CN115267685B - Built-in microwave signal state data readback TR component wave control module - Google Patents
Built-in microwave signal state data readback TR component wave control module Download PDFInfo
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- CN115267685B CN115267685B CN202211165305.9A CN202211165305A CN115267685B CN 115267685 B CN115267685 B CN 115267685B CN 202211165305 A CN202211165305 A CN 202211165305A CN 115267685 B CN115267685 B CN 115267685B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
- G01S7/02—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S13/00
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/042—Programme control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors
- G05B19/0423—Input/output
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Abstract
The invention discloses a built-in TR component wave control module for microwave signal state data read-back, which comprises a receiving circuit (1), a wave control code processing circuit (2), a level conversion and driving circuit (3), a state data sampling circuit (6) for sampling microwave signal state data in real time, a read-back control circuit (7) for reading the microwave signal state data, and a state data transmitting circuit (8) for transmitting the microwave signal state data to a main control chip (4); the data input end of the read-back control circuit (7) is connected with the output end of the state data sampling circuit (6), the data output end of the read-back control circuit is connected with the input end of the state data sending circuit (8), and the instruction receiving end of the read-back control circuit is connected with the read-back control output end of the wave control code processing circuit (2). The built-in TR component wave control module for reading back the microwave signal state data can provide real and reliable microwave signal state data in real time.
Description
Technical Field
The invention belongs to the technical field of phased array radars, and particularly relates to a built-in TR component wave control module for reading back microwave signal state data.
Background
The TR component wave control module is an important component of a TR component which is a core component of a modern phased array radar. The main function of the device is to receive and analyze the wave control code from the main control chip, and the device is used for driving the radio frequency chip through level conversion and signal amplification so as to realize the transmission and reception of microwave signals.
As shown in fig. 1, the conventional TR module generally includes a receiving circuit, a wave control code processing circuit, and a level converting and driving circuit. The input end of the receiving circuit is connected with the main control chip, and the output end of the receiving circuit is connected with the input end of the wave control code processing circuit; the input end of the level conversion and drive circuit is connected with the output end of the wave control code processing circuit, and the output end of the level conversion and drive circuit is connected with the radio frequency chip. The receiving circuit is communicated with the main control chip and receives the wave control code sent by the main control chip; the wave control code processing circuit reads the wave control code from the receiving circuit, analyzes the wave control code and obtains information for controlling the state of the microwave signal; the level conversion and drive circuit performs level conversion and signal amplification and outputs microwave signal state data to the radio frequency chip so as to drive the radio frequency chip. The microwave signal state data output by the level conversion and drive circuit to the radio frequency chip comprises a working state, a signal phase deviation value and a signal amplitude attenuation amount. The operating state is typically one of transmitting or receiving.
Theoretically, the state data of the microwave signal transmitted or received by the rf chip is controlled by the wave control code of the main control chip, and should be consistent with the state data of the microwave signal expected by the wave control code and obtained by the rf chip. However, due to various uncertainties of signal transmission and processing links, the state data of microwave signals transmitted or received by the radio frequency chip is not reliable in practice only by deducing from the wave control code theory. Meanwhile, in the actual operation, test debugging, troubleshooting and other processes of the phased array radar, the main control chip often needs to inquire the current actual microwave signal state data of the TR component. According to the existing TR module structure shown in fig. 1, the real and reliable requirements for acquiring the microwave signal state data of the TR module in real time cannot be met.
Disclosure of Invention
The invention aims to provide a built-in TR component wave control module for reading back microwave signal state data, which can provide real and reliable microwave signal state data in real time.
The technical solution for realizing the purpose of the invention is as follows:
a built-in microwave signal state data read-back TR component wave control module comprises: the receiving circuit is used for communicating with the main control chip and receiving the wave control code sent by the main control chip; the wave control code processing circuit is used for reading the wave control code from the receiving circuit, analyzing the wave control code and acquiring microwave signal state control information; the level conversion and drive circuit is used for level conversion and signal amplification so as to drive the radio frequency chip; the input end of the wave control code processing circuit is connected with the output end of the receiving circuit, and the output end of the wave control code processing circuit is connected with the input end of the level conversion and driving circuit; the input end of the receiving circuit is used for being connected with the main control chip; the output end of the level conversion and drive circuit is used for being connected with the radio frequency chip;
further comprising: the state data sampling circuit is used for sampling the microwave signal state data output by the level conversion and driving circuit in real time; the read-back control circuit is used for reading the microwave signal state data from the state data sampling circuit according to the microwave signal state data read-back instruction; the state data transmitting circuit is used for transmitting the microwave signal state data read by the readback control circuit to the main control chip; the data input end of the read-back control circuit is connected with the output end of the state data sampling circuit, the data output end of the read-back control circuit is connected with the input end of the state data sending circuit, the instruction receiving end of the read-back control circuit is connected with the read-back control output end of the wave control code processing circuit, and the output end of the state data sending circuit is connected with the state data receiving end of the main control chip.
Compared with the prior art, the invention has the remarkable advantages that:
real and reliable microwave signal state data can be provided in real time. According to the invention, the microwave signal state data read-back circuit is arranged in the TR component wave control module, the main control chip can send the microwave signal state data read-back instruction at any time according to the requirement to obtain the microwave signal state data output from the level conversion and driving circuit 3, and the state data is the actual state data of the microwave signal actually sent or received by the TR component, so that the microwave signal state data read-back circuit is real and reliable. The problem that real and reliable TR component microwave signal state data cannot be obtained in real time in the prior art is solved.
The invention is described in further detail below with reference to the figures and the detailed description.
Drawings
Fig. 1 is a block diagram of an internal structure of a TR module and a structure thereof connected with a main control chip and a radio frequency chip in the prior art.
Fig. 2 is a structural block diagram of a TR module wave control module with built-in microwave signal state data read-back.
Fig. 3 is a working schematic diagram of the TR module with built-in microwave signal status data read-back according to the present invention.
In the figure, 1 receiving circuit, 2 wave control code processing circuit, 21 input terminal, 22 output terminal, 23 read-back control output terminal, 3 level conversion and drive circuit, 31 TTL signal input terminal, 32 second output terminal, 33 first output terminal, 4 main control chip, 45 state data receiving terminal, 5 radio frequency chip, 6 state data sampling circuit, 7 read-back control circuit, 71 data output terminal, 72 data input terminal, 73 instruction receiving terminal, 8 state data sending circuit.
Detailed Description
As shown in fig. 2, the TR module for built-in microwave signal status data read-back of the present invention includes a receiving circuit 1, a wave control code processing circuit 2, and a level conversion and driving circuit 3.
The input end 21 of the wave control code processing circuit 2 is connected with the output end of the receiving circuit 1, and the output end 22 thereof is connected with the input end of the level conversion and drive circuit 3;
the input end of the receiving circuit 1 is used for being connected with the main control chip 4;
the output end of the level conversion and drive circuit 3 is used for connecting with the radio frequency chip 5.
The receiving circuit 1 is used for communicating with the main control chip 4 and receiving the wave control code sent by the main control chip 4; the signal communication form can adopt any existing form such as SPI, I2C or UART.
And the wave control code processing circuit 2 is used for reading the wave control code from the receiving circuit 1, analyzing the wave control code and acquiring microwave signal state control information from the wave control code.
The microwave signal state control information generally comprises an operating state, a phase offset value and an amplitude attenuation amount.
The working state is divided into two states of receiving and transmitting.
The phase deviation value and the amplitude attenuation amount are the amounts for shifting the phase of the microwave signal and attenuating the signal amplitude of the assembly according to the detection requirement of the whole radar signal. Is the required value, i.e. the value that is desired to be reached.
As a refinement of the present invention, the microwave signal state control information may further include a microwave signal state data read-back instruction.
The level conversion and driving circuit 3 is used for level conversion and signal amplification to drive the radio frequency chip 5.
Usually, the rf chip 5 operates in a negative voltage mode, and the wave control code transmitted by the main control chip 4 is a TTL signal. The signal driving the rf chip 5 must be in a negative voltage form to drive the microwave rf chip. The ripple control module needs to convert the positive voltage TTL signal into a negative voltage driving signal with the same meaning. The TTL signal processed by the wave control code processing circuit 2 is input through the TTL signal input terminal 31 of the level shift and driving circuit 3, the TTL signal is converted into a negative voltage signal through the level shift circuit 3, and the converted negative voltage signal is further amplified into an electrical signal sufficient for driving the rf chip 5, and then the electrical signal is transmitted to the rf chip 5 through the first output terminal 33.
Those skilled in the art will appreciate that the master control chip 4 is not included in the TR module, and is typically part of a phased array radar wavecontroller.
As shown in fig. 2, as an important improvement to the prior art, the TR module for reading back the microwave signal status data in the present invention further includes:
the state data sampling circuit 6 is used for sampling the microwave signal state data output by the level conversion and drive circuit 3;
the read-back control circuit 7 is used for reading the microwave signal state data from the state data sampling circuit 6 according to the microwave signal state data read-back instruction;
the state data transmitting circuit 8 is used for transmitting the microwave signal state data read by the read-back control circuit 7 to the main control chip 4;
the data input end 72 of the read-back control circuit 7 is connected with the output end of the state data sampling circuit 6, the data output end 71 of the read-back control circuit 7 is connected with the input end of the state data sending circuit 8, the instruction receiving end 73 of the read-back control circuit 7 is connected with the read-back control output end 23 of the wave control code processing circuit 2, and the output end of the state data sending circuit 8 is connected with the state data receiving end 45 of the main control chip 4.
The input of the status data sampling circuit 6 is connected to the second output 32 of the level shifting and driving circuit 3. The first output terminal 33 of the level shift and drive circuit 3 is used for connecting with the rf chip 5. The second output terminal 32 of the level shift and drive circuit 3 is connected to the first output terminal 33, so that the data sampled from the second output terminal 32 of the level shift and drive circuit 3 is the same as the data output from the first output terminal 33.
The microwave signal state data comprises a working state, a phase deviation value and an amplitude attenuation amount.
The working state is one of a receiving state or a transmitting state;
when the working state is a receiving state, the read-back microwave signal state data simultaneously comprises a phase deviation value and an amplitude attenuation amount;
when the working state is the emission state, the read-back microwave signal state data only contains the phase deviation value.
The microwave signal state data is an actual value of corresponding data in the microwave signal state control information after being transmitted and processed through a link formed by the receiving circuit 1, the wave control code processing circuit 2 and the level conversion and driving circuit 3. In most cases both should be the same. However, when the transmission and processing links of the wave control code have problems, the two links may have differences. Therefore, on one hand, the microwave signal state can be known and inquired through the microwave signal state data, and on the other hand, whether the transmission and processing link of the wave control code has problems can be judged through comparing whether the microwave signal state data and the microwave signal state data have differences.
The working principle of the built-in TR component wave control module for reading back microwave signal state data is shown in fig. 3.
In fig. 3, the wave control module receives and analyzes the wave control code from the main control chip 4, and the wave control code is subjected to level conversion and signal amplification to drive the radio frequency chip 5, so as to realize the transmission and reception of the microwave signal.
When actual microwave signal state data needs to be acquired, the wave control code sent by the main control chip 4 includes microwave signal state control information such as a normal working state, a phase offset value, an amplitude attenuation amount and the like, and also includes a microwave signal state data read-back instruction. The read-back control circuit 7 reads the microwave signal state data from the state data sampling circuit 6 according to the microwave signal state data read-back instruction which is obtained by analyzing the wave control code from the wave control code by the wave control code processing circuit 2; and sends the data to the main control chip 4 through the state data sending circuit 8; the state data sampling circuit 6 samples the microwave signal state data output by the level conversion and drive circuit 3 in real time, and stores the sampled data in a cache, so that the read-back control circuit 7 can read the sampled data at any time.
The output end of the level conversion and drive circuit 3 is directly connected with the radio frequency chip 5. The microwave signal state data of the output end of the level conversion and driving circuit 3 is acquired to represent the microwave signal state data of the radio frequency chip 5, and the data is real and reliable.
The microwave signal state data output by the level conversion and drive circuit 3 is read back, comprises the actually output working state, the phase deviation value and the amplitude attenuation amount, and is compared with the working state, the phase deviation value and the amplitude attenuation amount in the microwave signal state control information contained in the wave control code, so that whether a problem exists in a wave control code signal transmission path or not can be judged. After the wave control code is sent, whether the physical state of the microwave signal of the rear-stage radio frequency chip is consistent with the sent wave control code or not can be judged through the read-back data, and the method is similar to a self-checking function and is particularly suitable for debugging, troubleshooting and the like of a TR component. The method ensures that the phased array radar can transmit and receive microwave signals according to the real requirement of the main control chip, and improves the detection precision of the radar.
The state data sampling circuit 6, the read-back control circuit 7 and the state data sending circuit 8 can be implemented by any conventional specific circuit with the same function in the prior art, so as to be integrated in the original wave control module. For example, some types of chips of the national institute of technology, tenbang, jiangsu, have integrated TR module wave control modules with microwave signal state data read-back function. Practical use shows that the microwave signal state data can be successfully provided in real time.
Claims (1)
1. A built-in microwave signal state data readback TR component wave control module includes:
the receiving circuit (1) is used for communicating with the main control chip (4) and receiving the wave control code sent by the main control chip (4);
the wave control code processing circuit (2) is used for reading the wave control code from the receiving circuit (1), analyzing the wave control code and acquiring microwave signal state control information;
the level conversion and drive circuit (3) is used for level conversion and signal amplification to drive the radio frequency chip (5);
the input end of the wave control code processing circuit (2) is connected with the output end of the receiving circuit (1), and the output end of the wave control code processing circuit is connected with the input end of the level conversion and drive circuit (3);
the input end of the receiving circuit (1) is connected with the main control chip (4);
the output end of the level conversion and drive circuit (3) is used for being connected with the radio frequency chip (5);
it is characterized by also comprising:
the state data sampling circuit (6) is used for sampling the microwave signal state data output by the level conversion and driving circuit (3) in real time;
the read-back control circuit (7) is used for reading the microwave signal state data from the state data sampling circuit (6) according to the microwave signal state data read-back instruction;
the state data transmitting circuit (8) is used for transmitting the microwave signal state data read by the read-back control circuit (7) to the main control chip (4);
the data input end of the read-back control circuit (7) is connected with the output end of the state data sampling circuit (6), the data output end of the read-back control circuit (7) is connected with the input end of the state data sending circuit (8), the instruction receiving end of the read-back control circuit (7) is connected with the read-back control output end of the wave control code processing circuit (2), and the output end of the state data sending circuit (8) is connected with the state data receiving end of the main control chip (4);
the microwave signal state control information comprises a working state, a phase deviation value, an amplitude attenuation amount and a microwave signal state data read-back instruction;
the microwave signal state data comprises a working state, a phase deviation value and an amplitude attenuation amount;
the working state is one of a receiving state or a transmitting state;
when the working state is a receiving state, the microwave signal state data simultaneously comprises a phase deviation value and an amplitude attenuation amount;
when the working state is the emission state, the microwave signal state data only contains the phase offset value.
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