Highly integrated radar device

Abstract

The invention provides highly integrated radar equipment, which comprises an antenna extension set and a wave control channel signal processing extension set, the antenna extension set comprises a radar antenna array, the radar antenna array comprises a plurality of antenna units, and the wave control channel signal processing extension set comprises a plurality of chips integrated on a signal processing board. And the wave control channel signal processing extension set is used for generating an excitation signal comprising a wave control signal for controlling the phase of each antenna unit. And the antenna extension set adjusts the phase under the control of the wave control signal, realizes external radiation of the excitation signal, and is used for receiving an echo signal reflected by the excitation signal after encountering the target object. And the wave control channel signal processing extension set is also used for processing the echo signal to obtain the position information of the target object. In the scheme, the antenna extension adopts a phased array technology, electronic ground antenna control can be realized, multi-target tracking search can be realized, and the wave control channel extension adopts a multi-chip integrated structure, so that the size and the power consumption can be greatly reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of radar equipment, and in particular to a highly integrated radar equipment. Background Art

[0002] In recent years, with the maturity of phased array technology and the evolution of usage scenarios, the market demand for active detection equipment has become increasingly higher, and with it comes high demands for cost and integration. Traditional active radars are mainly microwave radars. Due to the limitations of previous chip processes, the integration and cost of microwave radars have always been difficult to solve.

[0003] Traditional radars are mainly composed of servo frames, secondary power extensions, signal data processing extensions, channel extensions, antenna extensions and other modules. Traditional radar equipment uses a frame design. When searching and tracking targets, high-mobility targets require beams to quickly track targets. However, since the frame is controlled by a servo motor, the search and tracking speed is relatively slow, and it is impossible to track multiple targets at a time. Only one target can be searched and tracked. Each module is assembled and produced separately, making the volume of the whole machine difficult to control. Each module is also built with discrete devices, which requires a high level of design and high requirements for assembly production processes. A lot of joint debugging work needs to be done in the later debugging process, which also causes the whole machine to be larger in size and power consumption, forcing the whole machine design to give up part of the weight and range compromise design during the design process. Summary of the invention

[0004] The purpose of the embodiments of the present invention is to provide a highly integrated radar device to achieve rapid tracking and searching of multiple targets while reducing the size and power consumption of the entire device.

[0005] In a first aspect, the present invention provides a highly integrated radar device, the radar device comprising an antenna extension and a wave control channel signal processing extension, the antenna extension comprising a radar antenna array, the radar antenna array comprising a plurality of antenna units, the wave control channel signal processing extension comprising a plurality of chips integrated on a signal processing board;

[0006] The wave control channel signal processing extension is used to generate an excitation signal and send the excitation signal to the antenna extension, and the excitation signal includes a wave control signal for controlling the phase of each antenna unit;

[0007] The antenna extension adjusts the phase under the control of the wave control signal and realizes the external radiation of the excitation signal;

[0008] The antenna extension is also used to receive the echo signal reflected back by the excitation signal after encountering the target object, and send the echo signal to the wave control channel signal processing extension;

[0009] The wave control channel signal processor is also used to process the echo signal to obtain the position information of the target object.

[0010] In an optional embodiment, the antenna extension includes an antenna board and a summator, the antenna board includes an antenna microwave board and a radar antenna array arranged on the antenna microwave board, and the multiple echo signals received by the multiple antenna units in the radar antenna array are divided into multiple quadrants;

[0011] The summator is used to process the multiple echo signals received from the multiple antenna units to obtain sum and difference signals, wherein the sum and difference signals include sum signals and difference signals, and the difference signals include azimuth difference signals and elevation difference signals;

[0012] The adder and subtractor are further used to send the excitation signal received from the wave control channel signal processor to each of the antenna units.

[0013] In an optional embodiment, the plurality of chips include a processor chip, a baseband chip and a channel chip;

[0014] The processor chip is used to generate an excitation signal and send the excitation signal to the baseband chip;

[0015] The baseband chip is used to perform up-conversion processing on the excitation signal to obtain an intermediate frequency excitation signal, and send the intermediate frequency excitation signal to the channel chip;

[0016] The channel chip is used to perform up-conversion processing on the intermediate frequency excitation signal to obtain a high frequency excitation signal, and send the high frequency excitation signal to the antenna extension, and is also used to receive the echo signal returned by the antenna extension, perform down-conversion processing on the echo signal to obtain an intermediate frequency echo signal, and send the intermediate frequency echo signal to the baseband chip;

[0017] The baseband chip is also used to demodulate the intermediate frequency echo signal to obtain a baseband signal, and send the baseband signal to the processor chip;

[0018] The processor chip is also used to analyze and process the baseband signal.

[0019] In an optional embodiment, the channel chip includes a signal generating module and a signal processing module;

[0020] The signal generating module is used to generate a local oscillator signal and transmit the local oscillator signal to the signal processing module;

[0021] The signal processing module is used to perform up-conversion processing on the received intermediate frequency excitation signal based on the local oscillator signal, or to perform down-conversion processing on the received echo signal.

[0022] In an optional implementation, the signal processing module includes a first receiving circuit, a second receiving circuit, a third receiving circuit and a transmitting circuit;

[0023] The first receiving circuit, the second receiving circuit, the third receiving circuit and the transmitting circuit respectively include a mixer;

[0024] The first receiving circuit receives the sum signal sent from the summator, and performs up-conversion processing on the sum signal based on the local oscillator signal through the mixer;

[0025] The second receiving circuit receives the azimuth difference signal sent from the summator, and performs up-conversion processing on the azimuth difference signal based on the local oscillator signal through the mixer;

[0026] The third receiving circuit receives the pitch difference signal sent from the summator, and performs up-conversion processing on the pitch difference signal based on the local oscillator signal through the mixer;

[0027] The transmitting circuit receives an intermediate frequency excitation signal sent from the baseband chip, and performs down-conversion processing on the excitation signal based on the local oscillator signal through the mixer.

[0028] In an optional implementation, the processor chip is further used for:

[0029] Acquire the real-time disturbance angular velocity of the aircraft detected by the sensor, and calculate the compensation control amount based on the pre-established relationship between the disturbance angular velocity and the aircraft motion;

[0030] The actuator of the aircraft is controlled based on the compensation control amount to eliminate the disturbance effect.

[0031] In an optional embodiment, the baseband chip includes a first baseband chip and a second baseband chip;

[0032] The first baseband chip is used to demodulate the sum signal and the azimuth difference signal sent by the channel chip;

[0033] The second baseband chip is used to demodulate the pitch difference signal sent by the channel chip.

[0034] In an optional implementation, the wave control channel signal processor further includes an integrated power chip, and the power chip includes an on-board power supply and an antenna power supply;

[0035] The on-board power supply is used to convert the external DC power supply into the power required by the processor chip, baseband chip and channel chip;

[0036] The antenna power supply is used to convert an external DC power supply into the power required by the radar antenna array, and transmit it to the radar antenna array through the antenna board power supply interface.

[0037] In an optional implementation, the wave control channel signal processor further includes a storage chip, a transceiver and a receiver;

[0038] The storage chip is connected to the processor chip and is used to store information sent by the processor chip;

[0039] The transceiver is connected between the processor chip and the external data recorder to realize information transmission between the processor chip and the external data recorder;

[0040] The receiver is connected between the processor chip and the external integrated machine to realize information transmission between the processor chip and the external integrated machine.

[0041] In an optional embodiment, the radar device further includes a base, and the wave control channel signal processing extension and the antenna extension are sequentially stacked and assembled on the base.

[0042] The beneficial effects of the embodiments of the present invention include, for example:

[0043] The present invention provides a highly integrated radar device, including an antenna extension and a wave control channel signal processing extension, wherein the antenna extension includes a radar antenna array, the radar antenna array includes multiple antenna units, and the wave control channel signal processing extension includes multiple chips integrated on a signal processing board. The wave control channel signal processing extension is used to generate an excitation signal including a wave control signal for controlling the phase of each of the antenna units. The antenna extension adjusts the phase under the control of the wave control signal, realizes the external radiation of the excitation signal, and is used to receive the echo signal reflected back after the excitation signal encounters a target object. The wave control channel signal processing extension is also used to process the echo signal to obtain the position information of the target object. In this solution, the antenna extension adopts phased array technology, which can realize electronic antenna control and can realize multi-target tracking and searching, and the wave control channel signal processing extension adopts a multi-chip integrated structure, which can greatly reduce the volume and power consumption. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments of the present invention are briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without creative work.

[0045] Figure 1One of the structural block diagrams of a highly integrated radar device provided by an embodiment of the present invention;

[0046] Figure 2 The second structural block diagram of the highly integrated radar device provided by the embodiment of the present invention;

[0047] Figure 3 The third structural block diagram of the highly integrated radar device provided by the embodiment of the present invention;

[0048] Figure 4 A schematic diagram of the structure of a highly integrated radar device provided by an embodiment of the present invention;

[0049] Figure 5 An exploded schematic diagram of a highly integrated radar device provided by an embodiment of the present invention;

[0050] Figure 6 A circuit diagram of a channel chip provided in an embodiment of the present invention. DETAILED DESCRIPTION

[0051] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0052] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention. 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.

[0053] It should be noted that similar reference numerals and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings. At the same time, in the description of the present invention, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0054] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0055] In the description of the present invention, it should be noted that the terms "upper", "lower", "inside", "outside", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, or are directions or positional relationships in which the product of the invention is usually placed when in use. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0056] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "disposed" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0057] Some embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. In the absence of conflict, the following embodiments and features in the embodiments can be combined with each other.

[0058] See also Figure 1 , is a structural block diagram of a highly integrated radar device provided by an embodiment of the present invention, the radar device includes an antenna extension and a beam control channel signal processing extension, the antenna extension and the beam control channel signal processing extension are connected through interfaces such as a power supply interface and a communication interface. Among them, the antenna extension includes a radar antenna array, the radar antenna array includes multiple antenna units, and the beam control channel signal processing extension includes multiple chips integrated on a signal processing board.

[0059] The wave control channel signal processor is used to generate an excitation signal, which is used to detect the location information of the target object. The wave control channel signal processor sends the generated excitation signal to the antenna extension. The excitation signal includes a wave control signal for controlling the phase of each antenna unit.

[0060] The antenna extension adjusts the phase under the control of the wave control signal, and realizes the external radiation of the excitation signal after adjusting to the corresponding phase. In this way, the effect of directional radiation of the excitation signal under the processing of the wave control signal is achieved.

[0061] After the excitation signal radiated outward encounters the target object, the excitation signal will be reflected by the target object to generate a reflected echo signal. Therefore, the antenna extension can also be used to receive the echo signal reflected back by the excitation signal after encountering the target object, and send the echo signal to the wave control channel signal processing extension.

[0062] The wave control channel signal processor is also used to process the echo signal to obtain the location information of the target object, thereby realizing the tracking and positioning of the target object.

[0063] The highly integrated radar device provided in this embodiment has an antenna extension including multiple antenna units, and adopts phased array technology. The electronic signal control method can be used to control the phase of the antenna unit, thereby controlling the direction of the beam, and can quickly respond to the beam pointing requirements. At the same time, it can traverse and search and track multiple targets. Compared with the traditional method that requires a servo frame to achieve antenna control, it has the advantages of fast response speed and multi-target search and tracking. In addition, in this embodiment, the radar device only includes two extensions, namely the antenna extension and the wave control channel signal processing extension. Multiple chips are integrated on the wave control channel signal processing extension, and the integrated multi-chips are used to complete the functions of multiple extensions in the traditional method, which greatly reduces the volume and power consumption of the radar device. The whole machine can save more space and weight, leaving a certain amount of redundant mass and space for other designs of the whole machine.

[0064] Moreover, since everything is highly integrated on a chip, the requirements for design and assembly processes are greatly reduced.

[0065] See also Figure 2 In this embodiment, the antenna extension includes an antenna board and a summator, the antenna board includes an antenna microwave board and a radar antenna array arranged on the antenna microwave board, and the multiple echo signals received by the multiple antenna units in the radar antenna array are divided into multiple quadrants.

[0066] The summator is used to process multiple echo signals received from multiple antenna units to obtain sum and difference signals, which include sum signals and difference signals, wherein the difference signals include azimuth difference signals and elevation difference signals.

[0067] In addition, the adder and the subtractor are also used to send the excitation signal received from the wave control channel signal processor to each antenna unit.

[0068] Please refer to Figure 3 Each antenna unit in the radar antenna array can be a 16-channel T / R (transmit / receive) chip, and each antenna unit can transmit signals and receive echo signals. The 16-channel T / R chip is a highly integrated electronic component with a package size of 10mmx10mm, which helps to reduce the overall size of the radar equipment.

[0069] The multiple echo signals received by the multiple antenna units are divided into multiple quadrants, for example, into quadrant 1, quadrant 2, quadrant 3 or quadrant 4.

[0070] The summator can process the received echo signals of multiple quadrants to obtain a sum signal. Specifically, the summator includes a hybrid coupler, through which the echo signals from different quadrants are added. For example, the echo signals from opposite quadrants are added, such as adding the echo signals of quadrant 1 and quadrant 3, and adding the echo signals of quadrant 2 and quadrant 4. The signal obtained by adding is the sum signal, which is mainly used to detect the overall echo intensity of the target object.

[0071] In addition, the summator can also be used to process the received echo signals from different quadrants to obtain a difference signal. Specifically, the summator can subtract the echo signals from opposite quadrants through an internal hybrid coupler, for example, subtract the echo signal from quadrant 1 from the echo signal from quadrant 3, and subtract the echo signals from quadrant 2 from quadrant 4. The signal after subtraction is the difference signal, which represents the difference between the signals. The obtained difference signal is mainly used to determine the direction and position of the target object.

[0072] Please refer to Figure 4 and Figure 5 In this embodiment, the radar device includes a base, and the wave control channel signal processing extension and the antenna extension are sequentially stacked and assembled on the base. Figure 5 As shown in the figure, from top to bottom it includes an antenna plate, a summator, a wave control channel signal processor, and a base.

[0073] Among them, the antenna board includes an antenna microwave board and a radar antenna array arranged on the antenna microwave board, and the sum and difference device is also arranged on the circuit board. The wave control channel signal processing extension includes a signal processing board and multiple chips arranged on the signal processing board. From top to bottom, the antenna microwave board, the circuit board (the sum and difference device is arranged thereon), the signal processing board and the base are assembled together in sequence, and the radar antenna array is arranged on the antenna microwave board, the sum and difference device is arranged on the circuit board, and multiple chips are integrated on the signal processing board. The base plays a supporting role for multiple components thereon. In this way, the radar equipment as a whole presents a cylindrical structure with a compact overall structure, high integration and small size.

[0074] In this embodiment, the multiple chips included in the wave control channel signal processor include a processor chip, a baseband chip and a channel chip, wherein the baseband chip is connected to the processor chip, and the channel chip is connected to the baseband chip.

[0075] The processor chip is used to generate an excitation signal and send the excitation signal to the baseband chip. The baseband chip is used to up-convert the excitation signal to obtain an intermediate frequency excitation signal and send the intermediate frequency excitation signal to the channel chip. The channel chip is used to up-convert the intermediate frequency excitation signal to obtain a high frequency excitation signal and send the high frequency excitation signal to the antenna extension.

[0076] In addition, the antenna extension is used to receive the echo signal returned by the antenna extension, perform down-conversion processing on the echo signal to obtain an intermediate frequency echo signal, and send the intermediate frequency echo signal to the baseband chip.

[0077] The baseband chip is also used to demodulate the intermediate frequency echo signal to obtain a baseband signal, and send the baseband signal to the processor chip. The processor chip is also used to analyze and process the baseband signal. Then, based on the results of the analysis and processing, information such as the location of the target object is obtained.

[0078] In this embodiment, the processor chip may be a programmable SOC. In addition to transmitting excitation signals, sum signals, difference signals, etc., the processor chip and the baseband chip may also exchange status information and information.

[0079] The radar device provided in this embodiment can be used in application scenarios such as aircraft navigation and control. The aircraft may encounter various disturbances during flight, such as airflow disturbances, engine disturbances, control surface deflection, etc. How to reduce the impact of these disturbances on the aircraft's attitude is particularly important for improving the stability and safety of the aircraft.

[0080] Based on this, in this embodiment, the processor chip can also obtain the real-time angular velocity data of the aircraft detected by the sensor, and determine the disturbance angular velocity in combination with the pre-established relationship between the angular velocity data and the operation of the aircraft, calculate the compensation control amount based on the disturbance angular velocity, and control the actuator of the aircraft based on the compensation control amount to eliminate the disturbance effect.

[0081] The sensor may be a gyroscope or other device, and the measured angular velocity data includes angular velocity components of three axes, including pitch component, yaw component and roll component. A disturbance model may be constructed in advance, and the disturbance model is used to describe angular velocity disturbances caused by aerodynamic disturbances, engine disturbances, control surface disturbances, etc. The disturbance model may reflect the relationship between angular velocity data and aircraft operation.

[0082] The measured angular velocity data can be filtered and preprocessed to eliminate noise and outliers to ensure the accuracy of the data. The disturbed angular velocity of the aircraft can be obtained by using the filtered angular velocity data in combination with the pre-built disturbance model. Then, the disturbed angular velocity is compensated by using PID control, fuzzy logic control or other control algorithms to obtain the compensation control amount. The compensation control amount is applied to the actuator of the aircraft, such as the control system, to eliminate or reduce the influence of the disturbance on the attitude of the aircraft.

[0083] In this embodiment, the compensation of the disturbance angular velocity is achieved based on the processing of the processor chip, so that the aircraft can quickly respond to the direction of the beam without any delay of the mechanical structure.

[0084] In this embodiment, please refer to Figure 6 The channel chip includes a signal generation module and a signal processing module. The signal generation module is used to generate a local oscillator signal and transmit the local oscillator signal to the signal processing module. The signal processing module is used to perform up-conversion processing on the received intermediate frequency excitation signal based on the local oscillator signal, or perform down-conversion processing on the received echo signal.

[0085] The signal generation module includes a pulse Doppler (PD) module, a filter, and a voltage-controlled oscillator (VCO) connected in sequence. The signal generation module can be used to generate an intrinsic signal of the required frequency and transmit the local oscillator signal to each link in the signal processing module, including a transmitting link and a receiving link. Among them, the transmitting link refers to the link that processes the signal received by the baseband chip, and the receiving link refers to the link that processes the signal received from the summator. In this way, the signal processing module can realize up-conversion or down-conversion processing of the received signal based on the local oscillator signal.

[0086] In this embodiment, the signal processing module includes a first receiving circuit, a second receiving circuit, a third receiving circuit and a transmitting circuit.

[0087] The first receiving circuit, the second receiving circuit, the third receiving circuit and the transmitting circuit respectively include a mixer.

[0088] The first receiving circuit receives the sum signal sent from the summator and subtractor, and performs up-conversion processing on the sum signal based on the local oscillator signal through the mixer.

[0089] The second receiving circuit receives the azimuth difference signal sent from the sum-differentiator, and performs up-conversion processing on the azimuth difference signal based on the local oscillation signal through the mixer.

[0090] The third receiving circuit receives the pitch difference signal sent from the sum-differentiator, and performs up-conversion processing on the pitch difference signal based on the local oscillator signal through the mixer.

[0091] The transmitting circuit receives the intermediate frequency excitation signal sent from the baseband chip, and performs down-conversion processing on the excitation signal based on the local oscillator signal through a mixer.

[0092] In this embodiment, when the first receiving circuit, the second receiving circuit and the third receiving circuit respectively perform up-conversion processing on the sum signal, the azimuth difference signal and the elevation difference signal, the sum signal, the azimuth difference signal and the elevation difference signal may be firstly subjected to amplitude modulation, frequency modulation or phase modulation, and the modulated signals are collectively referred to as baseband signals.

[0093] The baseband signal and the intrinsic signal are input into the mixer together. The mixer can multiply the two input signals to generate sum frequency and difference frequency components. Then the required sum frequency component is selected through the bandpass filter, and the unnecessary difference frequency component and other spurious frequency components are filtered out. Finally, the filtered signal can be amplified to obtain the required up-converted signal.

[0094] In addition, when the transmitting circuit performs down-conversion processing on the intermediate frequency excitation signal, similarly, the excitation signal and the intrinsic signal are input into the mixer, and the mixer multiplies the excitation signal and the intrinsic signal to generate sum frequency and difference frequency components. Then, a filter is used to select the required difference frequency component, such as the intermediate frequency or baseband signal, and the baseband signal can be selected here. On this basis, the filtered signal can also be amplified and the amplitude can be adjusted to meet the processing requirements. The amplified signal is demodulated to restore the original baseband signal. In this way, the down-conversion processing of the intermediate frequency excitation signal is realized.

[0095] In this embodiment, the baseband chip includes a first baseband chip ( Figure 3 Baseband chip 1) and second baseband chip ( Figure 3 The first baseband chip is used to demodulate the sum signal and the azimuth difference signal sent by the channel chip, and the second baseband chip is used to demodulate the pitch difference signal sent by the channel chip.

[0096] In addition, the wave control channel signal processor also includes an integrated power chip, which includes an on-board power supply and an antenna power supply. The on-board power supply is used to convert the external DC power supply into the power required by the processor chip, baseband chip and channel chip. The antenna power supply is used to convert the external DC power supply into the power required by the radar antenna array and transmit it to the radar antenna array through the antenna board power interface.

[0097] In this embodiment, in addition to integrating the channel chip into the signal processing board to reduce the overall volume of the radar equipment, the traditional power extension is improved to chip integration, and the power chip is integrated into the signal processing board, further reducing the volume and power consumption.

[0098] In addition, in this embodiment, the wave control channel information processor also includes a storage chip, a transceiver and a receiver. Among them, the storage chip is connected to the processor chip and is used to store information sent by the processor chip, such as processing result information.

[0099] The transceiver is connected between the processor chip and the external data recorder to realize information transmission between the processor chip and the external data recorder. The receiver is connected between the processor chip and the external integrated machine to realize information transmission between the processor chip and the external integrated machine.

[0100] The memory chip may include multiple ones, such as QSPI FLASH, DDR3, etc. The transceiver may be, for example, an Ethernet transceiver, and the receiver may be, for example, a low-voltage high-speed four-way splitter receiver.

[0101] Of course, this embodiment does not limit the specific models of storage chips, transceivers, receivers, etc., which can be determined based on actual needs.

[0102] In addition, the radar device also includes multiple interfaces, such as the interface between the processor chip and the microwave antenna board, the interface between the processor chip and the channel chip, etc., so as to realize the connection between the various chips.

[0103] In the radar equipment provided in this embodiment, the antenna extension is designed and produced using active phased array technology, so that the antenna unit can be controlled by electronic control, thereby realizing beam pointing control, realizing multi-target tracking and searching, and avoiding problems such as slow control response speed in traditional mechanical control methods. In addition, the traditional channel extension, power extension, etc. are improved to a chip design, and the channel chip and power chip are integrated on the signal processing board, which greatly reduces the overall volume and power consumption of the radar equipment compared to the extension system built with discrete devices or independently designed extension systems in the traditional method.

[0104] Since the radar devices in this embodiment are all highly integrated chip designs, the design requirements and assembly processes are greatly reduced. Designers only need to focus on the design requirements of functional performance, and the requirements for process structure design are greatly reduced.

[0105] In this embodiment, based on the integrated design, the signal processing work is concentrated on the processor chip, thus saving a lot of single board debugging work, which is more convenient and quick.

[0106] In summary, the highly integrated radar device provided by the embodiment of the present invention includes an antenna extension and a wave control channel signal processing extension, the antenna extension includes a radar antenna array, the radar antenna array includes multiple antenna units, and the wave control channel signal processing extension includes multiple chips integrated on the signal processing board. The wave control channel signal processing extension is used to generate an excitation signal including a wave control signal for controlling the phase of each of the antenna units. The antenna extension adjusts the phase under the control of the wave control signal, realizes the external radiation of the excitation signal, and is used to receive the echo signal reflected back after the excitation signal encounters the target object. The wave control channel signal processing extension is also used to process the echo signal to obtain the location information of the target object. In this solution, the antenna extension adopts phased array technology, which can realize electronic antenna control and can realize multi-target tracking and searching, and the wave control channel signal processing extension adopts a multi-chip integrated structure, which can greatly reduce the volume and power consumption.

[0107] The above description is only an embodiment of the present invention and is not intended to limit the protection scope of the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A highly integrated radar device, characterized in that: The radar device includes an antenna extension and a wave control channel signal processing extension, the antenna extension includes a radar antenna array, the radar antenna array includes a plurality of antenna units, and the wave control channel signal processing extension includes a plurality of chips integrated on a signal processing board; The wave control channel signal processing extension is used to generate an excitation signal and send the excitation signal to the antenna extension, and the excitation signal includes a wave control signal for controlling the phase of each antenna unit; The antenna extension adjusts the phase under the control of the wave control signal and realizes the external radiation of the excitation signal; The antenna extension is also used to receive the echo signal reflected back by the excitation signal after encountering the target object, and send the echo signal to the wave control channel signal processing extension; The wave control channel signal processor is also used to process the echo signal to obtain the position information of the target object.

2. The highly integrated radar device according to claim 1, characterized in that: The antenna extension includes an antenna board and a summator, the antenna board includes an antenna microwave board and a radar antenna array arranged on the antenna microwave board, and the multiple echo signals received by the multiple antenna units in the radar antenna array are divided into multiple quadrants; The summator is used to process the multiple echo signals received from the multiple antenna units to obtain sum and difference signals, wherein the sum and difference signals include sum signals and difference signals, and the difference signals include azimuth difference signals and elevation difference signals; The adder and subtractor are further used to send the excitation signal received from the wave control channel signal processor to each of the antenna units.

3. The highly integrated radar device according to claim 2, characterized in that: The multiple chips include a processor chip, a baseband chip and a channel chip; The processor chip is used to generate an excitation signal and send the excitation signal to the baseband chip; The baseband chip is used to perform up-conversion processing on the excitation signal to obtain an intermediate frequency excitation signal, and send the intermediate frequency excitation signal to the channel chip; The channel chip is used to perform up-conversion processing on the intermediate frequency excitation signal to obtain a high frequency excitation signal, and send the high frequency excitation signal to the antenna extension, and is also used to receive the echo signal returned by the antenna extension, perform down-conversion processing on the echo signal to obtain an intermediate frequency echo signal, and send the intermediate frequency echo signal to the baseband chip; The baseband chip is also used to demodulate the intermediate frequency echo signal to obtain a baseband signal, and send the baseband signal to the processor chip; The processor chip is also used to analyze and process the baseband signal.

4. The highly integrated radar device according to claim 3, characterized in that: The channel chip includes a signal generating module and a signal processing module; The signal generating module is used to generate a local oscillator signal and transmit the local oscillator signal to the signal processing module; The signal processing module is used to perform up-conversion processing on the received intermediate frequency excitation signal based on the local oscillator signal, or to perform down-conversion processing on the received echo signal.

5. The highly integrated radar device according to claim 4, characterized in that: The signal processing module includes a first receiving circuit, a second receiving circuit, a third receiving circuit and a transmitting circuit; The first receiving circuit, the second receiving circuit, the third receiving circuit and the transmitting circuit respectively include a mixer; The first receiving circuit receives the sum signal sent from the summator, and performs up-conversion processing on the sum signal based on the local oscillator signal through the mixer; The second receiving circuit receives the azimuth difference signal sent from the summator, and performs up-conversion processing on the azimuth difference signal based on the local oscillator signal through the mixer; The third receiving circuit receives the pitch difference signal sent from the summator, and performs up-conversion processing on the pitch difference signal based on the local oscillator signal through the mixer; The transmitting circuit receives an intermediate frequency excitation signal sent from the baseband chip, and performs down-conversion processing on the excitation signal based on the local oscillator signal through the mixer.

6. The highly integrated radar device according to claim 3, characterized in that: The processor chip is also used for: Acquire the real-time disturbance angular velocity of the aircraft detected by the sensor, and calculate the compensation control amount based on the pre-established relationship between the disturbance angular velocity and the aircraft motion; The actuator of the aircraft is controlled based on the compensation control amount to eliminate the disturbance effect.

7. The highly integrated radar device according to claim 3, characterized in that: The baseband chip includes a first baseband chip and a second baseband chip; The first baseband chip is used to demodulate the sum signal and the azimuth difference signal sent by the channel chip; The second baseband chip is used to demodulate the pitch difference signal sent by the channel chip.

8. The highly integrated radar device according to claim 3, characterized in that: The wave control channel signal processor also includes an integrated power chip, and the power chip includes an on-board power supply and an antenna power supply; The on-board power supply is used to convert the external DC power supply into the power required by the processor chip, baseband chip and channel chip; The antenna power supply is used to convert an external DC power supply into the power required by the radar antenna array, and transmit it to the radar antenna array through the antenna board power supply interface.

9. The highly integrated radar device according to claim 3, characterized in that: The wave control channel signal processor also includes a storage chip, a transceiver and a receiver; The storage chip is connected to the processor chip and is used to store information sent by the processor chip; The transceiver is connected between the processor chip and the external data recorder to realize information transmission between the processor chip and the external data recorder; The receiver is connected between the processor chip and the external integrated machine to realize information transmission between the processor chip and the external integrated machine.

10. The highly integrated radar device according to claim 1, characterized in that: The radar device also includes a base, and the wave control channel signal processing extension and the antenna extension are sequentially stacked and assembled on the base.

Images