Radar apparatus and control method thereof

Abstract

The invention provides a radar device and a control method thereof, and relates to the technical field of radars. The method comprises the following steps: acquiring an actual output voltage of a booster circuit, and determining an ideal output voltage corresponding to a radar signal to be output; the ideal output voltage is determined based on the frequency of the radar signal to be output; adjusting the output voltage of the booster circuit based on the actual output voltage and the ideal output voltage; wherein the booster circuit is used for providing an input voltage for the digital-to-analog converter, and the digital-to-analog converter is used for converting the radar signal to be output into an analog signal. According to the invention, the input voltage required by the radar signal of each frequency band can be provided for the digital-to-analog converter, the method can adapt to the radar signals of different frequency bands without using the digital-to-analog converter with high cost, and finally the construction cost of the radar is reduced.

Description

Technical Field

[0001] The present invention relates to the field of radar technology, and in particular to a radar device and a control method thereof. Background Art

[0002] DAC (Digital to Analog Converter) plays an important role in radar systems. It is used to convert digital signals into analog signals for transmission by RF modules. In actual work, the frequency range of radar signals is relatively wide, so DAC needs to be able to adapt to a wider frequency range.

[0003] Currently, multiple parallel DACs are used to process radar signals in different frequency bands to achieve wider frequency band coverage. However, this multi-channel parallel processing method requires a more complex system architecture and data processing algorithm, resulting in excessively high radar construction costs. Summary of the invention

[0004] The present invention provides a radar device and a control method thereof, which are used to solve the defect of high construction cost of radar in the prior art.

[0005] The present invention provides a control method for a radar device, wherein the radar device comprises a voltage boost circuit and a digital-to-analog converter connected to each other, and the method comprises: Collecting the actual output voltage of the boost circuit and determining an ideal output voltage corresponding to the radar signal to be output; the ideal output voltage is determined based on the frequency of the radar signal to be output; adjusting the output voltage of the boost circuit based on the actual output voltage and the ideal output voltage; The boost circuit is used to provide an input voltage for the digital-to-analog converter, and the digital-to-analog converter is used to convert the radar signal to be output into an analog signal.

[0006] According to a control method of a radar device provided by the present invention, adjusting the output voltage of the boost circuit based on the actual output voltage and the ideal output voltage includes: Determining an adjustment coefficient based on a voltage deviation between the actual output voltage and the ideal output voltage; The adjustment coefficient is sent to the boost circuit, where the adjustment coefficient is used to instruct the boost circuit to adjust the output voltage.

[0007] According to a control method of a radar device provided by the present invention, determining an adjustment coefficient based on a voltage deviation between the actual output voltage and the ideal output voltage includes: Determining an adjustment coefficient based on the actual output voltage, the voltage deviation of the ideal output voltage, and a calculation method of the adjustment coefficient; The adjustment coefficient calculation method is determined based on simulation of the designed boost circuit.

[0008] According to a control method of a radar device provided by the present invention, the method further includes: The output current of the boost circuit is adjusted based on the input current requirement of the digital-to-analog converter; the input current requirement is used to indicate an input current range.

[0009] According to a control method of a radar device provided by the present invention, before collecting the actual output voltage of the boost circuit, the method further includes: Determining a first design parameter based on signal parameters of a plurality of radar signals; the plurality of radar signals include radar signals of a plurality of frequency bands, and the first design parameter is used to indicate the design of the digital-to-analog converter; Based on the input parameter requirements of the digital-to-analog converter, determining the output parameter requirements of the boost circuit; the input parameter requirements include input voltage requirements and / or input current requirements, the input voltage requirements are used to indicate an input voltage range, and the input current requirements are used to indicate an input current range; Based on the output parameter requirement, a second design parameter is determined; the second design parameter is used to indicate the design of the boost circuit.

[0010] According to a control method of a radar device provided by the present invention, when the input parameter requirement includes an input voltage requirement, determining the output parameter requirement of the boost circuit based on the input parameter requirement of the digital-to-analog converter includes: determining an output voltage requirement of the boost circuit based on the input voltage requirement and a comprehensive frequency range of the plurality of radar signals; The comprehensive frequency range is determined based on the multiple frequency segments, and the output voltage requirement is used to indicate the output voltage range.

[0011] According to a control method of a radar device provided by the present invention, after determining the second design parameter based on the output parameter requirement, the method further includes: Determine a current radar signal to be tested from the multiple radar signals; Collecting the actual test output voltage of the boost circuit, and determining the ideal test output voltage corresponding to the current radar signal to be tested; Based on the actual output voltage of the test and the ideal output voltage of the test, adjusting the output voltage of the boost circuit, and collecting the adjusted output voltage; Optimizing the boost circuit based on the adjusted output voltage and the tested ideal output voltage; Return to the step of determining the current radar signal to be tested from the multiple radar signals until all the multiple radar signals are tested.

[0012] The present invention also provides a radar device, comprising a boost circuit, a digital-to-analog converter and a feedback control circuit, wherein the boost circuit is connected to the digital-to-analog converter, and the boost circuit is connected to the feedback control circuit; The feedback control circuit is used to execute any one of the control methods for the radar device described above.

[0013] The present invention also provides a control device for a radar device, the radar device comprising a connected boost circuit and a digital-to-analog converter, the control device comprising: A voltage acquisition module, used to acquire the actual output voltage of the boost circuit and determine an ideal output voltage corresponding to the radar signal to be output; the ideal output voltage is determined based on the frequency of the radar signal to be output; A voltage adjustment module, used for adjusting the output voltage of the boost circuit based on the actual output voltage and the ideal output voltage; The boost circuit is used to provide an input voltage for the digital-to-analog converter, and the digital-to-analog converter is used to convert the radar signal to be output into an analog signal.

[0014] The present invention also provides an electronic device, comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein when the processor executes the computer program, a control method for the radar device as described above is implemented.

[0015] The present invention also provides a non-transitory computer-readable storage medium having a computer program stored thereon, and when the computer program is executed by a processor, the control method of the radar device as described in any one of the above is implemented.

[0016] The radar device and control method thereof provided by the present invention collect the actual output voltage of the boost circuit and determine the ideal output voltage corresponding to the radar signal to be output, and the ideal output voltage is determined based on the frequency of the radar signal to be output, so that different radar signals have different frequency characteristics. Therefore, different frequencies of the radar signals to be output correspond to different ideal output voltages. Then, based on the actual output voltage and the ideal output voltage, the output voltage of the boost circuit is adjusted. No matter which frequency band the radar signal to be output belongs to, the output voltage of the boost circuit can be adjusted to meet the requirements of the radar signals of each frequency band through the feedback mechanism, that is, the input voltage required by the radar signals of each frequency band is provided to the digital-to-analog converter in this way, without using a digital-to-analog converter with a relatively high cost, that is, it can adapt to the radar signals of different frequency bands, and finally reduce the construction cost of the radar. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 This is one of the flow charts of the control method of the radar device provided by the present invention.

[0019] Figure 2 This is the second flow chart of the control method of the radar device provided by the present invention.

[0020] Figure 3 This is the third flow chart of the control method of the radar device provided by the present invention.

[0021] Figure 4 It is a schematic diagram of the structure of the control device of the radar device provided by the present invention.

[0022] Figure 5 It is a structural schematic diagram of the electronic device provided by the present invention. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be clearly and completely described below in conjunction with the drawings of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0024] DAC (Digital to Analog Converter) is widely used in the field of radar signal processing, for example, radar target detection and tracking, that is, DAC is used to convert the received radar signal into an analog signal for subsequent signal processing and target detection and tracking algorithms; it covers a variety of radar systems, including radar systems from short to long distances and different frequency bands, such as weather radar, aviation radar, ground monitoring radar, etc. Among them, pulse radar is a radar system that detects targets by sending short pulse signals and receiving echoes; broadband DAC is used in pulse radar to generate high-frequency, high-dynamic range pulse signals and convert them into analog signals for transmission; the application of broadband DAC in pulse radar includes Doppler radar, phased array radar, synthetic aperture radar, etc. Synthetic aperture radar is a radar system that obtains high-resolution radar images by synthesizing large apertures; broadband DAC is used in synthetic aperture radar to generate high-speed, high-resolution pulse signals and convert them into analog signals for transmission; the application of broadband DAC in synthetic aperture radar plays an important role in obtaining high-quality radar images. Radar interferometry is a radar system that obtains target height, speed and other information by interfering multiple radar echoes. Wideband DAC is used in radar interferometry to generate high-frequency, high-precision pulse signals and convert them into analog signals for transmission. The application of wideband DAC in radar interferometry plays an important role in achieving high-precision target parameter estimation.

[0025] At present, the radar signal processing technology solutions for broadband DAC cover a variety of different design methods and implementation technologies, which can include direct digital synthesis, baseband digital synthesis, interpolation filtering, multi-channel parallel processing, and hybrid analog / digital synthesis.

[0026] Among them, direct digital synthesis uses a high-speed digital clock and a high-resolution DAC chip to directly generate high-frequency, high-speed analog signals. This method usually has a higher sampling rate and a larger dynamic range, which can meet the requirements of broadband radar signal processing. However, the main challenge of this method is the high cost and power consumption of the generation of high-speed digital clocks and high-resolution DAC chips.

[0027] Among them, baseband digital synthesis is a method that performs baseband digital synthesis on radar signals and then generates analog signals through a low-speed DAC chip. This method usually has lower power consumption and cost, and can achieve wider frequency band coverage. However, due to the need for baseband digital synthesis, this method still requires more complex digital signal processing algorithms and hardware circuit design, resulting in a relatively high cost for radar construction.

[0028] Among them, interpolation filtering uses a low-speed DAC chip to generate an analog signal with a lower sampling rate, and upsamples it to a higher frequency through interpolation filtering technology. This method can achieve a wider frequency band coverage at a lower sampling rate, and has lower power consumption and cost. However, interpolation filtering may introduce signal distortion and noise, and requires higher precision requirements for the design of the filter.

[0029] Among them, hybrid analog / digital synthesis combines the advantages of analog synthesis and digital synthesis, and generates high-frequency and high-speed analog signals by hybrid synthesis of digital signals and analog signals. This method can achieve higher performance while maintaining low power consumption and cost. However, this method has high system complexity. Hybrid synthesis requires processing analog signals and digital signals at the same time, and the design complexity is high. It involves efficient collaboration between analog circuits and digital circuits, which may increase the difficulty of development and debugging. In addition, this method has signal synchronization problems. The mixing of analog signals and digital signals may cause synchronization problems, especially when high-frequency and high-speed signal processing. Any small timing deviation will affect the signal quality. In addition, this method has conversion loss. Certain losses and noise may be introduced during digital-analog conversion and reverse conversion, resulting in signal distortion and affecting system performance. In addition, this method has process constraints. High-precision analog circuits and digital circuits require different manufacturing processes, and trade-offs may need to be made in process selection and optimization, affecting the overall cost and integration. Therefore, although this method has advantages in power consumption and cost, complexity and signal integrity issues still need to be solved in implementation.

[0030] In summary, although DAC has many advantages in the field of radar signal processing, it also has some defects. First, high power consumption: broadband DAC usually needs to process high-speed and high-frequency signals, so it requires high-speed digital clocks and high-resolution DAC chips, which may lead to higher power consumption. High power consumption may pose challenges to the energy consumption and thermal management of the system, especially in some low-power or portable applications. Second, complex digital signal processing algorithms: broadband DAC usually requires digital signal processing, such as baseband digital synthesis, interpolation filtering, etc., which may require more complex algorithms and hardware circuit design. This may increase the complexity and development difficulty of the system, and may require higher computing resources. Third, high cost: high-speed and high-resolution DAC chips are usually expensive, which may increase the cost of the system. In addition, some broadband DAC technical solutions may require complex system architecture and circuit design, which may also increase the cost of the system. Fourth, signal distortion and noise: broadband DAC may face problems of signal distortion and noise when processing high-speed and high-frequency signals. For example, interpolation filtering may introduce signal distortion, and high-speed digital clocks may introduce clock jitter and noise. This may have a negative impact on the performance of the system, especially in applications with high signal quality requirements. Fifth, system integration difficulty: The integration of broadband DAC in radar systems may face certain difficulties. For example, multi-channel parallel processing solutions may require more complex system architecture and data processing algorithms, which poses challenges to system integration and management.

[0031] In summary, in actual work, the frequency range of radar signals is relatively wide, so the DAC needs to be able to adapt to a relatively wide frequency range. Even by using multiple parallel DACs to process radar signals of different frequency bands, a wider frequency band coverage can be achieved. However, this multi-channel parallel processing method requires a more complex system architecture and data processing algorithm, resulting in excessively high radar construction costs.

[0032] In view of the above problems, the present invention proposes the following embodiments. Figure 1-Figure 3 A control method of a radar apparatus according to the present invention is described.

[0033] Figure 1 FIG. 1 is one of the flow charts of the control method of the radar device provided by the present invention, such as Figure 1 As shown, the control method of the radar device includes the following steps 110 and 120.

[0034] Step 110 , collecting the actual output voltage of the boost circuit and determining an ideal output voltage corresponding to the radar signal to be output.

[0035] It should be noted that the execution subject of the control method provided in the embodiment of the present invention may be a feedback control circuit. In one embodiment, the feedback control circuit includes a data collector, which can collect various data, such as the actual output voltage of the boost circuit, or the signal frequency of the radar signal to be output, and transmit these data to the control module (processing module) of the feedback control circuit. Furthermore, the data collector can not only collect data, but also have a certain data processing capability, that is, the execution subject of the control method provided in the embodiment of the present invention may also be directly the data collector. Furthermore, the data collector can be a MeterBus data collector, so as to improve the real-time performance of data collection, and then timely adjust the output voltage of the boost circuit to ensure the stability of the radar device.

[0036] The radar device includes a connected boost circuit and a digital-to-analog converter. Of course, the radar device may also include other components, such as a component for generating radar signals, a radio frequency module for transmitting analog signals, and the like.

[0037] The boost circuit is used to provide an input voltage to the digital-to-analog converter, and the digital-to-analog converter is used to convert the radar signal to be output into an analog signal. The boost circuit is connected to the digital-to-analog converter, so that the boost circuit can be used to provide an input voltage to the digital-to-analog converter; the boost circuit is used to make the output voltage higher than the input voltage, thereby ensuring that sufficient voltage is provided to the digital-to-analog converter. The digital-to-analog converter is used to convert a digital signal into an analog signal for subsequent processing based on the analog signal.

[0038] In one embodiment, the digital-to-analog converter is a broadband DAC. In one embodiment, the voltage boost circuit is a Boost voltage boost circuit.

[0039] Here, the actual output voltage of the boost circuit is the actual output voltage of the boost circuit, that is, the output voltage actually provided by the digital-to-analog converter.

[0040] Here, the radar signal to be output is a radar signal to be transmitted, and the radar signal to be output is a digital signal, which needs to be converted into an analog signal by a digital-to-analog converter.

[0041] Considering that different radar signals have different characteristics, different radar signals to be output correspond to different ideal output voltages, so the ideal output voltage corresponding to the radar signal to be output is determined.

[0042] In some embodiments, based on the signal-voltage mapping relationship, the ideal output voltage corresponding to the radar signal to be output is determined. The signal-voltage mapping relationship includes multiple corresponding relationships, and any corresponding relationship represents the corresponding relationship between a radar signal and an ideal output voltage. The signal-voltage mapping relationship is set in advance, for example, the mapping relationship is determined based on a large number of experiments and simulations.

[0043] The ideal output voltage is determined based on the frequency of the radar signal to be output, so that different radar signals have different frequency characteristics, and therefore different frequencies of radar signals to be output correspond to different ideal output voltages, thereby determining the ideal output voltage corresponding to the frequency of the radar signal to be output.

[0044] In one embodiment, the signal frequency of the radar signal to be output is determined, and based on the frequency-voltage mapping relationship, the ideal output voltage corresponding to the signal frequency is determined. The frequency-voltage mapping relationship includes multiple corresponding relationships, and any corresponding relationship represents the corresponding relationship between a signal frequency and an ideal output voltage. The frequency-voltage mapping relationship is set in advance, for example, the mapping relationship is determined based on a large number of experiments and simulations. For example, according to the radar signal frequency range (e.g., 500 MHz to 2 GHz), the ideal output voltage required for each frequency is defined, and these relationships can be derived based on experiments or formulas.

[0045] Furthermore, considering that different radar signals have different amplitude characteristics and modulation characteristics, different radar signals to be output have different ideal output voltages, that is, their voltage requirements vary due to different frequency bands, signal strengths, and modulation methods. In other words, different radar frequencies may require different voltage ranges to ensure effective signal processing; changes in signal strength require the circuit to work stably at different amplitudes; and different modulation methods may have different requirements for voltage response. Based on this, reasonable design and optimization ensure that the output voltage can maintain performance under various radar signal requirements.

[0046] Furthermore, the actual output voltage of the boost circuit is collected in real time, and the output voltage of the boost circuit is adjusted in time, thereby ensuring the stability of the radar device.

[0047] Step 120: adjusting the output voltage of the boost circuit based on the actual output voltage and the ideal output voltage.

[0048] Specifically, based on the actual output voltage and the ideal output voltage, the output voltage of the boost circuit is adjusted to be as close to the ideal output voltage as possible.

[0049] In one embodiment, based on the voltage deviation between the actual output voltage and the ideal output voltage, the boost circuit is controlled to adjust the output voltage of the boost circuit. For example, the output voltage of the boost circuit is adjusted by directly controlling the switching frequency, duty cycle and other parameters of the boost circuit. This adjustment method is very flexible, thereby simplifying the feedback process and improving the response speed and accuracy.

[0050] In another embodiment, if it is determined that the output voltage of the boost circuit needs to be adjusted based on the actual output voltage and the ideal output voltage, the ideal output voltage is sent to the boost circuit, and the ideal output voltage instructs the boost circuit to adjust its output voltage.

[0051] In addition, when the radar signal to be output does not change, when the actual output voltage of the boost circuit changes, the output voltage of the boost circuit is adjusted in real time based on the output voltage change value to ensure that the input voltage of the digital-to-analog converter is within its rated operating range, that is, to ensure in real time that the input voltage of the digital-to-analog converter meets the requirements of the radar signal to be output.

[0052] It should be noted that by real-time monitoring of the actual output voltage of the boost circuit and adjusting its output voltage through feedback control, it is ensured that the input voltage of the digital-to-analog converter is always within the working range, that is, to generate a suitable output voltage to meet the frequency range requirements of the radar signal. In other words, the embodiment of the present invention monitors the signal frequency of the radar signal to be output, and dynamically adjusts the output voltage of the boost circuit according to the frequency change, ensuring that the digital-to-analog converter is adapted to signal acquisition of different frequencies.

[0053] The control method of the radar device provided by the embodiment of the present invention collects the actual output voltage of the boost circuit and determines the ideal output voltage corresponding to the radar signal to be output, and the ideal output voltage is determined based on the frequency of the radar signal to be output, so that different radar signals have different frequency characteristics. Therefore, different frequencies of radar signals to be output correspond to different ideal output voltages, and then based on the actual output voltage and the ideal output voltage, the output voltage of the boost circuit is adjusted. No matter which frequency band the radar signal to be output belongs to, the output voltage of the boost circuit can be adjusted to meet the requirements of radar signals of each frequency band through the feedback mechanism, that is, the input voltage required by the radar signals of each frequency band is provided to the digital-to-analog converter in this way, without using a digital-to-analog converter with a higher cost, that is, it can adapt to radar signals of different frequency bands, and finally reduce the construction cost of the radar.

[0054] Based on any of the above embodiments, in the method, the above step 120 includes: Determining an adjustment coefficient based on a voltage deviation between the actual output voltage and the ideal output voltage; The adjustment coefficient is sent to the boost circuit, where the adjustment coefficient is used to instruct the boost circuit to adjust the output voltage.

[0055] Here, the voltage deviation may be a difference between an actual output voltage and an ideal output voltage.

[0056] Here, the adjustment coefficient is dynamically adjusted according to the voltage deviation to compensate for the error in the system and make the actual output voltage close to the ideal value.

[0057] Here, the adjustment coefficient is used to instruct the boost circuit to adjust the output voltage, that is, the adjustment coefficient needs to be determined according to the specific structure of the boost circuit. Then, based on the structure of the boost circuit, the adjustment coefficient corresponding to each voltage deviation can be determined through a large number of experiments and simulations.

[0058] For ease of understanding, it is assumed that the adjustment coefficient is determined based on the following formula: adjustment coefficient = ideal output voltage / actual output voltage.

[0059] Specifically, the adjustment coefficient is sent to the boost circuit, so that the boost circuit can adjust the output voltage based on the adjustment coefficient. For example, the boost circuit adjusts its duty cycle and / or switching frequency based on the adjustment coefficient.

[0060] The control method of the radar device provided by the embodiment of the present invention determines an adjustment coefficient based on the voltage deviation between the actual output voltage and the ideal output voltage, and sends the adjustment coefficient to the boost circuit, and the adjustment coefficient is used to instruct the boost circuit to adjust the output voltage, so as to timely and quickly adjust the output voltage of the boost circuit based on the voltage deviation between the actual output voltage and the ideal output voltage, thereby ensuring the performance and stability of the radar device.

[0061] Based on any of the above embodiments, in the method, determining the adjustment coefficient based on the voltage deviation between the actual output voltage and the ideal output voltage includes: An adjustment coefficient is determined based on the actual output voltage, the voltage deviation of the ideal output voltage, and a calculation method of the adjustment coefficient.

[0062] The adjustment coefficient calculation method is determined based on simulation of the designed boost circuit.

[0063] It should be noted that the calculation method of the adjustment coefficient needs to be determined according to the actual application scenario and the design parameters of the boost circuit, and can be verified and optimized through experiments and simulations. Specifically, considering the nonlinear effect, the boost circuit will be affected by the non-ideal characteristics of the device (such as parasitic effects of inductance and capacitance, switching losses, etc.) in actual work, resulting in differences between the output voltage and theoretical calculations; and considering the dynamic response, the theoretical calculation usually assumes that the circuit works in a steady state, but in actual applications, the voltage and load will change. Simulation can verify the dynamic performance of the circuit under different working conditions, such as the response speed and stability of voltage regulation; and considering the system noise and interference, in actual environments, the circuit may be affected by noise and interference, especially in high-frequency signals. Simulation can help predict the system's anti-interference ability and avoid design risks. Therefore, simulation can help discover these problems in advance, thereby ensuring that the actual circuit can work stably under various complex conditions, rather than relying solely on theoretical calculations.

[0064] The control method of the radar device provided in the embodiment of the present invention takes into account that the determination method of the adjustment coefficient needs to be determined according to the specific structure of the boost circuit, and then based on the designed boost circuit, determines the calculation method of the adjustment coefficient through a large number of experiments and simulations, thereby improving the accuracy of determining the adjustment coefficient, thereby improving the adjustment accuracy of the output voltage of the boost circuit, and ultimately improving the performance and stability of the radar device.

[0065] Based on any of the above embodiments, in the method, in the above step 110, collecting the actual output voltage of the boost circuit includes: sending a query command to the boost circuit, the query command is used to instruct to obtain the actual output voltage of the boost circuit; receiving the actual output voltage returned by the boost circuit. Based on this, the real-time performance of data collection is improved, and the output voltage of the boost circuit is adjusted in time to ensure the stability of the radar device.

[0066] In a specific embodiment, a query command is sent to the boost circuit via the MeterBus communication protocol, so that the boost circuit responds to the query command and returns the actual output voltage to the execution subject of the embodiment of the present invention in the format of the MeterBus protocol.

[0067] Among them, MeterBus is a communication protocol for remotely reading and controlling smart devices. It communicates with the device through a serial port or wirelessly, usually using the 485 physical layer for communication. This application uses the MeterBus communication protocol to monitor and adjust the output voltage of the boost circuit in real time to ensure that the output voltage can adapt to radar signals in different frequency bands. In other words, we can obtain the output voltage data of the boost circuit through the MeterBus communication protocol and adjust it as needed to meet the requirements of the radar signal.

[0068] Based on any of the above embodiments, the method further includes: The output current of the boost circuit is adjusted based on the input current requirement of the digital-to-analog converter; the input current requirement is used to indicate an input current range.

[0069] Here, the input current requirement is used to indicate the input current range of the DAC, thereby ensuring that the working requirements of the DAC are met, that is, sufficient current supply is provided to prevent overload and underload.

[0070] It should be noted that when the input current demand of the digital-to-analog converter increases or decreases, the output power is dynamically adjusted to ensure that the boost circuit provides sufficient current for the digital-to-analog converter and avoid excess energy loss, thereby improving efficiency.

[0071] The control method of the radar device provided in the embodiment of the present invention dynamically adjusts the output current of the boost circuit according to the input current demand of the digital-to-analog converter to provide sufficient current supply, prevent overload or underload, thereby avoiding unnecessary energy loss and improving the efficiency of the radar device.

[0072] Based on any of the above embodiments, Figure 2 FIG. 2 is a flow chart of the control method of the radar device provided by the present invention. Figure 2 As shown, before the above step 110 , the method further includes: step 210 , step 220 and step 230 .

[0073] Step 210: determining a first design parameter based on signal parameters of a plurality of radar signals.

[0074] The multiple radar signals include radar signals of multiple frequency bands, and the first design parameter is used to indicate the design of the digital-to-analog converter. Based on this, the digital-to-analog converter designed based on the first design parameter can meet the requirements of radar signals of multiple frequency bands, thereby improving the performance and stability of the radar device. The radar signals of multiple frequency bands are radar signals involved in actual application processes.

[0075] In a specific embodiment, signal parameters of multiple radar signals are obtained, first design parameters are determined based on the signal parameters of the multiple radar signals, and the first design parameters are output for designers to design a digital-to-analog converter based on the first design parameters.

[0076] Exemplarily, the signal parameters include the highest frequency of each radar signal, the number of samples is determined based on the highest frequencies of the multiple radar signals, and the first design parameter is determined based on the sampling rate. That is, the digital-to-analog converter needs to be designed for a high sampling rate, and the radar signal usually has a higher frequency, so the digital-to-analog converter needs to be able to support a high sampling rate to ensure the integrity and accuracy of the signal.

[0077] Furthermore, the first design parameter includes distortion requirements, which requires the digital-to-analog converter to have low distortion. Considering that the distortion of the digital-to-analog converter will affect the quality of the signal, it is necessary to select a digital-to-analog converter with low distortion. Among them, distortion is generally divided into two types: DC distortion and AC distortion. DC distortion includes zero bias, gain error, etc.; AC distortion includes harmonic distortion and nonlinear distortion, which can be reduced by selecting a high-precision DAC chip.

[0078] In one embodiment, distortion can be reduced by calibration. For example, zero-bias calibration: measure the zero-point offset of the DAC output signal and compensate it in software. Gain error calibration: measure the gain error of the DAC output signal and adjust it to ensure that the output voltage meets expectations. Non-linear distortion calibration: reduce distortion by measuring the non-linear distortion (such as harmonic distortion) of the DAC output signal and applying a correction algorithm in software. Dynamic calibration: adjust the output of the DAC in real time when the signal changes, and use a dynamic calibration algorithm to cope with distortion under different working conditions. Further, intelligent feedback mechanism: use a real-time feedback mechanism to continuously adjust the calibration process to ensure long-term stability. High-precision measurement: combine high-precision measuring instruments to improve the accuracy and reliability of calibration.

[0079] Further, the first design parameter includes a noise requirement, thereby requiring the digital-to-analog converter to have low noise. Considering that noise will affect the sensitivity and detection performance of the signal, it is necessary to select a low-noise DAC device. Noise is generally divided into two types: quantization noise and charge pump noise. Quantization noise is the noise introduced by the quantization characteristics of the DAC, which can be reduced by increasing the resolution of the DAC. Charge pump noise is the noise introduced by the charge pump circuit of the DAC, which can be reduced by optimizing the charge pump circuit design.

[0080] In one embodiment, the bit width is increased and a DAC chip with a higher bit width is selected. For example, upgrading from a 12-bit DAC to a 16-bit DAC will directly increase the resolution and output accuracy of the DAC. In another embodiment, a multi-stage DAC architecture is used, such as encryption bit technology, to improve the output accuracy through additional bits. In another embodiment, multiple low-resolution DACs are used and their output signals are superimposed to improve the overall resolution through multi-channel combination. For example, two 8-bit DACs are combined into a 16-bit DAC. In another embodiment, the sampling frequency is increased and digital filtering technology is used to oversample the sampled signal to reduce quantization noise, thereby effectively improving the effective resolution of the signal. In another embodiment, an incremental DAC design is used to improve the resolution by gradually increasing the signal value. In another embodiment, a high-precision reference voltage source is used to reduce the noise and drift of the voltage reference and improve the accuracy of the DAC. Further, appropriate DAC chips and circuits are selected or designed according to requirements; the DAC is calibrated in detail to ensure that its resolution in actual applications meets the design requirements; the performance of the DAC under different conditions is verified through actual testing and simulation to optimize the design.

[0081] It should be noted that quantization noise can be reduced by increasing the resolution of the DAC, and charge pump noise can be reduced by optimizing the charge pump circuit design. Therefore, in the design of broadband DAC, it is necessary to select a low-noise DAC chip and optimize the charge pump circuit design to reduce the charge pump noise. In addition, in order to achieve a high sampling rate, a high-speed DAC chip can be selected, and the circuit layout and signal transmission line can be reasonably designed to reduce the loss and distortion of the transmission bandwidth. The design of broadband DAC needs to comprehensively consider factors such as sampling rate, distortion and noise, and select a suitable DAC chip and circuit design scheme. The specific design parameters and calculation formulas can be adjusted and calculated according to the actual application requirements and the performance parameters of the DAC device.

[0082] Furthermore, after designing the digital-to-analog converter, simulation and experimental verification are required to ensure that the DAC can meet the design requirements, thereby ensuring the high quality and stability of the output voltage and ensuring that the designed DAC meets the required performance and reliability in practical applications.

[0083] Furthermore, in order to achieve a high sampling rate of the DAC, the following methods can be used. First, optimize the signal path of the DAC to reduce signal loss and interference, such as using short and straight signal lines to reduce signal transmission impedance. Second, ensure a good ground plane design to reduce ground noise and ground potential differences. Third, design a suitable filter (such as a low-pass filter) to reduce high-frequency noise and avoid signal distortion. Fourth, design a suitable impedance matching network to ensure the transmission bandwidth and quality of the signal. Fifth, use a high-stability clock source to provide an accurate sampling clock to reduce the impact of clock jitter on the sampling rate. Based on this, the performance of the DAC can be improved to ensure stable operation at a high sampling rate.

[0084] Choose a higher-resolution DAC chip (such as 16-bit, 18-bit DAC) to achieve higher-precision digital-to-analog conversion, thereby increasing the DAC's resolution to enhance accuracy.

[0085] Optimize the reference voltage source and current source design inside the DAC, use a low-noise power supply, and apply appropriate filter design to reduce output noise, thereby reducing the noise and nonlinear distortion of the DAC output. Select high-speed DAC chips, optimize circuit design to support higher sampling rates, and use high-speed PCB design technology to reduce signal delay and distortion, thereby increasing the sampling speed of the DAC. Use high-quality PCB boards, reasonably layout the DAC and related circuits, and ensure good power decoupling and signal shielding, that is, optimize the circuit layout to reduce noise and interference.

[0086] Step 220: Determine the output parameter requirement of the boost circuit based on the input parameter requirement of the digital-to-analog converter.

[0087] The input parameter requirement includes an input voltage requirement and / or an input current requirement, wherein the input voltage requirement is used to indicate an input voltage range, and the input current requirement is used to indicate an input current range.

[0088] Step 230: Determine a second design parameter based on the output parameter requirement; the second design parameter is used to indicate the design of the boost circuit.

[0089] Here, the input current requirement is used to indicate the input current range of the DAC, thereby ensuring that the working requirements of the DAC are met, that is, sufficient current supply is provided to prevent overload and underload.

[0090] It should be understood that the output parameter requirements of the boost circuit should cover the input parameter requirements of the digital-to-analog converter.

[0091] Exemplarily, the input parameter requirements include input voltage requirements, based on which the output voltage requirements of the boost circuit are determined, and the output voltage requirements are used to indicate the output voltage range of the boost circuit. That is, the output voltage range of the boost circuit should be able to cover the input voltage range of the DAC to ensure that sufficient input voltage can be provided for the DAC to operate normally. That is, the selection of the input voltage range of the boost circuit should be determined according to the specifications and requirements of the DAC, and the input voltage range includes a minimum input voltage and a maximum input voltage.

[0092] Furthermore, the input voltage requirement also includes a requirement for input voltage stability and the like.

[0093] Exemplarily, the input parameter requirements include input current requirements, based on which the output current requirements of the boost circuit are determined, and the output current requirements are used to indicate the output current range of the boost circuit. That is, the output current range of the boost circuit should be able to cover the input current range of the DAC to ensure that sufficient input current can be provided for the DAC to operate normally. That is, the selection of the input current range of the boost circuit should be determined according to the specifications and requirements of the DAC, and the input current range includes a minimum input current and a maximum input current.

[0094] Further, the second design parameter includes efficiency. Considering the efficiency of the boost circuit is also an important consideration. A high-efficiency boost circuit can reduce energy waste and provide a more stable output voltage. When selecting the topology and components of the boost circuit, it is necessary to comprehensively consider the trade-off between efficiency and performance.

[0095] Furthermore, when designing a boost circuit, its performance can be evaluated by performing circuit simulation and calculation. For example, circuit simulation software can be used to simulate the performance of the boost circuit, including the evaluation of parameters such as input voltage range, output voltage range, output current capability, and efficiency. Circuit parameters can also be optimized, such as selecting appropriate inductor and capacitor values, adjusting the switching frequency, etc., to achieve optimal performance and efficiency.

[0096] In a specific embodiment, the input parameter requirements of the digital-to-analog converter are obtained, the output parameter requirements of the boost circuit are determined based on the input parameter requirements of the digital-to-analog converter, the second design parameters are determined based on the output parameter requirements, and the second design parameters are output for designers to design the boost circuit based on the second design parameters.

[0097] The control method of the radar device provided by the embodiment of the present invention first determines a first design parameter based on signal parameters of a plurality of radar signals, and the plurality of radar signals include radar signals of a plurality of frequency bands, and the first design parameter is used to indicate the design of the digital-to-analog converter, so as to ensure that the digital-to-analog converter can meet the requirements of the radar signals of the plurality of frequency bands, thereby improving the performance and stability of the radar device; then, based on the input parameter requirements of the digital-to-analog converter, the output parameter requirements of the boost circuit are determined, and the input parameter requirements include input voltage requirements and / or input current requirements, the input voltage requirements are used to indicate the input voltage range, and the input current requirements are used to indicate the input current range, and based on the output parameter requirements, a second design parameter is determined, and the second design parameter is used to indicate the design of the boost circuit, thereby

[0098] Ensure that the boost circuit can provide stable voltage and current for the digital-to-analog converter, that is, ensure that the output parameters of the boost circuit match the requirements of the digital-to-analog converter to achieve overall stable operation.

[0099] Based on any of the above embodiments, in the method, when the input parameter requirement includes an input voltage requirement, the step 220 includes: An output voltage requirement of the boost circuit is determined based on the input voltage requirement and a comprehensive frequency range of the plurality of radar signals.

[0100] The comprehensive frequency range is determined based on the multiple frequency bands. Based on this, the comprehensive frequency range covers the frequency bands of all radar signals, thereby ensuring that the output voltage requirements of the radar signals are met.

[0101] The output voltage requirement is used to indicate the output voltage range. Based on this, ensure that the designed boost circuit can meet the output voltage range; that is, the output voltage range of the boost circuit can meet the frequency range requirements of each radar signal. For example, the frequency range of radar signals is relatively wide, usually from hundreds of MHz to several GHz, so the output voltage range should be high enough to meet the requirements of these high-frequency signals. In other words, for high-frequency signals, the DAC requires a higher output voltage to maintain signal integrity and dynamic range, so the highest frequency of the radar signal affects the required output voltage.

[0102] Furthermore, the second design parameter includes a device selection parameter, for example, selecting high-frequency, high-efficiency components, such as low ESR capacitors and low on-resistance MOSFETs, to reduce power consumption and loss and improve system response speed.

[0103] For example, if the input voltage range of the DAC is 0 V to 5 V, the frequency range of the radar signal is 500 MHz to 2 GHz, and the output current requirement is 100 mA, then a Boost circuit topology (such as a boost-type boost circuit or a SEPIC-type boost circuit) can be selected, and appropriate circuit components can be selected, such as high-frequency and high-voltage MOSFETs, high-frequency inductors and capacitors.

[0104] It should be understood that when designing the boost circuit, an adaptive function is also added to further improve the radar signal acquisition performance of the DAC. For example, a feedback control loop is added to the circuit to monitor the actual input voltage of the DAC and the frequency of the radar signal to be output in real time, and automatically adjust the output voltage of the boost circuit to adapt to different input voltages and frequency ranges. This can improve the stability and performance of the system and adapt to the radar signal acquisition requirements of different frequency ranges.

[0105] The control method of the radar device provided by the embodiment of the present invention determines the output voltage requirement of the boost circuit based on the input voltage requirement and the comprehensive frequency range of multiple radar signals, and determines the second design parameter based on the output voltage requirement, and the second design parameter is used to indicate the design of the boost circuit, so as to ensure that the boost circuit can provide a stable voltage for the digital-to-analog converter and ensure that the frequency range requirements of each radar signal can be met, that is, ensure that the output parameters of the boost circuit match the requirements of the digital-to-analog converter and the requirements of the radar signal, so as to achieve overall stable operation.

[0106] Based on any of the above embodiments, Figure 3 FIG. 3 is a flow chart of the control method of the radar device provided by the present invention. Figure 3 As shown, after the above step 230, the method further includes: step 240, step 250, step 260, step 270 and step 280.

[0107] Step 240: determine the current radar signal to be tested from the multiple radar signals.

[0108] It should be noted that one radar signal is tested at a time until all radar signals are tested.

[0109] Step 250 , collecting the actual test output voltage of the boost circuit, and determining the ideal test output voltage corresponding to the current radar signal to be tested.

[0110] Here, the actual output voltage under test is the actual output voltage of the boost circuit during the test phase, that is, the output voltage actually provided by the digital-to-analog converter.

[0111] Here, the method for determining the test ideal output voltage may refer to the method for determining the ideal output voltage described above, which will not be described in detail here.

[0112] Step 260: adjusting the output voltage of the boost circuit based on the actual output voltage of the test and the ideal output voltage of the test, and collecting the adjusted output voltage.

[0113] Here, the adjustment method of the output voltage can refer to the adjustment method in the above application stage, which will not be repeated here.

[0114] Step 270: Optimize the boost circuit based on the adjusted output voltage and the tested ideal output voltage.

[0115] Specifically, based on the difference between the adjusted output voltage and the tested ideal output voltage, an optimization parameter is determined and output to optimize the boost circuit, ultimately ensuring that the adjusted output voltage is close to the tested ideal output voltage. The optimization parameter is used to indicate how to optimize the boost circuit.

[0116] Step 280, returning to the step of determining the current radar signal to be tested from the multiple radar signals, until all the multiple radar signals are tested.

[0117] For ease of understanding, a specific embodiment is used for illustration here. During the system integration and debugging stage, the boost circuit can be monitored and adjusted in real time through the following steps to ensure that the output voltage can adapt to radar signals in different frequency bands. Specifically, connect the MeterBus data collector and the Boost boost circuit: connect the MeterBus data collector to the Boost boost circuit through a serial port or wirelessly to ensure that the data collector can read the output voltage information of the circuit; configure the MeterBus data collector: according to the MeterBus protocol, configure the parameters of the data collector, including communication rate, address, etc., to ensure that the data collector can correctly communicate with the circuit and read the correct voltage information; monitor the output voltage in real time: read the output voltage information of the Boost boost circuit through the MeterBus data collector, and monitor the output voltage value in real time; analyze the adaptability of the output voltage to the radar signal requirements: compare the real-time monitored output voltage value with the radar signal requirements. Voltage range is compared to analyze whether the output voltage can adapt to radar signals of different frequency bands; adjust the output voltage: according to the real-time monitored output voltage information and analysis results, adjust the parameters of the Boost circuit, such as adjusting its operating frequency, duty cycle, etc., to ensure that the output voltage can adapt to radar signals of different frequency bands; verify the stability of the output voltage: the output voltage of the Boost circuit after adjustment should remain stable and meet the voltage range required by the radar signal. The output voltage can be monitored in real time through the MeterBus data collector and stability can be verified; optimize the adjustment results: if the output voltage still cannot meet the adaptability required by the radar signal, multiple adjustments and optimizations can be made until the output voltage can stably adapt to radar signals of different frequency bands. Different radar signals require different voltage ranges and adaptability, so when adjusting the output voltage, reasonable design and optimization should be carried out according to the specific radar signal requirements.

[0118] The control method of the radar device provided in the embodiment of the present invention verifies and optimizes the performance of the system, adjusts the design parameters of the boost circuit, ensures that the system meets the design requirements and eliminates potential problems through the above-mentioned method.

[0119] The control device of the radar device provided by the present invention is described below. The control device of the radar device described below and the control method of the radar device described above can be referred to each other.

[0120] Figure 4 is a schematic diagram of the structure of the control device of the radar device provided by the present invention, such as Figure 4 As shown, the control device of the radar device includes a voltage acquisition module 410 and a voltage adjustment module 420. The radar device includes a connected boost circuit and a digital-to-analog converter.

[0121] The voltage acquisition module 410 is used to acquire the actual output voltage of the boost circuit and determine the ideal output voltage corresponding to the radar signal to be output; the ideal output voltage is determined based on the frequency of the radar signal to be output.

[0122] The voltage adjustment module 420 is used to adjust the output voltage of the boost circuit based on the actual output voltage and the ideal output voltage.

[0123] The boost circuit is used to provide an input voltage for the digital-to-analog converter, and the digital-to-analog converter is used to convert the radar signal to be output into an analog signal.

[0124] The control device of the radar device provided by the embodiment of the present invention collects the actual output voltage of the boost circuit and determines the ideal output voltage corresponding to the radar signal to be output, and the ideal output voltage is determined based on the frequency of the radar signal to be output, so that different radar signals have different frequency characteristics. Therefore, different frequencies of radar signals to be output correspond to different ideal output voltages, and then based on the actual output voltage and the ideal output voltage, the output voltage of the boost circuit is adjusted. No matter which frequency band the radar signal to be output is, the output voltage of the boost circuit can be adjusted to meet the requirements of radar signals of each frequency band through the feedback mechanism, that is, the input voltage required by the radar signals of each frequency band is provided to the digital-to-analog converter in this way, without using a digital-to-analog converter with a higher cost, that is, it can adapt to radar signals of different frequency bands, and finally reduce the construction cost of the radar.

[0125] Based on any of the above embodiments, the voltage adjustment module 420 is further used for: Determining an adjustment coefficient based on a voltage deviation between the actual output voltage and the ideal output voltage; The adjustment coefficient is sent to the boost circuit, where the adjustment coefficient is used to instruct the boost circuit to adjust the output voltage.

[0126] Based on any of the above embodiments, the voltage adjustment module 420 is further used for: Determining an adjustment coefficient based on the actual output voltage, the voltage deviation of the ideal output voltage, and a calculation method of the adjustment coefficient; The adjustment coefficient calculation method is determined based on simulation of the designed boost circuit.

[0127] Based on any of the above embodiments, the device further includes: A current adjustment module is used to adjust the output current of the boost circuit based on the input current requirement of the digital-to-analog converter; the input current requirement is used to indicate an input current range.

[0128] Based on any of the above embodiments, the device further includes: A first determination module, configured to determine a first design parameter based on signal parameters of a plurality of radar signals; the plurality of radar signals include radar signals of a plurality of frequency bands, and the first design parameter is used to indicate a design of the digital-to-analog converter; A second determination module is used to determine the output parameter requirement of the boost circuit based on the input parameter requirement of the digital-to-analog converter; the input parameter requirement includes an input voltage requirement and / or an input current requirement, the input voltage requirement is used to indicate an input voltage range, and the input current requirement is used to indicate an input current range; The third determination module is used to determine a second design parameter based on the output parameter requirement; the second design parameter is used to indicate the design of the boost circuit.

[0129] Based on any of the above embodiments, when the input parameter requirement includes an input voltage requirement, the second determining module is further configured to: determining an output voltage requirement of the boost circuit based on the input voltage requirement and a comprehensive frequency range of the plurality of radar signals; The comprehensive frequency range is determined based on the multiple frequency segments, and the output voltage requirement is used to indicate the output voltage range.

[0130] Based on any of the above embodiments, the device further includes: A signal determination module, used to determine a current radar signal to be tested from the multiple radar signals; A voltage determination module, used for collecting the actual test output voltage of the boost circuit, and determining the ideal test output voltage corresponding to the current radar signal to be tested; A test adjustment module, used for adjusting the output voltage of the boost circuit based on the actual test output voltage and the ideal test output voltage, and collecting the adjusted output voltage; A circuit optimization module, configured to optimize the boost circuit based on the adjusted output voltage and the tested ideal output voltage; The step return module is used to return to the step of determining the current radar signal to be tested from the multiple radar signals until the multiple radar signals are all tested.

[0131] The radar device provided by the present invention is described below. The radar device described below and the control method of the radar device described above can be referred to each other.

[0132] The radar device provided by the present invention includes a boost circuit, a digital-to-analog converter and a feedback control circuit, wherein the boost circuit is connected to the digital-to-analog converter, and the boost circuit is connected to the feedback control circuit. The feedback control circuit is used to execute the control method of the radar device provided by the above methods, which includes: collecting the actual output voltage of the boost circuit and determining the ideal output voltage corresponding to the radar signal to be output; the ideal output voltage is determined based on the frequency of the radar signal to be output; based on the actual output voltage and the ideal output voltage, adjusting the output voltage of the boost circuit; wherein the boost circuit is used to provide an input voltage for the digital-to-analog converter, and the digital-to-analog converter is used to convert the radar signal to be output into an analog signal.

[0133] Figure 5 An example of a physical structure diagram of an electronic device is shown in FIG. Figure 5 As shown, the electronic device may include: a processor 510, a communication interface 520, a memory 530 and a communication bus 540, wherein the processor 510, the communication interface 520 and the memory 530 communicate with each other through the communication bus 540. The processor 510 may call the logic instructions in the memory 530 to execute a control method for a radar device, the method comprising: collecting the actual output voltage of the boost circuit and determining an ideal output voltage corresponding to the radar signal to be output; the ideal output voltage is determined based on the frequency of the radar signal to be output; based on the actual output voltage and the ideal output voltage, adjusting the output voltage of the boost circuit; wherein the boost circuit is used to provide an input voltage for the digital-to-analog converter, and the digital-to-analog converter is used to convert the radar signal to be output into an analog signal.

[0134] In addition, the logic instructions in the above-mentioned memory 530 can be implemented in the form of a software functional unit and can be stored in a computer-readable storage medium when it is sold or used as an independent product. Based on such an understanding, the technical solution of the present invention, in essence, or the part that contributes to the prior art or the part of the technical solution, can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including a number of instructions for a computer device (which can be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the method described in each embodiment of the present invention. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), disk or optical disk, etc. Various media that can store program codes.

[0135] On the other hand, the present invention also provides a computer program product, which includes a computer program. The computer program can be stored on a non-transitory computer-readable storage medium. When the computer program is executed by a processor, the computer can execute the control method of the radar device provided by the above methods, the method including: collecting the actual output voltage of the boost circuit, and determining the ideal output voltage corresponding to the radar signal to be output; the ideal output voltage is determined based on the frequency of the radar signal to be output; based on the actual output voltage and the ideal output voltage, adjusting the output voltage of the boost circuit; wherein the boost circuit is used to provide an input voltage for the digital-to-analog converter, and the digital-to-analog converter is used to convert the radar signal to be output into an analog signal.

[0136] On the other hand, the present invention also provides a non-transitory computer-readable storage medium having a computer program stored thereon. When the computer program is executed by a processor, it is implemented to execute the control method of the radar device provided by the above-mentioned methods, the method comprising: collecting the actual output voltage of the boost circuit, and determining the ideal output voltage corresponding to the radar signal to be output; the ideal output voltage is determined based on the frequency of the radar signal to be output; based on the actual output voltage and the ideal output voltage, adjusting the output voltage of the boost circuit; wherein the boost circuit is used to provide an input voltage for the digital-to-analog converter, and the digital-to-analog converter is used to convert the radar signal to be output into an analog signal.

[0137] The device embodiments described above are merely illustrative, wherein the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or they may be distributed on multiple network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the scheme of this embodiment. Ordinary technicians in this field can understand and implement it without paying creative labor.

[0138] Through the description of the above implementation methods, those skilled in the art can clearly understand that each implementation method can be implemented by means of software plus a necessary general hardware platform, and of course, can also be implemented by hardware. Based on this understanding, the above technical solution is essentially or the part that contributes to the prior art can be embodied in the form of a software product, and the computer software product can be stored in a computer-readable storage medium, such as ROM / RAM, a disk, an optical disk, etc., including a number of instructions for a computer device (which can be a personal computer, a server, or a network device, etc.) to execute the methods described in each embodiment or some parts of the embodiments.

[0139] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A control method for a radar device, characterized in that: The radar device includes a voltage boost circuit and a digital-to-analog converter connected thereto, and the method includes: Collecting the actual output voltage of the boost circuit and determining an ideal output voltage corresponding to the radar signal to be output; the ideal output voltage is determined based on the frequency of the radar signal to be output; adjusting the output voltage of the boost circuit based on the actual output voltage and the ideal output voltage; The boost circuit is used to provide an input voltage for the digital-to-analog converter, and the digital-to-analog converter is used to convert the radar signal to be output into an analog signal.

2. The control method of the radar device according to claim 1, characterized in that: The step of adjusting the output voltage of the boost circuit based on the actual output voltage and the ideal output voltage includes: Determining an adjustment coefficient based on a voltage deviation between the actual output voltage and the ideal output voltage; The adjustment coefficient is sent to the boost circuit, where the adjustment coefficient is used to instruct the boost circuit to adjust the output voltage.

3. The control method of the radar device according to claim 2, characterized in that: The step of determining an adjustment coefficient based on a voltage deviation between the actual output voltage and the ideal output voltage includes: Determining an adjustment coefficient based on the actual output voltage, the voltage deviation of the ideal output voltage, and a calculation method of the adjustment coefficient; The adjustment coefficient calculation method is determined based on simulation of the designed boost circuit.

4. The control method of the radar device according to any one of claims 1 to 3, characterized in that: The method further comprises: The output current of the boost circuit is adjusted based on the input current requirement of the digital-to-analog converter; the input current requirement is used to indicate an input current range.

5. The control method of the radar device according to any one of claims 1 to 3, characterized in that: Before collecting the actual output voltage of the boost circuit, the method further includes: Determining a first design parameter based on signal parameters of a plurality of radar signals; the plurality of radar signals include radar signals of a plurality of frequency bands, and the first design parameter is used to indicate a design of the digital-to-analog converter; Based on the input parameter requirements of the digital-to-analog converter, determining the output parameter requirements of the boost circuit; the input parameter requirements include input voltage requirements and / or input current requirements, the input voltage requirements are used to indicate the input voltage range, and the input current requirements are used to indicate the input current range; Based on the output parameter requirement, a second design parameter is determined; the second design parameter is used to indicate the design of the boost circuit.

6. The control method of the radar device according to claim 5, characterized in that: In the case where the input parameter requirement includes an input voltage requirement, determining the output parameter requirement of the boost circuit based on the input parameter requirement of the digital-to-analog converter includes: determining an output voltage requirement of the boost circuit based on the input voltage requirement and a comprehensive frequency range of the plurality of radar signals; The comprehensive frequency range is determined based on the multiple frequency segments, and the output voltage requirement is used to indicate the output voltage range.

7. The control method of the radar device according to claim 5, characterized in that: After determining the second design parameter based on the output parameter requirement, the method further includes: Determine a current radar signal to be tested from the multiple radar signals; Collecting the actual test output voltage of the boost circuit, and determining the ideal test output voltage corresponding to the current radar signal to be tested; Based on the actual output voltage of the test and the ideal output voltage of the test, adjusting the output voltage of the boost circuit, and collecting the adjusted output voltage; Optimizing the boost circuit based on the adjusted output voltage and the tested ideal output voltage; Return to the step of determining the current radar signal to be tested from the multiple radar signals until all the multiple radar signals are tested.

8. A radar device, characterized in that: It includes a boost circuit, a digital-to-analog converter and a feedback control circuit, wherein the boost circuit is connected to the digital-to-analog converter, and the boost circuit is connected to the feedback control circuit; The feedback control circuit is used to execute the control method of the radar device according to any one of claims 1 to 7.

9. A control device for a radar device, characterized in that: The radar device includes a connected boost circuit and a digital-to-analog converter, and the control device includes: A voltage acquisition module, used to acquire the actual output voltage of the boost circuit and determine an ideal output voltage corresponding to the radar signal to be output; the ideal output voltage is determined based on the frequency of the radar signal to be output; A voltage adjustment module, used for adjusting the output voltage of the boost circuit based on the actual output voltage and the ideal output voltage; The boost circuit is used to provide an input voltage for the digital-to-analog converter, and the digital-to-analog converter is used to convert the radar signal to be output into an analog signal.

10. An electronic device comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein: When the processor executes the computer program, the control method of the radar device according to any one of claims 1 to 7 is implemented.

11. A non-transitory computer-readable storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, the control method of the radar device according to any one of claims 1 to 7 is implemented.

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