TR assembly control method

Abstract

The invention discloses a TR component control method. The TR component control method comprises the steps that write-in operation of a function register is completed through a three-wire SPI function register interface; writing and reading of a data input and output register are completed through a four-wire full duplex data register interface; selecting a data input / output register according to a corresponding function register, and writing the data into a beam position storage register; writing the data of the selected beam position storage register into a control output register; the transmission pulse width and duty ratio protection module detects the input width and duty ratio of an input transmission pulse modulation signal, and the AD sampling result protection module closes the output of the output transmission pulse width modulation signal according to the sampling result of the multi-channel AD sampling module if the sampling result exceeds a protection threshold set in a function register; and the register / AD sampling result read-back logic loads the sampling results of the registers and the AD sampling module to the data input and output register according to the return data type set in the function register.

Description

Technical Field

[0001] The present invention relates to the field of active phased array antennas, and particularly to a control method for a TR component. Background Art

[0002] The phased array radar antenna takes a large number of TR components as the core. The TR components are mainly composed of radio frequency devices such as phase shifters, attenuators, switches, and power amplifiers. Under the control of the control circuit, the radio frequency channels of each TR component in the entire phased array radar antenna work together to complete functions such as antenna transceiver.

[0003] The previous control circuit used one chip to control one radio frequency channel, could only store a set of wave position data, and did not have the functions of detecting the working state of the TR component and protecting the TR component.

[0004] The TR components of the new phased array radar have improved system integration, usually consisting of 4 independent radio frequency channels and a common radio frequency channel. All radio frequency channels require corresponding control circuits; at the same time, the phased array radar needs to quickly switch between multiple antenna wave positions, and multiple wave position data need to be stored in the TR component control chip; it is necessary to monitor the working temperature, voltage and other states of the TR components in real time, and protect the TR components when there are safety risks. Summary of the Invention

[0005] Aiming at the problems existing in the prior art, the present invention provides a control method that meets the control requirements of the TR components of the new phased array radar. An independent TR component control chip can be developed to realize the control of the TR components of the new phased array radar, or a control radio frequency integrated multifunctional chip can be developed as the core chip of the TR components of the new phased array radar.

[0006] The object of the present invention is achieved through the following technical solutions.

[0007] A control method for a TR component, the steps include:

[0008] 1) Complete the write operation of the function register through the three-wire SPI function register interface;

[0009] 2) Complete the write and read of the data input / output register through the four-wire full-duplex data register interface;

[0010] 3) Write the data input / output register into the wave position storage register according to the corresponding function register selection to achieve multi-wave position storage;

[0011] 4) Write the data of the selected wave position storage register into the control output register according to the corresponding function register selection;

[0012] 5) The emission pulse width and duty cycle protection module detects the width and duty cycle of the input emission pulse modulation signal. If they exceed the protection threshold set in the function register, the output emission pulse width modulation signal is turned off to protect the TR component.

[0013] 6) The multi-channel AD sampling module polls and samples multiple analog input channels to monitor the temperature, supply voltage, input signal power, and output signal power information of the TR component.

[0014] 7) Based on the sampling results of the multi-channel AD sampling module, the AD sampling result protection module turns off the output emission pulse width modulation signal if they exceed the protection threshold set in the function register to protect the TR component.

[0015] 8) According to the return data type set in the function register, the register / AD sampling result readback logic loads the sampling results of each register and the AD sampling module into the data input / output register and outputs them through the four-wire full-duplex data register interface.

[0016] Multiple independent RF channel controls: To meet the control requirements of multi-channel TR components, in addition to several independent RF channel controls, common RF channel control is also provided simultaneously, and a single control chip can meet all the control requirements of the TR component.

[0017] Multiple function registers: Used to configure the input wave position, output wave position, emission pulse width, duty cycle protection parameters, temperature / voltage protection parameters of the TR component to adapt to the control requirements of different models of TR components.

[0018] Multi-wave position storage and fast switching: Multiple groups of wave position data are stored in the chip, and each time a group of wave position data is selected from the stored data to control the operation of the TR component, enabling the phased array antenna to quickly switch from one wave position to another.

[0019] Multi-channel AD sampling: Realize the full-method monitoring of the health status of the TR component.

[0020] Emission pulse width and duty cycle protection function: By detecting the signal width and duty cycle of the emission pulse width modulation signal and based on the parameters set in the function register, the pulse width and duty cycle protection of the emission pulse are realized to ensure the safety of the emission tube in the TR component.

[0021] Analog quantity protection function: Based on the AD sampling results and the protection threshold set in the function register, the TR component is protected to ensure the safety of the TR component.

[0022] Chip working state feedback function: According to the settings of the function register, the stored content of the corresponding register or the AD sampling results are fed back, enabling the system to comprehensively understand the working state of the TR component.

[0023] Compared with the prior art, the advantages of the present invention are as follows: multiple independent radio frequency channel controls; multi-waveform storage; multi-channel AD sampling; transmit pulse width and duty cycle protection functions; analog quantity (temperature, voltage, power) protection functions; chip operating state feedback function. The control chip designed according to the present invention is applicable to a 4-channel TR module. In addition to the 4 independent radio frequency channels, the 5th channel control signal provided by this method is used to control the radio frequency devices on the common channel after the synthesis of the 4 channels, realizing the control of the TR module with a single chip. The TR module adopting the present invention has the ability of multi-waveform fast switching and can meet the requirements of new phased array antennas. The present invention provides a health state acquisition function for the TR module, and the system can monitor the operating state of the TR module in real time. The present invention provides multiple protection methods for the TR module to protect the safety of the TR module in case of anomalies. Description of the Drawings

[0024] Figure 1 It is a block diagram of the three-wire SPI interface (1) and the function register (2) of the present invention.

[0025] Figure 2 It is a block diagram of the four-wire SPI interface (3), the input / output register (4), the register, and the AD sampling result of the present invention.

[0026] Figure 3 It is a block diagram of the input / output register (4), the waveform register (5), and the control output register of the present invention.

[0027] Figure 4 It is a block diagram of the transmit pulse width and duty cycle protection module (7), the multi-channel AD sampling module (8), and the AD sampling result protection module (9) of the present invention.

[0028] Figure 5 It is the overall system architecture diagram of the present invention.

[0029] Figure 6 It is a 4-channel TR module applied to a phased array antenna in Embodiment 1.

[0030] Figure 7 It is a two-channel TR module applied to a phased array antenna in Embodiment 2.

[0031] Figure 8 It is a 4-channel TR module applied to a phased array antenna in Embodiment 3. Detailed Embodiments

[0032] The present invention will be described in detail below in conjunction with the drawings of the specification and specific embodiments.

[0033] Embodiment 1: An independent TR module control chip developed based on the present invention:

[0034] (1) Three-wire SPI function register interface;

[0035] (2) 16 8-bit function registers;

[0036] (3) Four-wire full-duplex data register interface

[0037] (4) 5-channel 26-bit data input / output register;

[0038] (5) 32 groups of 5-channel 26-bit wave position storage registers;

[0039] (6) 5-channel 26-bit control output register;

[0040] (7) Transmit pulse width and duty cycle protection module;

[0041] (8) 8-channel AD sampling module;

[0042] (9) AD sampling result protection module;

[0043] (10) Chip working status / AD sampling result readback logic;

[0044] (11) Transmit pulse width modulation signal input;

[0045] (12) Transmit pulse width modulation signal output.

[0046] A 4-channel TR module applied to a phased array antenna, as Figure 6 shown.

[0047] The specific working process is as follows:

[0048] 1. Complete the write operation of the function register (2) through the three-wire SPI interface (1);

[0049] 2. Complete the write and read of the data input / output register (4) through the four-wire SPI interface (3);

[0050] 3. Write the data input / output register (4) into the wave position storage register (5) according to the selection of the corresponding function register (2) to achieve multi-wave position storage;

[0051] 4. Write the data of the selected wave position storage register (5) into the control output register (6) according to the selection of the corresponding function register (2);

[0052] 5. The transmit pulse width and duty cycle protection module (7) detects the width and duty cycle of the input transmit pulse modulation signal (11). If it exceeds the protection threshold set in the function register (2), the output transmit pulse width modulation signal (12) is turned off to achieve the protection of the TR module;

[0053] 6. Multi-channel AD sampling module (8) polls and samples multiple analog input channels to monitor information such as the temperature, supply voltage, input signal power, and output signal power of the TR component;

[0054] 7. The AD sampling result protection module (9) closes the output transmit pulse width modulation signal (12) according to the sampling result of the AD sampling module (8) if it exceeds the protection threshold set in the function register (2), realizing the protection of the TR component;

[0055] 8. The register / AD sampling result read-back logic (10) loads the sampling results of each register (2)(4)(5)(6) and the AD sampling module (8) into the data input / output register according to the return data type set in the function register (2) and outputs them through the four-wire SPI interface (3);

[0056] Embodiment 2: An independent TR component control chip developed based on the present invention:

[0057] (1) Three-wire SPI function register interface;

[0058] (2) 16 8-bit function registers;

[0059] (3) Four-wire full-duplex data register interface

[0060] (4) 3-channel 26-bit data input / output register;

[0061] (5) 32 groups of 3-channel 26-bit wave position storage registers;

[0062] (6) 3-channel 26-bit control output register;

[0063] (7) Transmit pulse width and duty cycle protection module;

[0064] (8) 8-channel AD sampling module;

[0065] (9) AD sampling result protection module;

[0066] (10) Chip working state / AD sampling result read-back logic;

[0067] (11) Transmit pulse width modulation signal input;

[0068] (12) Transmit pulse width modulation signal output.

[0069] Applied to the dual-channel TR component of the phased array antenna, as Figure 7 shown.

[0070] Embodiment 3: An integrated multi-functional chip developed based on the present invention:

[0071] (1) Three-wire SPI functional register interface;

[0072] (2) 16 8-bit functional registers;

[0073] (3) Four-wire full-duplex data register interface

[0074] (4) 5-channel 26-bit data input / output register;

[0075] (5) 32 groups of 5-channel 26-bit wave position storage registers;

[0076] (6) 5-channel 26-bit control output register;

[0077] (7) Transmit pulse width and duty cycle protection module;

[0078] (8) 2-channel AD sampling module;

[0079] (9) AD sampling result protection module;

[0080] (10) Chip working status / AD sampling result readback logic;

[0081] (11) Transmit pulse width modulation signal input;

[0082] (12) Transmit pulse width modulation signal output;

[0083] (13) 4-channel RF circuit.

[0084] A 4-channel TR module applied to a phased array antenna, as Figure 8 shown.

[0085] The working processes of Embodiment 2 and Embodiment 3 are the same as that of Embodiment 1.

Claims

1. A TR component control method, characterized by the steps include: 1) Complete the writing operation of the function register through the three-wire SPI function register interface; 2) Complete writing and reading of data input and output registers through a four-wire full-duplex data register interface; 3) The data input and output registers are selected according to the corresponding function registers and written into the wave storage registers to realize multi-wave storage; 4) According to the corresponding function register selection, write the data of the selected wave position storage register into the control output register; 5) The transmit pulse width and duty cycle protection module detects the width and duty cycle of the input transmit pulse modulation signal. If it exceeds the protection threshold set in the function register, the output transmit pulse width modulation signal output is turned off to protect the TR component; 6) Multi-channel AD sampling module, which performs polling sampling on multiple analog input channels and monitors the temperature, power supply voltage, input signal power, and output signal power information of the TR component; 7) The AD sampling result protection module turns off the output of the transmit pulse width modulation signal according to the sampling result of the multi-channel AD sampling module, if it exceeds the protection threshold set in the function register, to protect the TR component; 8) The register / AD sampling result readback logic loads the sampling results of each register and the AD sampling module into the data input and output register according to the return data type set in the function register, and outputs them through the four-wire full-duplex data register interface.

2. A TR component control method according to claim 1, characterized in that Multiple independent RF channel control: Meet the control requirements of multi-channel TR components. In addition to several independent RF channel controls, public RF channel control is also provided. A single control chip meets all control requirements of TR components.

3. A TR component control method according to claim 1, characterized in that Multiple function registers: used to configure the input wave position, output wave position, transmission pulse width, duty cycle protection parameters, temperature / voltage protection parameters of the TR component to meet the control requirements of different models of TR components.

4. A TR component control method according to claim 1, characterized in that Multi-wavelength storage and fast switching: Multiple sets of wavelength data are stored in the chip. Each time, one set is selected from the stored wavelength data to control the TR components to work, thus realizing fast switching of the phased array antenna from one wavelength to another.

5. A TR component control method according to claim 1, characterized in that Multi-channel AD sampling: realize full-method monitoring of the health status of TR components.

6. A TR component control method according to claim 1, characterized in that Transmitting pulse width and duty cycle protection function: By detecting the signal width and duty cycle of the transmitting pulse width modulation signal, the pulse width and duty cycle protection of the transmitting pulse is realized according to the parameters set in the function register to ensure the safety of the transmitting tube in the TR component.

7. A TR component control method according to claim 1, characterized in that Analog protection function: Based on the AD sampling results and the protection threshold set by the function register, the TR component is protected to ensure the safety of the TR component.

8. A TR component control method according to claim 1, characterized in that Chip working status feedback function: According to the setting of the function register, the storage content of the corresponding register or the AD sampling result is fed back, so that the system can fully grasp the working status of the TR component.

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