A wave control and thermal control system and control method for spaceborne SAR phased array antenna

Abstract

The present invention provides a wave control and thermal control system and control method for a satellite-borne SAR phased array antenna, including in-cabin equipment and out-cabin equipment, which are communicatively connected; the in-cabin equipment includes a wave control and thermal control system, a power module and a satellite platform, and the out-cabin equipment includes an antenna subarray and several TR components. Beneficial effects of the present invention: higher integration, which can reduce the occupied design space and reduce weight in the design and application of satellite-borne SAR; the control method of the present invention makes full use of the physical characteristics of the memory chip and reduces the occupation of the memory chip resources; the present invention makes the updating and maintenance of the control system code more efficient; it can collect and process the data of the antenna array surface, and has higher real-time performance.

Description

Technical Field

[0001] The invention belongs to the field of spaceborne SAR, and in particular relates to a wave control and thermal control system of a spaceborne SAR phased array antenna and a control method. Background Art

[0002] Synthetic aperture radar is a modern high-resolution microwave remote sensing imaging radar that can be used in all weather and all day. It plays a great role in military observation, terrain detection, ocean and hydrological observation, environmental monitoring, and resource exploration. Multi-mode synthetic aperture radars with multiple frequency bands, multiple polarizations, variable viewing angles, and variable beams have become a reality. Today, SAR has evolved from being airborne and satellite-borne to missile-borne and boat-borne; from two-dimensional imaging to three-dimensional imaging, and can play a role that other remote sensing methods cannot play.

[0003] The important components of the SAR system include: antenna, beam control, thermal control, and power module. The performance of the antenna has a significant impact on the performance indicators of the SAR system, such as sensitivity, range and azimuth resolution, imaging ambiguity, and observation bandwidth. Beam control is to control the antenna's beam pointing. Thermal control is to control the temperature of the antenna system. Based on application requirements such as high resolution and wide bandwidth, the size, structure power consumption, etc. of the spaceborne SAR antenna have also increased accordingly.

[0004] At present, most satellite-borne SAR antennas are designed to have independent beam control and thermal control. Their control methods are also independent of each other. When controlling the beam of a single antenna subarray, the beam control sends a control signal to a branch of digital phase shifters, switches, digital attenuators and other network devices. Thermal control is generally controlled by the satellite platform, which needs to send a signal to read the temperature information of the temperature measurement point, and then decode and judge the temperature information. The advantages of this design are that it is convenient to read information and easy to implement. The disadvantage is that when it is applied to large-scale antennas, taking 1,000 temperature measurement points as an example, there will be a lot of temperature measurement points required for thermal control on power modules and TR components, and the number of interfaces on satellite platforms is often limited, so the design will be more complex and difficult. In addition, the control logic of the beam control is also distributed and stored in each word system. When controlling tens of thousands of TR gate logic, the on-orbit maintenance of the code is also a very challenging task. Summary of the invention

[0005] In view of this, the present invention aims to provide a spaceborne SAR phased array antenna wave control and thermal control system and control method to solve at least one problem existing in the above-mentioned prior art.

[0006] To achieve the above object, the technical solution of the present invention is achieved as follows:

[0007] In a first aspect, the present invention provides a spaceborne SAR phased array antenna wave control and thermal control system, including an in-cabin device and an out-cabin device, wherein the in-cabin device and the out-cabin device are communicatively connected;

[0008] The in-cabin equipment includes a wave control thermal control system, a power module and a satellite platform. The wave control thermal control system is bidirectionally connected to the power module and the satellite platform respectively, and the wave control thermal control system is also bidirectionally connected to the out-cabin equipment;

[0009] The extravehicular equipment includes an antenna subarray and a plurality of TR components, and the antenna subarray and TR components are both communicatively connected to a wave control and thermal control system.

[0010] Furthermore, the wave control thermal control system includes a SOC chip, an RS422 chip, an LVDS chip, a FLASH memory chip, a heating belt and a temperature sensor. The SOC chip is respectively communicated with the RS422 chip, the LVDS chip and the FLASH memory chip. The SOC chip is also communicated with one end of the heating belt through a heating belt control interface, and the other end of the heating belt is installed on the antenna subarray. The SOC chip is also communicated with the temperature sensor through a temperature sensor control interface, and the temperature sensor is affixed to the surface of the TR component and the antenna subarray.

[0011] Furthermore, the wave control thermal control system also includes a satellite platform interface, a level monitoring module, a power module interface and a TR gating signal interface. The level monitoring module is communicatively connected to the satellite platform via the satellite platform interface, the SOC chip is electrically connected to the power module via the power module interface, and the SOC chip is communicatively connected to the TR component via the TR gating signal interface.

[0012] Furthermore, the number of the FLASH memory chips is 4, 2 of which store the gating signal and the wave control code of the TR component respectively, and the other 2 FLASH memory chips store the temperature data of the temperature sensor.

[0013] Furthermore, after receiving the working instructions from the satellite platform, the wave control thermal control system reads the wave control code of the FLASH storage chip according to the working instructions, and sends the wave control code to the TR component of the antenna array through the RS422 chip. After receiving the wave control code, the TR component executes the task, and at the same time, the TR component also transmits the antenna scanning factor to the wave control thermal control system to realize the forwarding of telemetry signals; the temperature sensor is attached to the surface of the TR component and the antenna subarray, and before or during the execution of the task, the wave control thermal control system reads the temperature parameters of the temperature sensor through the LVDS chip to monitor the temperature of the TR component and the antenna subarray. When the temperature is low, the wave control thermal control system will issue an instruction to control the heating belt to heat the antenna subarray.

[0014] Furthermore, the control of the FLASH storage chip includes:

[0015] The gating signal of the TR component is concentrated in the FLASH memory chip. The FLASH memory chip is divided into two blocks. Each block is divided into different areas. Block 1 is the even area and block 2 is the odd area. The TR components with different serial numbers are divided into odd and even arrays.

[0016] 1block controls the TR components of even-numbered sequences, and 2block controls the TR components of odd-numbered sequences;

[0017] There are 64 pages in 2 blocks.

[0018] Furthermore, the temperature value of the temperature sensor is stored inside the FLASH memory chip without partitioning. After each task is completed, the SOC chip reads the temperature value from the FLASH memory chip and finally forwards it to the satellite platform through packaging; the control program of the heating belt is stored in the RAM of the SOC chip.

[0019] In a second aspect, based on the same concept, the present invention also provides a control method for a spaceborne SAR phased array antenna wave control and thermal control system, comprising the following steps:

[0020] S1, the satellite platform sends a short pulse signal, recorded as BTN_N, to the wave control thermal control system;

[0021] S2, the wave control thermal control system will respond and send a T_OK signal to the power module;

[0022] S3. After the power module is powered on, it sends a SYS_ON signal and feeds it back to the level monitoring module through the transmission line;

[0023] S4, the level monitoring module sends a PWR_N signal to the satellite platform in the cabin;

[0024] S5. The satellite platform sends a work instruction to the SOC chip. At this time, the SOC chip sends a MOD_ON signal to the enable end of each functional chip to make it work.

[0025] Furthermore, in step S1, after receiving the power-on command from the satellite platform, the wave-controlled thermal control system will generate a timing control logic signal for self-test; the wave-controlled thermal control system will start the initialization signal, and the initialization logic control signals are BTN_N, T_OK, SYS_ON, PWR_N, MOD_ON, and RST_N respectively.

[0026] Compared with the prior art, the satellite-borne SAR phased array antenna wave control thermal control system and control method described in the present invention have the following advantages:

[0027] (1) The satellite-borne SAR phased array antenna wave control and thermal control system and control method described in the present invention have a higher degree of integration. In the design and application of satellite-borne SAR, it can reduce the occupied design space and reduce weight, which is a great breakthrough. The control method of the present invention fully utilizes the physical characteristics of the memory chip and reduces the occupation of memory chip resources. The present invention makes the updating and maintenance of the control system code more efficient. It can collect and process the data of the antenna array surface with higher real-time performance.

[0028] (2) Compared with distributed computing, the satellite-borne SAR phased array antenna wave control and thermal control system and control method described in the present invention have the following advantages: the calculation of the wave control code is concentrated in the SOC main control chip, and the calculation is real-time and efficient. If there are N TR components and M antenna sub-arrays, the amount of calculation for calculating the wave control code and the scanning factor is M*N; while if the calculation is concentrated in one SOC using a parallel method, the amount of calculation is N, which effectively reduces the amount of calculation and improves efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] The accompanying drawings constituting a part of the present invention are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the accompanying drawings:

[0030] Figure 1 A schematic diagram of the overall system according to an embodiment of the present invention;

[0031] Figure 2 A schematic diagram of the internal architecture of the wave-controlled thermal control system according to an embodiment of the present invention;

[0032] Figure 3 A schematic diagram of the flow of self-test signals of a wave-controlled thermal control system according to an embodiment of the present invention;

[0033] Figure 4 A schematic diagram of the flow direction of echo signals of a wave-controlled thermal control system according to an embodiment of the present invention;

[0034] Figure 5 A schematic diagram of a storage unit in a FLASH storage chip according to an embodiment of the present invention;

[0035] Figure 6 Schematic diagram of the timing sequence of initialization logic signals of the wave-controlled thermal control system according to an embodiment of the present invention. DETAILED DESCRIPTION

[0036] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments may be combined with each other.

[0037] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and the like are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", and the like may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0038] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", 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 indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

[0039] The present invention will be described in detail below with reference to the accompanying drawings and in conjunction with embodiments.

[0040] like Figures 1 to 6 As shown, a spaceborne SAR phased array antenna wave control and thermal control system includes an in-cabin device and an out-cabin device, wherein the in-cabin device and the out-cabin device are communicatively connected;

[0041] The in-cabin equipment includes a wave control thermal control system, a power module and a satellite platform. The wave control thermal control system is bidirectionally connected to the power module and the satellite platform respectively, and the wave control thermal control system is also bidirectionally connected to the out-cabin equipment;

[0042] The extravehicular equipment includes an antenna subarray and a plurality of TR components, and the antenna subarray and TR components are both communicatively connected to a wave control and thermal control system.

[0043] In a preferred embodiment of the present invention, the wave control thermal control system includes a SOC chip, an RS422 chip, an LVDS chip, a FLASH memory chip, a heating belt and a temperature sensor. The SOC chip is respectively communicated with the RS422 chip, the LVDS chip and the FLASH memory chip. The SOC chip is also communicated with one end of the heating belt through a heating belt control interface, and the other end of the heating belt is installed on the antenna subarray. The SOC chip is also communicated with the temperature sensor through a temperature sensor control interface, and the temperature sensor is affixed to the surface of the TR component and the antenna subarray.

[0044] In a preferred embodiment of the present invention, the wave-controlled thermal control system also includes a satellite platform interface, a level monitoring module, a power module interface and a TR gating signal interface. The level monitoring module is communicatively connected to the satellite platform via the satellite platform interface, the SOC chip is electrically connected to the power module via the power module interface, and the SOC chip is communicatively connected to the TR component via the TR gating signal interface.

[0045] In a preferred embodiment of the present invention, the number of the FLASH memory chips is 4, 2 of which store the gating signal and the wave control code of the TR component respectively, and the other 2 FLASH memory chips store the temperature data of the temperature sensor.

[0046] In a preferred embodiment of the present invention, the system includes a wave control and thermal control system, a power module, an antenna subarray, a TR component, etc. Compared with the traditional design, the wave control and thermal control system of the present invention adopts a more integrated platform architecture, uses fewer components and occupies a small amount of space, so that it has specific functions and is concentrated in one system. The hardware platform architecture of the wave control and thermal control system includes SOC chip, RS422 chip, LVDS chip, FLASH storage chip, heating belt, and temperature sensor. Among them, RS422 chip, LVDS chip, and FLASH storage chip are all functional chips, and the SOC chip is the UltraScale+MPSoC-EV series, which is highly integrated with RAM, ADC, DAC, and high-speed DSP. It is characterized by low power consumption and high flexibility. The use of a single chip can meet the application requirements of the entire subsystem. Due to its highly centralized system, the traditional radar sub-controller is no longer needed.

[0047] In a preferred embodiment of the present invention, after receiving the working instruction of the satellite platform, the wave control thermal control system reads the wave control code of the FLASH storage chip according to the instruction, and sends the wave control code to the TR component of the antenna array through the RS422 chip. After receiving the wave control code, the TR component executes the task, and at the same time, the TR component also transmits the antenna scanning factor to the wave control thermal control system; and realizes the forwarding of telemetry signals. The temperature sensor is attached to the surface of the TR component and the antenna subarray. Before or during the execution of the task, the wave control thermal control system reads the temperature parameters of the temperature sensor through the LVDS chip to monitor the temperature of the TR component and the antenna subarray. When the temperature is low, the wave control thermal control system will issue an instruction to control the heating belt to heat the antenna subarray so that its temperature rises to a certain range.

[0048] In a preferred embodiment of the present invention, the control method of the FLASH memory (i.e., the FLASH memory chip) is described as follows: the gating signal for TR is concentrated in the NANAD Flash memory of the control system, which is internally divided into 2 blocks, each block is divided into different areas, 1block is recorded as the even area, 2block is recorded as the odd area, and TR components with different serial numbers are divided into odd-even arrays, so 1block controls the TR components of the even sequence (TR2, TR4, TR6..., TR(N)), and 2block controls the TR components of the odd sequence (TR1, TR3, TR5..., TR(N+1)). There are 64 pages in the 2 blocks. Taking the first page area as an example: 0x0000000000-0x000000083F is the gating signal address of 500 TR components, so that the gating signals of at least 32,000 TR components can be stored. For the design of ultra-large SAR systems, this method is also sufficient for use and does not require complex storage design. The schematic diagram of the storage unit is as follows Figure 5 shown.

[0049] In a preferred embodiment of the present invention, the temperature value of the temperature sensor is normally stored in the FLASH, and no partition operation is performed. After each task is completed, the SOC reads the temperature value from the memory and finally forwards it to the entire satellite platform through packaging. The control program of the heating belt is stored in the RAM of the SOC, which can flexibly control the temperature heating.

[0050] In a preferred embodiment of the present invention, the self-check timing control before executing the task indicates that the wave-controlled thermal control system will start the initialization signal. The initialization logic control signals are BTN_N, T_OK, SYS_ON, PWR_N, MOD_ON, and RST_N, respectively. BTN_N is a short pulse signal given by the entire satellite platform to the wave-controlled thermal control system, and then the wave-controlled thermal control system will respond to the SOC and send a T_OK signal as a control enable to the power module.

[0051] After power-on, the feedback pin of the power module outputs the SYS_ON signal to the level monitoring module of the wave control thermal control system. The level monitoring module sends a PWR_N signal to the satellite platform in the cabin. After confirming that the state is stable, the satellite platform sends a work instruction to the SOC chip. At this time, the SOC chip sends a MOD_ON signal to the enable end of each functional chip to make it work. RST_N is a reset signal, which is used to initialize and reset the main control chip.

[0052] The timing diagram of the initialization logic signal of the wave control thermal control system is as follows: Figure 6 As shown:

[0053] According to different working modes, the wave control code is written into FLASH according to categories and stored in different address bits. After receiving the command from the satellite platform, the SOC chip of the wave control thermal control system decodes according to the command, and the decoded frame header is verified with the frame header of the wave control code stored in the FLASH chip. After the verification passes, the wave control code inside the FLASH is read according to the protocol and packaged and forwarded to the TR component. The SOC main control chip of the wave control thermal control system can calculate and capture the scanning factor and temperature data of the antenna array in real time according to the working mode.

[0054] In a preferred embodiment of the present invention, the wave control thermal control system part controls the power of the heating belt according to the size of the power factor, thereby adjusting the temperature of the subarray, so that the temperature of the entire antenna subarray can have a good linear trend. At the same time, it will also perform calculations based on the antenna scanning factor Q value, and perform algorithm compensation at the same time, and finally package the compensated data and send it to the TR component, so as to obtain a higher quality scanning factor.

[0055] In different modes, the main control SOC chip can generate logic signals with different timings. The TR components will perform different mission modes according to different timing logics. During the mission, the wave control and thermal control system can receive the status signals of the antenna array in real time, including temperature, voltage, error status, good status and other information, and can process the echo signals of the antenna in real time. The processed data will also be packaged and sent to the satellite platform. In the design of this invention, each TR component signal controlled by the SOC is independent and does not affect each other.

[0056] Advantages of the present invention:

[0057] (1) Higher integration level. This is a major breakthrough in the design and application of spaceborne SAR, as it can reduce the occupied design space and reduce weight.

[0058] (2) The control method of the present invention fully utilizes the physical characteristics of the memory chip and reduces the occupation of memory chip resources.

[0059] (3) The present invention makes the updating and maintenance of control system codes more efficient.

[0060] (4) It can collect and process data from the antenna array with higher real-time performance.

[0061] (5) Compared with distributed computing, the advantages of the present invention are: the calculation of the wave control code is concentrated in the SOC main control chip, and the calculation is real-time and efficient. If there are N TR components and M antenna sub-arrays, then the amount of calculation for calculating the wave control code and the scanning factor is M*N; while if the calculation is concentrated in one SOC using a parallel method, the amount of calculation is N, which effectively reduces the amount of calculation and thus improves efficiency.

[0062] A control method for a spaceborne SAR phased array antenna wave control and thermal control system, specifically comprising the following steps:

[0063] like Figure 1 As shown in the figure, the wave control thermal control system is a highly integrated system. After receiving the power-on command from the satellite platform, it will generate a timing control logic signal for self-test. The wave control thermal control system will start the initialization signal. The initialization logic control signals are BTN_N, T_OK, SYS_ON, PWR_N, MOD_ON, and RST_N.

[0064] Step 1: The satellite platform sends a short pulse signal, recorded as BTN_N, to the wave control thermal control system.

[0065] Step 2: The wave-controlled thermal control system SOC will respond and send a T_OK signal to the power module.

[0066] Step 3: After the power module is powered on, a SYS_ON signal is sent and fed back to the level monitoring module through the transmission line.

[0067] Step 4: The level monitoring module sends a PWR_N signal to the satellite platform in the cabin.

[0068] Step 5: The satellite platform sends a work instruction to the SOC chip, and the SOC chip sends a MOD_ON signal to the enable end of each functional chip to make it work. RST_N is a reset signal, which is used to initialize and reset the main control chip.

[0069] In a preferred embodiment of the present invention, the wave control thermal control system is the core part, mainly composed of SOC chip, LVDS chip, FLASH chip, RS422 chip and other functional modules, and the functions realized mainly include:

[0070] The functions implemented are as follows:

[0071] Receive work instructions from satellite platforms.

[0072] According to the power factor, the program algorithm is loaded from the flash1 and flash2 storage devices to control the temperature of the antenna subarray in real time.

[0073] According to the antenna factor, the codeword is read from the flash3 and flash4 storage devices, and then the SOC generates different timing parameters to achieve beam control.

[0074] The program is stored in partitions according to the address area of ​​the storage device for easy maintenance.

[0075] Process the antenna echo signal in real time.

[0076] The processed signal is sent to the satellite platform.

[0077] (7) Function of monitoring the status of the antenna array and other information such as telemetry.

[0078] After power-on, the system works in the following ways:

[0079] After receiving the working instruction, the wave control thermal control system decodes and verifies according to the instruction and reads the original wave control code of the FLASH storage chip.

[0080] The main control chip packages the wave control code and sends it to the TR component.

[0081] After receiving the wave control code, the TR component starts working and sends the scanning factor of the antenna array and temperature data, telemetry voltage and error status to the SOC chip of the wave control thermal control system in real time.

[0082] The wave control thermal control system will control the power of the heating belt according to the size of the power factor, thereby adjusting the temperature of the sub-array, so that the temperature of the entire antenna sub-array can have a good linear trend.

[0083] In a preferred embodiment of the present invention, the wave control thermal control system also performs calculations based on the antenna scanning factor Q value and performs algorithm compensation at the same time. The calculations are mainly for phase compensation to eliminate motion errors.

[0084] The compensated data is finally packaged and sent to the TR component, so as to obtain a higher quality scanning factor.

[0085] The algorithm includes MD and PGA algorithms. The MD algorithm has a large amount of computation and estimates the error coefficient by correlating the sub-views. When the imaging quality requirements are not high, the SOC system can choose the MD algorithm.

[0086] The PGA algorithm directly estimates the relative position error from the echo signal without using a phase error model. When high-quality imaging is required for a local area, the SOC system can choose the PGA algorithm.

[0087] During the mission, the wave control and thermal control system can receive the status signal of the antenna array in real time, including temperature, voltage, error status, good status and other information, and can process the echo signal of the antenna in real time. The processed data will be packaged and sent to the satellite platform. In the invention design, each TR component signal controlled by the SOC is independent and does not affect each other.

[0088] Satellite platforms, beam control and thermal control systems, and power modules are in-cabin equipment, while antennas, TR components and other systems are out-cabin equipment.

[0089] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A wave control and thermal control system for spaceborne SAR phased array antennas. Features: The device comprises an in-cabin device and an out-cabin device, wherein the in-cabin device and the out-cabin device are communicatively connected; The in-cabin equipment includes a wave control thermal control system, a power module and a satellite platform. The wave control thermal control system is bidirectionally connected to the power module and the satellite platform respectively, and the wave control thermal control system is also bidirectionally connected to the out-cabin equipment; The extravehicular equipment includes an antenna subarray and a plurality of TR components, and the antenna subarray and TR components are both communicatively connected to the wave control and thermal control system; The wave control thermal control system includes a SOC chip, an RS422 chip, an LVDS chip, a FLASH memory chip, a heating belt and a temperature sensor. The SOC chip is respectively connected to the RS422 chip, the LVDS chip and the FLASH memory chip for communication. The SOC chip is also connected to one end of the heating belt for communication through a heating belt control interface. The other end of the heating belt is mounted on the antenna subarray. The SOC chip is also connected to the temperature sensor for communication through a temperature sensor control interface. The temperature sensor is attached to the surface of the TR component and the antenna subarray. The wave control thermal control system also includes a satellite platform interface, a level monitoring module, a power module interface and a TR gating signal interface. The level monitoring module is connected to the satellite platform through the satellite platform interface, the SOC chip is electrically connected to the power module through the power module interface, and the SOC chip is connected to the TR component through the TR gating signal interface. The SOC chip integrates RAM, ADC, DAC, and high-speed DSP; After receiving the working instruction of the satellite platform, the wave control thermal control system reads the wave control code of the FLASH storage chip according to the working instruction, and sends the wave control code to the TR component of the antenna array through the RS422 chip. After receiving the wave control code, the TR component executes the task, and at the same time, the TR component also transmits the antenna scanning factor to the wave control thermal control system to realize the forwarding of telemetry signals; the temperature sensor is attached to the surface of the TR component and the antenna subarray. Before or during the execution of the task, the wave control thermal control system reads the temperature parameters of the temperature sensor through the LVDS chip to monitor the temperature of the TR component and the antenna subarray. When the temperature is low, the wave control thermal control system will issue a command to control the heating belt to heat the antenna subarray; The control of the FLASH memory chip includes: The gating signal of the TR component is concentrated in the FLASH memory chip. The FLASH memory chip is divided into two blocks. Each block is divided into different areas. Block 1 is the even area and block 2 is the odd area. The TR components with different serial numbers are divided into odd and even arrays. 1block controls the TR components of even-numbered sequences, and 2block controls the TR components of odd-numbered sequences; There are 64 pages in 2 blocks.

2. The spaceborne SAR phased array antenna wave control and thermal control system according to claim 1, Features: The number of the FLASH memory chips is 4, 2 of which store the gate control signal and the wave control code of the TR component respectively, and the other 2 FLASH memory chips store the temperature data of the temperature sensor.

3. The spaceborne SAR phased array antenna wave control and thermal control system according to claim 1, Features: The temperature value of the temperature sensor is stored inside the FLASH memory chip without partitioning. After each task is completed, the SOC chip reads the temperature value from the FLASH memory chip and finally forwards it to the satellite platform through packaging; the control program of the heating belt is stored in the RAM of the SOC chip.

4. A control method for a spaceborne SAR phased array antenna wave control and thermal control system, applied to a spaceborne SAR phased array antenna wave control and thermal control system as claimed in any one of claims 1 to 3, Features: The following steps are involved: The wave control thermal control system is a highly integrated system. After receiving the power-on command from the satellite platform, it will generate a timing control logic signal for self-test. The wave control thermal control system will start the initialization signal. The initialization logic control signals are BTN_N, T_OK, SYS_ON, PWR_N, MOD_ON, and RST_N. S1, the satellite platform sends a short pulse signal, recorded as BTN_N, to the wave control thermal control system; S2, the SOC of the wave-controlled thermal control system will respond and send a T_OK signal to the power module; S3. After the power module is powered on, it sends a SYS_ON signal and feeds it back to the level monitoring module through the transmission line; S4, the level monitoring module sends a PWR_N signal to the satellite platform in the cabin; S5, the satellite platform sends a work instruction to the SOC chip, and the SOC chip sends a MOD_ON signal to the enable end of each functional chip to make it work; The RST_N is a reset signal, which is used to initialize and reset the main control chip; In step S1, after receiving the power-on command from the satellite platform, the wave control thermal control system will generate a timing control logic signal for self-test; the wave control thermal control system will start the initialization signal, and the initialization logic control signals are BTN_N, T_OK, SYS_ON, PWR_N, MOD_ON, and RST_N; Compared with distributed computing, the computation of the wave control code of the present invention is concentrated in the SOC chip, and the computation is real-time and efficient. If there are N TR components and M antenna subarrays, the computation amount of the wave control code and the scanning factor is M*N; while if the computation is concentrated in one SOC chip and a parallel method is used, the computation amount is N, which effectively reduces the computation amount and thus improves efficiency. After power-on, the satellite-borne SAR phased array antenna wave control and thermal control system works as follows: After receiving the working instruction, the wave control thermal control system decodes and verifies according to the instruction and reads the original wave control code of the FLASH storage chip; The main control chip packages the wave control code and sends it to the TR component; After receiving the wave control code, the TR component starts working and sends the scanning factor of the antenna array and temperature data, telemetry voltage and error status to the SOC chip of the wave control thermal control system in real time; The wave control thermal control system will control the power of the heating belt according to the size of the power factor, thereby adjusting the temperature of the subarray, so that the temperature of the entire antenna subarray can have a good linear trend; The wave control thermal control system will also perform calculations based on the antenna scanning factor Q value and perform algorithm compensation, which includes phase compensation and elimination of motion errors; The compensated data is finally packaged and sent to the TR component, so as to obtain a higher quality scanning factor; The algorithm includes the MD algorithm and the PGA algorithm. The MD algorithm has a large amount of computation and estimates the error coefficient by correlating the sub-views. When the imaging quality requirement is not high, the SOC chip selects the MD algorithm. The PGA algorithm directly estimates the phase error from the echo signal without using a phase error model. When high-quality imaging is required for a local area, the SOC chip selects the PGA algorithm. During the mission, the wave control and thermal control system can receive the status signals of the antenna array in real time, including temperature, voltage, error status, and good status information, and can process the antenna's echo signals in real time. The processed data will finally be packaged and sent to the satellite platform; each TR component signal controlled by the SOC chip is independent and does not affect each other.

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