Measuring radar system and measuring method

Abstract

The invention discloses a measurement radar system and a measurement method, and relates to the technical field of electromagnetic scattering measurement. The measuring radar system comprises a signal processing assembly, a frequency conversion assembly and a signal transmitting and receiving assembly of multiple wave bands. The signal processing assembly is configured to send frequency modulation instructions to the frequency conversion assembly for multiple times according to multiple working bands configured by a user and working frequency point information in each working band; the frequency conversion assembly is configured to generate a detection signal of a specified frequency point according to a frequency modulation instruction; according to the control identification code, the detection signal is sent to the signal transceiving assembly of the corresponding wave band; the multi-band signal transmit-receive assembly is configured to transmit the detection signal after receiving the detection signal from the frequency conversion assembly, and receive an echo signal generated by the detection signal. Through the system, more reliable and more efficient target electromagnetic scattering characteristic measurement can be realized with lower hardware cost.

Description

Technical Field

[0001] The present invention relates to the technical field of electromagnetic scattering characteristic measurement, and in particular to a measurement radar system and a measurement method. Background Art

[0002] As the demand for target characteristic measurement increases, the requirements for the working efficiency and reliability of measurement radar systems also increase significantly.

[0003] In the related art, when measuring echo signals of multiple bands and multiple frequencies based on a measurement radar system, the following measurement schemes are usually adopted: first, when measuring echo signals of different frequency bands, the power amplifier and the receiving front end are manually replaced to realize the measurement of echo signals of different frequency bands; second, by setting multiple sets of frequency conversion components, the measurement of multiple bands and multiple frequencies is realized. Although this method can improve the measurement efficiency, it increases the hardware cost. Third, the traditional frequency hopping method is adopted, that is, the switching of bands and frequencies is controlled by time-sharing. The first method cannot realize simultaneous measurement of multiple bands, the test efficiency is low, and the change of test state is difficult to ensure the consistency and coherence of the test data of each frequency band. With the third method, although the bands can be switched sequentially, several bands cannot be selected arbitrarily, which has great limitations. In view of this, how to achieve more reliable and efficient target characteristic measurement at a lower hardware cost is an urgent problem to be solved. Summary of the invention

[0004] The present invention provides a measurement radar system and a measurement method, which can solve the problems of low target characteristic measurement efficiency, low reliability, high hardware cost, etc. existing in the related art.

[0005] On the one hand, a measurement radar system is provided, which includes a signal processing component, a frequency conversion component, and a signal transceiver component of multiple bands; the signal processing component is configured to: send frequency modulation instructions to the frequency conversion component multiple times according to multiple working bands configured by the user and the working frequency point information in each working band, wherein the frequency modulation instruction carries the indication information of the specified frequency point and the control identification code, and the control identification code is used to indicate the transceiver component of the band where the specified frequency point is located; the frequency conversion component is configured to: generate a detection signal of the specified frequency point according to the frequency modulation instruction; and send the detection signal to the signal transceiver component of the corresponding band according to the control identification code; the signal transceiver component of multiple bands is configured to: after receiving the detection signal from the frequency conversion component, transmit the detection signal and receive the echo signal generated by the detection signal.

[0006] Optionally, the signal processing component sends frequency modulation instructions to the frequency conversion component multiple times according to multiple working bands configured by the user and the working frequency point information in each working band, including: when a frame trigger signal is detected, sending a frequency modulation instruction to the frequency conversion component, and updating the count value of the band number counter and the count value of the first frequency point number counter; iteratively executing the step of sending the frequency modulation instruction and the step of updating the count value until the count value of the band number counter is equal to the number of working bands configured by the user, and the count value of the first frequency point number counter is equal to the total number of working frequency points configured by the user.

[0007] Optionally, the signal processing component sends a frequency modulation instruction to the frequency conversion component, including: sending a frequency modulation instruction for the current working band to the frequency conversion component according to the working frequency point information in the current working band, and updating the count value of the second frequency point number counter corresponding to the current working band; when the count value of the second frequency point number counter corresponding to the current working band is equal to the total number of frequencies in the working band configured by the user, executing the step of sending the frequency modulation instruction and the step of updating the count value of the second frequency point number counter for the next working band until the measurement of all working bands is completed.

[0008] Optionally, the working frequency information in each working band includes a starting frequency, a frequency step value, an ending frequency, and a total number of frequencies; or, the working frequency information in each working band includes multiple preset frequencies, and a total number of frequencies.

[0009] Optionally, the frequency modulation instruction includes a frequency configuration instruction and a first frequency conversion control instruction, and the signal processing component sends the frequency modulation instruction to the frequency conversion component including: after detecting a frame trigger signal, the signal processing component sends a frequency configuration instruction to the frequency conversion component, so that the frequency conversion component determines the designated frequency according to the designated frequency information carried by the frequency configuration instruction; after detecting a transmission trigger signal, the signal processing component sends a first frequency conversion control instruction to the frequency conversion component, so that the frequency conversion component converts the intermediate frequency signal carried by the first frequency conversion control instruction to the designated frequency, wherein the generation time of the transmission trigger signal is after the frame trigger signal.

[0010] Optionally, the signal processing component is also configured to: after detecting an acquisition trigger signal, transmit a second frequency conversion control instruction to the frequency conversion component, so that the frequency conversion component down-converts the received echo signal according to the second frequency conversion control instruction; and receive the signal obtained by the down-conversion from the frequency conversion component.

[0011] Optionally, the signal processing component is further configured to: generate the frame trigger signal according to an external trigger signal or an internal trigger signal; generate a pulse trigger signal according to the frame trigger signal; generate the emission trigger signal and the acquisition trigger signal according to the pulse trigger signal.

[0012] Optionally, the signal transceiver component of each band in the multiple bands includes a receiving unit and a transmitting unit, the receiving unit includes a receiving antenna and a receiving front-end device, and the transmitting unit includes a power amplifier and a transmitting antenna.

[0013] Optionally, the system further comprises a power management component, and the power management component is used to supply power to the system.

[0014] On the other hand, a measurement method is provided. The method is implemented based on the measurement radar system as described above.

[0015] The technical solution provided by the present invention can at least bring about the following beneficial effects: on the one hand, the signal processing component generates a frequency modulation instruction according to the operating frequency and operating frequency point information configured by the user, and the frequency conversion component generates a detection signal of the specified frequency point according to the frequency modulation instruction, which can automatically, efficiently and reliably realize multi-band and multi-frequency point signal measurement and flexibly meet the personalized user measurement needs; on the other hand, by carrying a control identification code in the frequency modulation instruction and sending the detection signal to the transceiver component of the corresponding band according to the control identification code, the frequency conversion requirements of the transceiver components of multiple bands can be met through a set of frequency conversion components, thereby greatly improving the test efficiency while reducing the required hardware cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. 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.

[0017] Figure 1 is a schematic structural diagram of a measurement radar system provided by an embodiment of the present invention;

[0018] Figure 2 is a structural schematic diagram of a measurement radar system provided by another embodiment of the present invention;

[0019] Figure 3 This is a measurement timing diagram provided by an embodiment of the present invention;

[0020] Figure 4 is a schematic diagram of a control link of a measurement radar system provided by an embodiment of the present invention;

[0021] Figure 5 It is a flow chart of a measurement method provided by an embodiment of the present invention. DETAILED DESCRIPTION

[0022] 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, rather than all the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0023] In order to solve the problems of low target characteristic measurement efficiency, low reliability, high hardware cost, etc. existing in the related art, the present invention provides a measurement radar system and a measurement method, which can achieve more reliable and more efficient target electromagnetic scattering characteristic measurement at a lower hardware cost.

[0024] Figure 1 FIG. 1 is a schematic diagram of the structure of a measurement radar system provided by an embodiment of the present invention. Figure 1 As shown, the measurement radar system 10 includes: a signal processing component 11, a frequency conversion component 12, and signal transceiver components of multiple bands.

[0025] The signal processing component 11 is configured to send frequency modulation instructions to the frequency conversion component 12 multiple times according to the multiple working bands configured by the user and the working frequency point information in each working band.

[0026] The frequency modulation instruction carries the indication information of the designated frequency point and the control identification code. The indication information of the designated frequency point is used to indicate the specific frequency point to be switched to, and the control identification code is used to indicate the signal transceiver component of the band where the designated frequency point is located.

[0027] In some examples, a band number counter and a first frequency point number counter are preset. The band number counter is used to count the number of bands that have been measured, and the first frequency point number counter is used to count all the measured frequency points. For example, assuming that band 1, band 2, and band 3 have been measured, and the number of frequency points measured under band 1 is 3, the number of frequency points measured under band 2 is 3, and the number of frequency points measured under band 3 is 5, then the count value of the band number counter is 3, and the count value of the first frequency point number counter is 11.

[0028] In the above example, the signal processing component 11 is configured to: when a frame trigger signal is detected, send a frequency modulation instruction to the frequency conversion component 12, and update the count value of the band number counter and the count value of the frequency point number counter; iteratively execute the step of sending the frequency modulation instruction and the step of updating the count value until the count value of the band number counter is equal to the number of working bands configured by the user, and the count value of the first frequency point number counter is equal to the total number of working frequency points configured by the user.

[0029] In other examples, a band number counter, a first frequency point number counter, and a plurality of second frequency point counters are pre-set. Among them, the band number counter is used to count the number of measured bands, the first frequency number counter is used to count all measured frequency points, and the second frequency point counter is used to count the measured frequency points in each band. For example, assuming that band 1 has been measured, and the number of measured frequency points in band 1 is 3, and the number of measured frequency points in band 2 is 1, then the count value of the band number counter is 2, the count value of the first frequency point number counter is 4, the count value of the second frequency point number counter corresponding to band 1 is 3, and the count value of the second frequency point number counter corresponding to band 2 is 1.

[0030] In some other examples mentioned above, the signal processing component 11 is configured to: send a frequency modulation instruction for the current working band to the frequency conversion component according to the working frequency information in the current working band, and update the count value of the second frequency point number counter corresponding to the current working band; when the count value of the second frequency point number counter corresponding to the current working band is equal to the total number of frequencies in the working band configured by the user, execute the step of sending the frequency modulation instruction and the step of updating the count value of the second frequency point number counter for the next working band until the measurement of all working bands is completed.

[0031] The user-configured working frequency information in each working band may include a starting frequency, a frequency step value, an ending frequency, and a total number of frequencies. For example, in the imaging measurement mode, when measuring each working band, the starting frequency and the frequency step value are gradually jumped to the ending frequency.

[0032] Alternatively, the operating frequency point information in each operating band configured by the user may include multiple preset frequency points and the total number of frequency points. For example, in the radar cross section (RCS) measurement mode, when measuring each operating band, switching is performed between the preset frequency points in the operating band until all the preset frequency points in the operating band are measured.

[0033] In some other examples, the frequency modulation signal includes a frequency configuration instruction and a first frequency conversion control instruction. In these examples, the signal processing component 11 is configured as follows: after detecting the frame trigger signal, the signal processing component sends the frequency configuration instruction to the frequency conversion component 12, so that the frequency conversion component determines the specified frequency according to the specified frequency information carried by the frequency configuration instruction; after detecting the transmission trigger signal, the signal processing component 11 sends the first frequency conversion control instruction to the frequency conversion component 12, so that the frequency conversion component converts the intermediate frequency signal carried by the first frequency conversion control instruction to the specified frequency. Among them, the generation time of the transmission trigger signal is after the frame trigger signal. By sending the frequency configuration instruction first, and then sending the first frequency conversion control instruction after a certain time, it can be ensured as much as possible that the frequency switching is completed before the detection signal is transmitted, thereby improving the reliability of the measurement.

[0034] In some other examples, in addition to being configured to perform the operations in the above-mentioned examples, the signal processing component 11 is also configured to: after detecting the acquisition trigger signal, transmit a second frequency conversion control instruction to the frequency conversion component so that the frequency conversion component down-converts the received echo signal according to the second frequency conversion control instruction; and receive the signal obtained by down-conversion from the frequency conversion component.

[0035] Among them, the frame trigger signal can be generated based on an external trigger signal or an internal trigger signal. After the frame trigger signal is generated, a pulse trigger signal can be generated according to the frame trigger signal; according to the pulse trigger signal, a transmission trigger signal and a collection trigger signal are generated. In specific implementation, a frame trigger signal can correspond to a frequency point, and a pulse trigger signal can correspond to a signal transmission and collection process.

[0036] For example, the target turntable will send an external trigger signal to the signal processing component 11 during the rotation process. Under the triggering of the external trigger signal, the signal processing component 11 generates a frame trigger signal, and then generates a pulse trigger signal by dividing the frame trigger signal, and then generates a transmission trigger signal and a collection trigger signal. Among them, the external trigger signal sent by the turntable can correspond to the step angle of the turntable. For example, every time the turntable rotates a step angle, an external trigger signal is sent to the signal processing component.

[0037] The frequency conversion component 12 is configured to: generate a detection signal of a specified frequency point according to the frequency modulation instruction; and send the detection signal to the signal transceiver component of the corresponding band according to the control identification code.

[0038] For example, assuming that the specified frequency information carried by the frequency modulation instruction is 1.5 GHz and the control identification code is band 1, the frequency conversion component can up-convert the intermediate frequency signal carried by the frequency modulation instruction to obtain a detection signal with a frequency of 1.5 GHz, and then send the detection signal to the signal transceiver component of band 1.

[0039] The signal generating components of multiple bands are configured to: after receiving the detection signal from the frequency conversion component, transmit the detection signal and receive the echo signal generated by the detection signal.

[0040] In some examples, the signal transceiver components of multiple bands include signal generating component 113, signal generating component 214 and signal generating component N15, wherein N is an integer greater than 2. Signal generating component 1 corresponds to band 1, signal generating component 2 corresponds to band 2, and signal generating component N corresponds to band N.

[0041] In the disclosed embodiments, the following beneficial effects can be achieved through the above measurement radar system: on the one hand, the signal processing component generates a frequency modulation instruction according to the operating frequency and operating frequency point information configured by the user, and the frequency conversion component generates a detection signal of the specified frequency point according to the frequency modulation instruction, which can automatically, efficiently and reliably realize multi-band and multi-frequency point signal measurement and flexibly meet the personalized user measurement needs; on the other hand, by carrying a control identification code in the frequency modulation instruction and sending the detection signal to the transceiver component of the corresponding band according to the control identification code, the frequency conversion requirements of the transceiver components of multiple bands can be met through a set of frequency conversion components, thereby greatly improving the test efficiency while reducing the required hardware cost.

[0042] Figure 2 FIG. 1 is a schematic diagram of the structure of a measurement radar system provided by another embodiment of the present invention. Figure 2 As shown, the measurement radar system 20 includes a signal processing component 11 , a frequency conversion component 12 , N-band signal transceiver components, and a power management component 16 .

[0043] The signal processing component 11 is configured to send frequency modulation instructions to the frequency conversion component multiple times according to the multiple working bands configured by the user and the working frequency point information in each working band. The frequency modulation instructions carry the indication information of the designated frequency point and the control identification code.

[0044] In some examples, the signal processing component 11 is based on Figure 3 The working sequence shown generates multiple trigger signals in sequence, and under the triggering of the multiple trigger signals, the process of sending the frequency modulation instruction to the frequency conversion component is executed. For how the signal processing component 11 specifically sends the frequency modulation instruction to the frequency conversion component, reference can be made to the relevant description of the above embodiment.

[0045] The frequency conversion component 12 is configured to generate a detection signal of a specified frequency point according to the frequency modulation instruction; and send the detection signal to the signal transceiver component of the corresponding band according to the control identification code.

[0046] The signal transceiver component of each band in the N bands includes a receiving unit and a transmitting unit. The receiving unit includes a receiving antenna and a receiving front-end device, and the transmitting unit includes a power amplifier and a transmitting antenna.

[0047] For example, the signal transceiver component 113 includes a power amplifier 1131, a transmitting antenna 1132, a receiving front end 1133, and a receiving antenna 1134; the signal transceiver component 214 includes a power amplifier 2141, a transmitting antenna 2142, a receiving front end 2143, and a receiving antenna 2144; the signal transceiver component N15 includes a power amplifier N151, a transmitting antenna N152, a receiving front end N153, and a receiving antenna N154.

[0048] In some examples, 8 bands of signal transceiver components are set, and the corresponding bands are specifically 1-2GHz, 2-4GHz, 4-6GHz, 6-8GHz, 8-10GHz, 10-12GHz, 12-15GHz, and 15-18GHz. In the signal transceiver component of each band, each transmitting antenna is equipped with a power amplifier, and each receiving antenna is equipped with a receiving front end. At the same time, the power amplifier and the receiving front end are equipped with a polarization switch. In specific implementation, the frequency band and polarization switch can be switched by program control to achieve simultaneous measurement of multiple bands.

[0049] In some of the above examples, after the intermediate frequency signal generated by the signal processing component is input to the frequency conversion component, the frequency conversion component up-converts the intermediate frequency signal to obtain a detection signal of a specified frequency point, and then transmits the detection signal through the power amplifier and the transmitting antenna in the signal transceiver component indicated by the control identification code. After that, the echo signal generated by the detection signal is collected by the receiving antenna and the receiving front end, and then the echo signal is down-converted by the frequency conversion component, and then the echo signal after down-conversion is sent to the signal processing component.

[0050] In some of the above examples, considering that 8 sets of signal transceiver components correspond to a large number of control lines, one set of signal processing components may be difficult to meet the use requirements, and if multiple sets of signal processing components are set, the timing may be out of sync. Therefore, in these examples, the system also includes an expansion control board 17. Figure 4 As shown, the signal processing component can be connected to the frequency conversion component through an interface, and the frequency conversion component can be connected to the power amplifiers (such as power amplifier 1 131, power amplifier N 151) and receiving front ends (such as receiving front ends 1 133, receiving front ends N 153) in 8 sets of signal transceiver components through an expansion control board, so as to control the 8 sets of signal transceiver components based on the control identification code.

[0051] The power management component 16 is used to supply power to the measurement radar system.

[0052] In the embodiments of the present disclosure, the following technical effects can be achieved through the above system: First, hardware costs are saved and test efficiency is greatly improved; second, the number of working frequency bands and the number of working frequency points in each frequency band can be flexibly set, and human-computer interaction is good.

[0053] According to another aspect, a measurement method based on the aforementioned measurement radar system is also provided. Figure 5 The measurement method is exemplified below. Figure 5 As shown, the measuring method includes steps S51 to S54.

[0054] Step S51: deploying a measurement radar system.

[0055] In some instances, the measurement radar system is mainly composed of 8 sets of signal transceiver components, 1 set of frequency conversion components, 1 set of signal processing components, and 1 set of power management components. Among them, each set of signal transceiver components specifically includes a transmitting unit and a receiving unit. The transmitting unit includes a power amplifier and a transmitting antenna, and the receiving unit includes a receiving front end and a receiving antenna. Furthermore, the power amplifier and the receiving front end can be equipped with a polarization switch. In specific implementation, the bands of these 8 sets of signal transceiver components can be flexibly set. For example, the bands of these 8 sets of signal transceiver components are set to 1-2GHz, 2-4GHz, 4-6GHz, 6-8GHz, 8-10GHz, 10-12GHz, 12-15GHz, and 15-18GHz.

[0056] The following describes the functions performed by the main components in the above system during the detection signal generation stage and the echo signal acquisition stage.

[0057] In the detection signal generation stage, the signal processing component generates an intermediate frequency signal and inputs the intermediate frequency signal into the frequency conversion component. The frequency conversion component up-converts the intermediate frequency signal and transmits the detection signal obtained after the up-conversion process through the transmitting unit. In the echo signal acquisition stage, the echo signal formed by the detection signal is received by the receiving unit, and then the echo signal is down-converted by the frequency conversion component, and the signal after the down-conversion process is input into the signal processing component.

[0058] Step S52: Design the working sequence.

[0059] For example, you can design Figure 3 The working timing is shown.

[0060] The target turntable will send an external trigger signal to the signal processing component during the rotation process. The signal processing component generates a frame trigger signal based on the turntable trigger signal, and generates a pulse trigger signal based on the frame trigger signal. Among them, one turntable trigger signal corresponds to one turntable step angle, one frame trigger signal corresponds to one frequency point, and one pulse trigger signal corresponds to a signal transmission and collection process.

[0061] After the signal processing component detects the generation of a frame trigger signal, it sends a frequency configuration instruction to the frequency conversion component; after the signal processing component detects the generation of a pulse trigger signal, it generates a transmission trigger signal and an acquisition trigger signal. After the transmission trigger signal is generated, the signal processing component transmits the intermediate frequency signal to the frequency conversion component according to the transmission pulse width and transmission delay input by the host computer. The frequency conversion component up-converts the intermediate frequency signal to the specified frequency point, and then transmits it to the power amplifier of the corresponding band through the RF output port. In specific implementation, the power amplifier requires RF signal input and corresponding pulse trigger signal input when working.

[0062] Step S53: perform measurement based on the RCS measurement mode.

[0063] In the RCS measurement mode, the frequency point counter, total frequency point counter, and band number counter are preset. The host computer receives the number of working bands configured by the user, the number of frequency points in each band, and the specific frequency points in each band.

[0064] In the RCS measurement mode, during the multi-band and multi-frequency point measurement process based on the frequency point information configured by the user, the switching of the measurement frequency point and the measurement band is controlled by updating the count value of the above counter. In addition, by judging whether the count value of the total number of frequency points counter is equal to the total number of frequency points configured by the user, and whether the count value of the number of bands counter is equal to the number of bands configured by the user, it is determined whether the measurement work is completed. If the judgment result is yes, confirm that a measurement process is completed and reset the counter; if the judgment result is no, continue to measure.

[0065] Step S54: performing measurement based on the imaging measurement mode.

[0066] In the imaging measurement mode, the frequency point counter, total frequency point counter, and band number counter are pre-set. The host computer receives the number of working bands configured by the user and the starting frequency, frequency step value, end frequency, frequency hopping times and other information in each band. Furthermore, in order to save the parameters configured by the user, such as the starting frequency, frequency step value, end frequency, frequency hopping times, 8 groups of starting frequency, frequency step value, end frequency, and frequency hopping times registers are pre-set.

[0067] In this mode, during the multi-band and multi-frequency point measurement based on the user-configured parameters such as the band and the starting frequency, the switching of the measurement frequency point and the measurement band is controlled by updating the count value of the above counter.

[0068] In the embodiments of the present disclosure, the above method can achieve more reliable and more efficient target electromagnetic scattering characteristic measurement at a lower hardware cost.

[0069] It should be noted that: the measurement radar system provided in the above embodiment is only illustrated by the division of the above functional modules. In actual applications, the above functions can be assigned to different functional modules as needed, that is, the internal structure of the device is divided into different functional modules to complete all or part of the functions described above. In addition, the measurement radar system provided in the above embodiment belongs to the same concept as the measurement method embodiment. The specific implementation process is detailed in the method embodiment and will not be repeated here.

[0070] An embodiment of the present application also provides a computer device, which includes a processor and a memory, in which at least one instruction, at least one program, a code set or an instruction set is stored, and the at least one instruction, at least one program, a code set or an instruction set is loaded and executed by the processor to implement the measurement methods provided by the above-mentioned method embodiments.

[0071] An embodiment of the present application also provides a computer-readable storage medium, on which is stored at least one instruction, at least one program, code set or instruction set, and the at least one instruction, at least one program, code set or instruction set is loaded and executed by a processor to implement the measurement methods provided by the above-mentioned method embodiments.

[0072] An embodiment of the present application further provides a computer program product, which includes a computer program. A processor of a computer device reads the computer program from a computer-readable storage medium, and the processor executes the computer program, so that the computer device executes any measurement method described in the above embodiments.

[0073] For the convenience of description, the above system or device is described by dividing it into various modules or units according to its functions. Of course, when implementing the present application, the functions of each unit can be implemented in the same or multiple software and / or hardware.

[0074] It can be known from the description of the above implementation methods that those skilled in the art can clearly understand that the present application can be implemented by means of software plus a necessary general hardware platform. Based on such an understanding, the technical solution of the present application can be essentially or partly contributed to the prior art in the form of a software product, which can be stored in a storage medium such as ROM / RAM, a magnetic disk, an optical disk, etc., and includes several instructions for enabling a computer device (which can be a personal computer, a server, or a network device, etc.) to execute the methods described in the various embodiments of the present application or certain parts of the embodiments.

[0075] Finally, it should be noted that, in this article, relational terms such as first, second, third and fourth 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 statement "comprise a ..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

[0076] The above is only a preferred implementation of the present application. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present application. These improvements and modifications should also be regarded as the scope of protection of the present application.

Claims

1. A measurement radar system, characterized in that: The system includes a signal processing component, a frequency conversion component, and a signal transceiver component of multiple bands; The signal processing component is configured to: send frequency modulation instructions to the frequency conversion component multiple times according to multiple working bands configured by the user and the working frequency point information in each working band, wherein the frequency modulation instruction carries the indication information of the designated frequency point and the control identification code, and the control identification code is used to indicate the signal transceiver component of the band where the designated frequency point is located; The frequency conversion component is configured to: generate a detection signal of the specified frequency point according to the frequency modulation instruction; and send the detection signal to a signal transceiver component of a corresponding band according to the control identification code; The signal transceiver component of multiple bands is configured to: after receiving the detection signal from the frequency conversion component, transmit the detection signal and receive the echo signal generated by the detection signal.

2. The system according to claim 1, characterized in that The signal processing component sends frequency modulation instructions to the frequency conversion component multiple times according to the multiple working bands configured by the user and the working frequency point information in each working band, including: When a frame trigger signal is detected, a frequency modulation instruction is sent to the frequency conversion component, and the count value of the band number counter and the count value of the first frequency point number counter are updated; The step of sending the frequency modulation instruction and the step of updating the count value are iterated until the count value of the band number counter is equal to the number of working bands configured by the user, and the count value of the first frequency point number counter is equal to the total number of working frequency points configured by the user.

3. The system according to claim 2, characterized in that The signal processing component sending the frequency modulation instruction to the frequency conversion component comprises: According to the working frequency point information in the current working band, a frequency modulation instruction for the current working band is sent to the frequency conversion component, and the count value of the second frequency point number counter corresponding to the current working band is updated; When the count value of the second frequency point number counter corresponding to the current working band is equal to the total number of frequencies in the working band configured by the user, the step of sending the frequency modulation instruction and the step of updating the count value of the second frequency point number counter are executed for the next working band until the measurement of all working bands is completed.

4. The system according to claim 3, characterized in that The working frequency point information in each working band includes a starting frequency point, a frequency point step value, an ending frequency point, and a total number of frequencies, or the working frequency point information in each working band includes multiple preset frequencies and a total number of frequencies.

5. The system according to any one of claims 1 to 4, characterized in that: The frequency modulation instruction includes a frequency point configuration instruction and a first frequency conversion control instruction, and the signal processing component sending the frequency modulation instruction to the frequency conversion component includes: After detecting the frame trigger signal, the signal processing component sends a frequency configuration instruction to the frequency conversion component, so that the frequency conversion component determines the designated frequency according to the designated frequency information carried by the frequency configuration instruction; After detecting the transmission trigger signal, the signal processing component sends a first frequency conversion control instruction to the frequency conversion component, so that the frequency conversion component converts the intermediate frequency signal carried by the first frequency conversion control instruction to the specified frequency point, wherein the generation time of the transmission trigger signal is after the frame trigger signal.

6. The system according to claim 5, characterized in that The signal processing component is further configured to: After detecting the acquisition trigger signal, a second frequency conversion control instruction is transmitted to the frequency conversion component, so that the frequency conversion component down-converts the received echo signal according to the second frequency conversion control instruction; and the signal obtained by the down-conversion is received from the frequency conversion component.

7. The system according to claim 6, characterized in that The signal processing component is further configured to: Generate the frame trigger signal according to an external trigger signal or an internal trigger signal; Generate a pulse trigger signal according to the frame trigger signal; The emission trigger signal and the acquisition trigger signal are generated according to the pulse trigger signal.

8. The system according to any one of claims 1 to 4, characterized in that: The signal transceiver component of each band in the multiple bands includes a receiving unit and a transmitting unit. The receiving unit includes a receiving antenna and a receiving front-end device, and the transmitting unit includes a power amplifier and a transmitting antenna.

9. The system according to any one of claims 1 to 4, characterized in that: The system further comprises a power management component, wherein the power management component is configured to provide power to the system.

10. A measurement method, characterized in that: The method comprises: The electromagnetic scattering characteristics of a target are measured based on the system described in any one of claims 1 to 9.

Images