Common-caliber simultaneous multifunctional phased-array antenna wave control system

Abstract

The invention relates to the technical field of phased-array antennas, in particular to a common-caliber simultaneous multifunctional phased-array antenna wave control system, which uses a common-caliber antenna array, comprises N phased-array antennas and N TR components, and realizes caliber sharing through staggered layout. And a wave control system is used for calculating a wave beam control command by utilizing embedded software, controlling phase shift and attenuation of the TR component and processing internal and external interface communication. The feed network is used for signal distribution, and uniform distribution and transmission efficiency are ensured. A Beidou system is used for providing time synchronization and positioning information, and accurate beam control of the beam control system in a complex electromagnetic environment is guaranteed. A channel is used for receiving antenna array signals, control signals are sent to the TR assembly, and accurate transmission of the signals is ensured. According to the invention, the problem that the existing wave control system cannot perform multi-beam control on the common-caliber multifunctional phased-array antenna at the same time is solved, and the target of multi-beam control in the single shared antenna caliber is realized.

Description

Technical Field

[0001] The present invention relates to the technical field of phased array antennas, and in particular to a co-aperture simultaneous multifunctional phased array antenna wave control system. Background Art

[0002] In the context of the rapid development of science and technology today, the traditional phased array antenna beam control technology has reached a certain stage of maturity. According to the current technical level, the conventional phased array antenna beam control system is generally designed to only perform a specific function of beam control tasks at the same time within a single antenna aperture. This design method limits the versatility and flexibility of the antenna system to a certain extent. However, with the continuous improvement of technical equipment levels and the continuous advancement of related technologies, we are now able to integrate phased array antennas with multiple functions within one antenna aperture. These integrated functions can work independently without interfering with each other, so that the antenna system can achieve different tasks at the same time. This technological breakthrough not only improves the performance of the antenna system, but also greatly expands its scope of application, bringing new possibilities to fields such as communications, radar, and aerospace.

[0003] However, given the various limitations of current system integration, we are faced with a challenge that it is not possible to equip each phased array antenna with a specific function with an independent beam control (beam control) system. Existing beam control systems have some limitations in their design. These systems can only support the operation of phased array antennas with a single function at any given time period. Therefore, they cannot meet the needs of beam control of phased array antennas with multiple functions within the same antenna aperture. This limitation means that if you want to implement multiple functions in the same device, such as simultaneous radar detection and communication transmission, the existing beam control systems will not be able to do the task because they cannot process multiple different beam control instructions at the same time. This limits the application scope and flexibility of phased array antenna technology to a certain extent. Summary of the invention

[0004] In view of the deficiencies in the prior art, the present invention discloses a co-aperture simultaneous multifunctional phased array antenna wave control system for solving the above problems.

[0005] The present invention is achieved through the following technical solutions:

[0006] The present invention provides a common aperture simultaneous multifunctional phased array antenna wave control system, comprising

[0007] A common aperture antenna array includes N phased array antennas and N TR components, wherein the multiple phased array antennas are arranged in a staggered manner to achieve phased array antenna sharing aperture, and N is a positive integer;

[0008] The beam control system calculates beam control commands through embedded software, completes the phase shift and attenuation control of the TR component, and is responsible for the communication of internal and external interfaces;

[0009] Feed network, used to distribute signals to each TR component to ensure uniform distribution and transmission efficiency of signals;

[0010] Beidou is used to provide precise time synchronization and positioning information to ensure that the antenna beam control system can accurately perform beam pointing and beam forming in complex electromagnetic environments;

[0011] The channel is used to receive the received signal from the antenna array and send control signals to the TR component to ensure accurate transmission and processing of the signal.

[0012] Furthermore, the beam control system includes a beam control subarray, and the beam control subarray corresponds to the number of subarray divisions {1..., n}; the beam control subarray completes the phase shift code calculation and phase compensation functions of the phased array antenna subarray 1, the phased array antenna subarray 2...the phased array antenna n subarray, and controls the phase shifter and attenuator in the TR component to perform phase shifting and attenuation.

[0013] Furthermore, the beam control motherboard of the beam control system completes the beam pointing angle analysis, satellite tracking and radar scanning functions of N phased array antennas, and is responsible for the communication of internal and external interfaces.

[0014] Furthermore, the N TR components include phase shifters and attenuators, which communicate data with the wave control sub-board through a standard communication protocol SPI interface and are controlled by the wave control sub-board.

[0015] Furthermore, the wave control sub-board is provided with a non-volatile memory for storing the calibration information of the amplitude and phase of each TR channel.

[0016] Furthermore, a beam control chip is provided in the beam control sub-board to complete the compensation of calibration data and the calculation of beam scanning angle, and convert the calculation result into phase control information of each TR component.

[0017] Furthermore, the software built into the wave control sub-board includes an interface module, a calculation module, a communication module and a control module.

[0018] Furthermore, the wave control motherboard integrates a main control chip, a non-volatile memory, a clock device, an interface chip, a power chip, a functional module and a sensor.

[0019] Furthermore, the channel receives control commands from outside the antenna through the RS422 interface and enters the antenna, and after being parsed by the main control chip, is distributed to the sub-boards in parallel through a plurality of RS422 interfaces.

[0020] Furthermore, the system also includes a monitoring module, which is responsible for real-time monitoring of the working status of the antenna array and TR components. The monitoring module continuously evaluates the health of the system by collecting temperature, current and voltage parameters. Once an abnormality is detected, the monitoring module will immediately start the fault diagnosis program and send an alarm to the operator through the wave control system to ensure the safety and reliability of the system.

[0021] The beneficial effects of the present invention are:

[0022] The present invention solves the problem that the existing beam control system cannot realize multiple beam controls for the same-aperture multifunctional phased array antenna at the same time, thereby achieving the goal of completing the beam control of multiple phased array antennas in parallel within a single shared antenna aperture through a set of beam control systems. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] 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 only 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.

[0024] Figure 1 It is a block diagram of a co-aperture simultaneous multifunctional phased array antenna system;

[0025] Figure 2 It is a block diagram of the composition of the common aperture simultaneous multifunctional phased array antenna beam control system;

[0026] Figure 3 It is the working principle diagram of the common-aperture simultaneous multifunctional phased array antenna wave control system. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution 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. 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.

[0028] In one embodiment, referring to Figure 1As shown in the figure, the common-aperture multifunctional phased array antenna includes three types of phased array antennas. The antenna array realizes the sharing of the aperture of the three phased array antennas through an interlaced layout. Each phased array antenna can use the aperture gain losslessly to achieve true shared aperture. The main ways to achieve it are multi-frequency common-aperture technology, transmit-receive common-aperture technology, and beam scanning anti-interference technology.

[0029] In this embodiment, the beam control system calculates the beam control command through embedded software to achieve phase shift and attenuation control of the TR component. The beam control system is not only responsible for the analysis of the beam pointing angle, satellite tracking and radar scanning functions, but also undertakes the communication tasks of the internal and external interfaces. In this way, the beam control system can ensure the uniform distribution and transmission efficiency of the signal, while ensuring the accurate beam pointing and beam forming of the antenna beam control system in a complex electromagnetic environment.

[0030] In this embodiment, the feed network is a key component of the system, and its design purpose is to efficiently distribute signals to each TR component. To achieve this goal, the feed network uses advanced signal distribution technology to ensure the uniformity and efficiency of the signal during transmission. In addition, the feed network also has a certain fault tolerance capability, which can ensure the stable operation of the system even if some components fail.

[0031] In this embodiment, the Beidou module plays a vital role in this system. It not only provides accurate time synchronization information, but also provides accurate positioning information. This information is essential to ensure that the antenna beam control system accurately performs beam pointing and beam forming in a complex electromagnetic environment. The integration of the Beidou module enables this system to have higher accuracy and reliability when performing tasks.

[0032] In this embodiment, the channel is a key channel for receiving and transmitting signals, and its design requirements are extremely high. It is responsible for receiving the reception signal from the antenna array and sending the control signal to the TR component. In order to ensure the accurate transmission and processing of the signal, the channel adopts high-precision signal processing technology and has strong anti-interference ability.

[0033] In this embodiment, the monitoring module is an important component of the system responsible for real-time monitoring of the working status of the antenna array and TR components. It continuously evaluates the health of the system by collecting temperature, current and voltage parameters. Once an abnormality is detected, the monitoring module will immediately start the fault diagnosis program and send an alarm to the operator through the wave control system to ensure the safety and reliability of the system.

[0034] The common aperture simultaneous multifunctional phased array antenna beam control system of this embodiment successfully achieves the goal of completing multiple phased array antenna beam control in parallel within the same shared antenna aperture through a series of innovative design and integration technologies. This system not only improves the performance of the antenna system, but also greatly expands its application scope, bringing new possibilities to the fields of communications, radar, and aerospace.

[0035] In one embodiment, referring to Figure 1 As shown in the figure, the entire phased array antenna system is a complex and sophisticated device composed of multiple key parts, including co-aperture antenna array, TR components, beam control system, power supply, Beidou navigation system, feed network and channel, etc. Among these components, the beam control system plays a vital role as the control core of the entire co-aperture phased array antenna system.

[0036] The beam control system of this embodiment runs embedded software to accurately calculate beam control commands, which are responsible for guiding the TR component to perform precise phase shift and attenuation operations to achieve fine control of the beam direction and shape. In addition, the beam control system also assumes the interface function of communicating with the inside and outside of the system, ensuring that the entire antenna system can efficiently and accurately exchange data and transfer information with other devices or systems.

[0037] In this embodiment, phased array antenna 1 can complete the satellite signal reception and satellite tracking functions of frequency band 1; phased array antenna 2 can complete the satellite signal reception and satellite tracking functions of frequency band 2; phased array antenna 3 can complete the radar signal reception and transmission, beam scanning and other functions of frequency band 3.

[0038] The design of the beam control system of this embodiment adopts a modular and hierarchical structure, which makes the system have good scalability and maintainability. Each module has a clear functional division, which is convenient for upgrading or replacing as needed in actual applications. For example, the beam control sub-board can adapt to new control algorithms and protocols through software updates according to different phased array antenna functional requirements.

[0039] In this embodiment, the calibration information stored in the non-volatile memory of the wave control daughter board is obtained through a precise calibration process. This calibration information is essential to ensure that the TR component can maintain optimal performance under different operating conditions. The beam control chip of the wave control daughter board uses this calibration information to accurately calculate the beam scanning angle, thereby achieving precise control of the beam pointing and shape.

[0040] In this embodiment, the software modular design of the beam control system makes the system highly flexible and configurable. The interface module is responsible for processing the communication protocol with external devices, the calculation module is responsible for executing the beam control algorithm, the communication module is responsible for data exchange between internal modules, and the control module is responsible for coordinating the workflow of each module. This modular design not only improves the stability and reliability of the system, but also facilitates subsequent maintenance and upgrades.

[0041] In this embodiment, the integrated design of the wave control motherboard integrates the main control chip, non-volatile memory, clock device, interface chip, power chip, function module and sensor and other key components together to form a compact and powerful control center. This integrated design not only reduces the size and weight of the system, but also improves the overall performance and response speed of the system.

[0042] In this embodiment, after the control commands from the outside of the channel receiving antenna enter the antenna through the RS422 interface, the main control chip will parse these commands and distribute them to each sub-board in parallel through several RS422 interfaces. This parallel processing mechanism greatly improves the response speed and processing capacity of the system, ensuring the real-time and accuracy of the signal.

[0043] In this embodiment, the real-time monitoring function of the monitoring module can not only monitor the working status of the antenna array and TR components in real time, but also evaluate the health of the system. Through the collected temperature, current and voltage parameters, the monitoring module can promptly detect abnormal conditions in the system and start the fault diagnosis program. This function is crucial to ensure the long-term stable operation and safety of the system.

[0044] The co-aperture simultaneous multifunctional phased array antenna beam control system of the present invention, through the implementation of the above technical solution, can not only realize effective beam control of phased array antennas with multiple functions, but also ensure high performance and high reliability of the system. The system has broad application prospects in the fields of communications, radar, and aerospace, and provides new possibilities for the development of related technologies.

[0045] In one embodiment, referring to Figure 2 As shown in the figure, given the large size of the antenna array, the beam control system can be modularly designed. A two-level beam control structure is used in this case. The beam control subarray corresponds to the number of subarray divisions (1 to n). The beam control subarray is responsible for performing tasks such as phase shift code calculation and phase compensation for subarray 1, subarray 2, and subarray 3 of the phased array antenna, and accurately controls the phase shifter and attenuator in the TR component to achieve phase shift and attenuation functions.

[0046] In this embodiment, TR1 represents the TR component of phased array antenna 1, TR2 represents the TR component of phased array antenna 2, and TR3 represents the TR component of phased array antenna 3. Each subarray is composed of a plurality of TR1s, a plurality of TR2s, and a plurality of TR3s. These subarrays together constitute a co-aperture phased array antenna array.

[0047] The beam control motherboard of this embodiment is responsible for analyzing the beam pointing angles of phased array antenna 1, phased array antenna 2, and phased array antenna 3, performing operations such as satellite tracking and radar scanning, and undertaking the communication tasks of internal and external interfaces.

[0048] In one embodiment, referring to Figure 3 As shown, each TR component includes a 6-bit phase shifter and a 6-bit attenuator, which exchanges data with the wave control sub-board through the standard communication protocol SPI interface to receive control instructions from the wave control sub-board. The wave control sub-board is internally configured with a non-volatile memory for storing the amplitude and phase calibration information of each channel (TR).

[0049] The beam control sub-board is embedded with a beam control chip (usually ASIC or FPGA), which is responsible for performing compensation operations on calibration data and calculating beam scanning angles, and converting the calculation results into phase control information for each TR component. The software system built into the beam control sub-board includes interface modules, calculation modules, communication modules, and control modules.

[0050] The control motherboard integrates the main control chip (usually FPGA or CPU), non-volatile memory, clock devices, interface chips, power chips, and various functional modules and sensors. The control commands outside the antenna are usually input into the antenna through the RS422 interface, and after being parsed by the main control chip, they are distributed to each sub-board in parallel through multiple RS422 interfaces.

[0051] In summary, the beam control system achieves fine control of the antenna beam through precise phase and amplitude control. The phase and amplitude calibration information of each TR component is stored in the non-volatile memory of the beam control daughter board, ensuring the persistence and reliability of the data. The compensation operation and beam scanning angle calculation performed by the beam control chip ensure the accuracy and dynamic adjustment capability of the beam pointing. In addition, the integrated design of the beam control motherboard, including the main control chip, memory, clock device, etc., provides powerful processing power and stability for the entire system. The control commands are input and distributed through the RS422 interface, ensuring efficient communication and response speed of the system.

[0052] In practical applications, the beam control system can support multiple working modes, such as single beam scanning, multi-beam simultaneous scanning, etc., to meet the needs of different scenarios. Its high integration and modular design not only simplify the installation and maintenance of the system, but also improve the scalability and upgrade capabilities of the system. In addition, the software system of the beam control sub-board supports online updates, allowing the system to adapt to future technological development and update needs.

[0053] In terms of security, the beam control system has fault detection and self-diagnosis functions, which can detect and report system abnormalities in a timely manner to ensure the stable operation of the antenna system. At the same time, the system also supports remote monitoring and maintenance, which is convenient for technicians to conduct remote troubleshooting and system optimization. These features make the beam control system not only have broad application prospects in the military field, but also have important application value in civilian fields such as communications and meteorological monitoring.

[0054] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features thereof may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A common aperture simultaneous multifunctional phased array antenna beam control system, characterized in that: include A common aperture antenna array includes N phased array antennas and N TR components, wherein the multiple phased array antennas are arranged in a staggered manner to achieve phased array antenna sharing aperture, and N is a positive integer; The beam control system calculates beam control commands through embedded software, completes the phase shift and attenuation control of the TR component, and is responsible for the communication of internal and external interfaces; Feed network, used to distribute signals to each TR component to ensure uniform distribution and transmission efficiency of signals; Beidou is used to provide precise time synchronization and positioning information to ensure that the antenna beam control system can accurately perform beam pointing and beam forming in complex electromagnetic environments; The channel is used to receive the received signal from the antenna array and send control signals to the TR component to ensure accurate transmission and processing of the signal.

2. The common-aperture simultaneous multifunctional phased array antenna beam control system according to claim 1, characterized in that: The beam control system includes a beam control subarray, and the beam control subarray corresponds to the number of subarray divisions {1..., n}; the beam control subarray completes the phase shift code calculation and phase compensation functions of the phased array antenna subarray 1, the phased array antenna subarray 2...the phased array antenna n subarray, and controls the phase shifter and attenuator in the TR component to perform phase shifting and attenuation.

3. The common-aperture simultaneous multifunctional phased array antenna beam control system according to claim 1, characterized in that: The beam control motherboard of the beam control system completes the beam pointing angle analysis, satellite tracking and radar scanning functions of N phased array antennas, and is responsible for the communication of internal and external interfaces.

4. The common-aperture simultaneous multifunctional phased array antenna beam control system according to claim 1, characterized in that: The N TR components include phase shifters and attenuators, and perform data communication with the wave control sub-board through a standard communication protocol SPI interface and are controlled by the wave control sub-board.

5. The common-aperture simultaneous multifunctional phased array antenna beam control system according to claim 4, characterized in that: The wave control sub-board is provided with a non-volatile memory for storing the calibration information of the amplitude and phase of each TR channel.

6. The common aperture simultaneous multifunctional phased array antenna beam control system according to claim 5, characterized in that: The beam control sub-board is provided with a beam control chip to complete the compensation of calibration data and the calculation of beam scanning angle, and convert the calculation result into phase control information of each TR component.

7. The common aperture simultaneous multifunctional phased array antenna beam control system according to claim 6, characterized in that: The software built into the wave control sub-board includes an interface module, a calculation module, a communication module and a control module.

8. The common aperture simultaneous multifunctional phased array antenna beam control system according to claim 3, characterized in that: The wave control motherboard integrates a main control chip, a non-volatile memory, a clock device, an interface chip, a power chip, a functional module and a sensor.

9. The common-aperture simultaneous multifunctional phased array antenna beam control system according to claim 1, characterized in that: The channel receives control commands from outside the antenna and enters the antenna through the RS422 interface. After being parsed by the main control chip, the commands are distributed to the daughter boards in parallel through several RS422 interfaces.

10. The common aperture simultaneous multifunctional phased array antenna beam control system according to claim 1, characterized in that: The system also includes a monitoring module, which is responsible for real-time monitoring of the working status of the antenna array and TR components. The monitoring module continuously evaluates the health of the system by collecting temperature, current and voltage parameters. Once an abnormality is detected, the monitoring module will immediately start the fault diagnosis program and send an alarm to the operator through the wave control system to ensure the safety and reliability of the system.

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