Sensitivity-power control-based simultaneous receiving and transmitting system design method

Abstract

The invention belongs to the field of electronic information, and particularly relates to a simultaneous receiving and transmitting system design method based on sensitivity-power control, which comprises the following steps: S1, receiving a transmitting signal of a target radar, measuring the wavelength of the transmitting signal, and measuring the power of the received signal of the target radar; s2, presetting a receiver attenuation amount M and a transmitting power adjusting amount, combining the signal power of the target radar to judge whether a receiving and transmitting simultaneous condition is satisfied, if the condition is satisfied, skipping to S3, and if the condition is not satisfied, adjusting the receiver attenuation amount M and the transmitting power adjusting amount according to a preset condition; s3, judging a target radar type according to the wavelength, and selecting a corresponding preset distance value according to the target radar type; according to the signal power and a preset distance value, whether the platform is in receiving priority or transmitting priority is judged; and S4, when the platform is in receiving priority, the platform receiver and the transmitter respectively work according to a first scheme, and when the platform is in transmitting priority, the platform receiver and the transmitter respectively work according to a second scheme, thereby realizing simultaneous receiving and transmitting.

Description

Technical Field

[0001] This application belongs to the field of electronic information, and specifically relates to a design method for a simultaneous transmit and receive system based on sensitivity-power control. Background Technology

[0002] Simultaneous transmission and reception systems play a crucial role in improving the performance of electronic equipment. Traditional electronic jamming systems often suffer from problems such as the inability to transmit and receive signals simultaneously, or mutual constraints on transmission and reception performance. Tasks requiring the simulation of real aircraft radar characteristics or the implementation of jamming typically necessitate real-time analysis and dynamic response to enemy radar signals. Time-division multiplexing requires shutting down the receiving channel during signal transmission to prevent interference, which results in the inability to receive target echo signals during transmission, reducing the system's real-time target monitoring capabilities.

[0003] With technological advancements, simultaneous transmission and reception systems have emerged. Some patents propose simultaneous transmission and reception systems that employ time-division multiplexing, achieving simultaneous transmission and reception by alternating signal transmission and reception over time. However, this approach has significant limitations; its time resolution is restricted by the system clock accuracy and signal processing speed, making it difficult to quickly and accurately capture and process signals in complex electromagnetic environments.

[0004] Some patented simultaneous transmit and receive systems employ frequency division multiplexing (FDM) technology, allocating transmit and receive signals to different frequency bands for transmission. However, in practical applications, this method is limited by frequency band resources, which are becoming increasingly scarce. Furthermore, FDM is susceptible to adjacent-channel interference, reducing the system's reliability and stability.

[0005] Therefore, developing an electronic jamming system that can effectively solve the above problems, has simple control, stable power regulation, and can stably achieve simultaneous transmission and reception is of great practical significance. Summary of the Invention

[0006] To address the aforementioned problems, this application provides a design method for a simultaneous transmit and receive system based on sensitivity-power control, comprising:

[0007] S1. Receive the target radar's transmitted signal and measure its wavelength. And measure the signal power received from the target radar. ;

[0008] S2. Obtain the receiver system sensitivity of this platform. and the maximum transmit power of the transmitter on this platform. Preset receiver attenuation M and transmit power adjustment N, combined with the target radar signal power. Determine whether the conditions for simultaneous transmission and reception are met. If the conditions are met, jump to S3. If not, adjust the receiver attenuation M and the transmit power adjustment N according to the preset conditions.

[0009] S3, according to wavelength Determine the target radar type and select the corresponding preset range value R based on the target radar type. i According to signal power And a preset distance value is used to determine whether this platform prioritizes receiving or sending.

[0010] S4. When the platform prioritizes receiving, the platform receiver and transmitter operate according to the first scheme respectively. When the platform prioritizes transmitting, the platform receiver and transmitter operate according to the second scheme respectively.

[0011] Preferably, the simultaneous transmission and reception condition is:

[0012] ;

[0013] in, This is the suppression coefficient. This represents the platform's RCS value. This refers to system isolation.

[0014] Preferably, the preset conditions for adjusting the receiver attenuation M and the transmit power adjustment N are as follows: .

[0015] Preferably, the specific method for determining whether this platform prioritizes receiving or sending is as follows:

[0016] When signal power This platform prioritizes submissions when the following formulas are met;

[0017] ;

[0018] When signal power This platform prioritizes receiving data when the following formulas are met;

[0019] .

[0020] Preferably, S4 specifically includes:

[0021] When the current system is determined to have receive priority, update the transmit power adjustment N and the receiver attenuation M according to the following formulas:

[0022] ;

[0023] At this time, the transmission power P T for:

[0024] ;

[0025] At this time P min_m The adjusted receiver sensitivity:

[0026] ;

[0027] Preferably, when the current system is determined to have transmit priority, the transmit power adjustment N and the receiver attenuation M are updated according to the following formula:

[0028] ;

[0029] At this time, the transmission power P T for:

[0030] ;

[0031] At this time P min_m The adjusted receiver sensitivity:

[0032] . Attached Figure Description

[0033] Figure 1 This is a flowchart of a simultaneous transmit and receive system design method based on sensitivity-power control. Detailed Implementation

[0034] To make the objectives, technical solutions, and advantages of this application clearer, the technical solutions in the embodiments of this application will be described in more detail below with reference to the accompanying drawings. In the drawings, the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The described embodiments are only some, not all, of the embodiments of this application. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this application, and should not be construed as limiting this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application. The embodiments of this application will be described in detail below with reference to the accompanying drawings. Figure 1 To address the aforementioned problems, this application provides a design method for a simultaneous transmit and receive system based on sensitivity-power control, comprising:

[0035] S1. Receive the target radar's transmitted signal and measure its wavelength. And measure the signal power received from the target radar. ;

[0036] S2. Obtain the receiver system sensitivity of this platform. and the maximum transmit power of the transmitter on this platform. Preset receiver attenuation M and transmit power adjustment N, combined with the target radar signal power. Determine whether the conditions for simultaneous transmission and reception are met. If the conditions are met, jump to S3. If not, adjust the receiver attenuation M and the transmit power adjustment N according to the preset conditions.

[0037] S3, according to wavelength Determine the target radar type and select the corresponding preset range value R based on the target radar type. i According to signal power And a preset distance value is used to determine whether this platform prioritizes receiving or sending.

[0038] S4. When the platform prioritizes receiving, the platform receiver and transmitter operate according to the first scheme. When the platform prioritizes transmitting, the platform receiver and transmitter operate according to the second scheme, wherein as the distance to the object increases, P... r Increase, and at the same time, the required P T It is also necessary to increase the receiver attenuation M to control the sensitivity, adjust the transmit power by controlling N, and update the transmit and receive priority judgment conditions to achieve dynamic balance and realize simultaneous transmit and receive by the receiver.

[0039] Preferably, the simultaneous transmission and reception condition is:

[0040] ;

[0041] in, This is the suppression coefficient. This represents the platform's RCS value. This refers to system isolation.

[0042] Preferably, the preset conditions for adjusting the receiver attenuation M and the transmit power adjustment N are as follows:

[0043] ,in The system isolation is defined as N+M, which can be equivalent to increasing the system isolation. Simultaneous transmission and reception can be achieved by controlling the sensitivity M and N.

[0044] Preferably, the specific method for determining whether this platform prioritizes receiving or sending is as follows:

[0045] When signal power This platform prioritizes submissions when the following formulas are met;

[0046] ;

[0047] Specifically, for different objects, the distance is used to determine the priority of sending, and the judgment condition is as follows:

[0048] ;

[0049] in This refers to the receiver system sensitivity, which is typically a fixed value once the receiver design is complete. Where B is the receiver bandwidth and NF is the noise figure. The minimum signal-to-noise ratio required for measurability; where , indicating in Prioritize receiving items outside the designated distance.

[0050] When signal power This platform prioritizes receiving data when the following formulas are met;

[0051] ;

[0052] Specifically: .

[0053] Preferably, S4 specifically includes:

[0054] When the current system is determined to have receive priority, update the transmit power adjustment N and the receiver attenuation M according to the following formulas:

[0055] ;

[0056] At this time, the transmission power P T for:

[0057] ;

[0058] At this time P min_m The adjusted receiver sensitivity:

[0059] ;

[0060] Preferably, when the current system is determined to have transmit priority, the transmit power adjustment N and the receiver attenuation M are updated according to the following formula:

[0061] ;

[0062] At this time, the transmission power P T for:

[0063] ;

[0064] At this time P min_m The adjusted receiver sensitivity:

[0065] ;

[0066] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A design method for a simultaneous transmit / receive system based on sensitivity-power control, characterized in that, include: S1. Receive the target radar's transmitted signal and measure its wavelength. And measure the signal power received from the target radar. ; S2. Obtain the receiver system sensitivity of this platform. and the maximum transmit power of the transmitter on this platform. ; Preset receiver attenuation M and transmit power adjustment N, combined with the target radar signal power Determine whether the conditions for simultaneous transmission and reception are met. If the conditions are met, jump to S3. If not, adjust the receiver attenuation M and the transmit power adjustment N according to the preset conditions. S3, according to wavelength Determine the target radar type and select the corresponding preset range value R based on the target radar type. i According to signal power And a preset distance value is used to determine whether this platform prioritizes receiving or sending. S4. When the platform prioritizes receiving, the platform receiver and transmitter operate according to the first scheme respectively. When the platform prioritizes transmitting, the platform receiver and transmitter operate according to the second scheme respectively.

2. The design method for a simultaneous transmit / receive system based on sensitivity-power control as described in claim 1, characterized in that, The condition for simultaneous transmission and reception is: ； in, This is the suppression coefficient. This represents the platform's RCS value. This refers to system isolation.

3. The design method for a simultaneous transmit / receive system based on sensitivity-power control as described in claim 2, characterized in that, The preset conditions for adjusting the receiver attenuation M and the transmit power adjustment N are as follows: .

4. The design method for a simultaneous transmit / receive system based on sensitivity-power control as described in claim 3, characterized in that, The specific method for determining whether this platform prioritizes receiving or sending is as follows: When signal power This platform prioritizes submissions when the following formulas are met; ； When signal power This platform prioritizes receiving data when the following formulas are met; 。 5. The design method for a simultaneous transmit / receive system based on sensitivity-power control as described in claim 4, characterized in that, S4 specifically includes: When the current system is determined to have receive priority, update the transmit power adjustment N and the receiver attenuation M according to the following formulas: ； At this time, the transmission power P T for: ； At this time P min_m The adjusted receiver sensitivity: 。 6. The design method for a simultaneous transmit / receive system based on sensitivity-power control as described in claim 5, characterized in that, When the current system is determined to have transmit priority, update the transmit power adjustment N and the receiver attenuation M according to the following formulas: ； At this time, the transmission power P T for: ； At this time P min_m The adjusted receiver sensitivity: 。

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