CN115421103B - Low-cost high-power full polarization system - Google Patents

Abstract

The invention relates to a low-cost high-power full polarization system, which comprises a first phase modification module, a first transceiver module, a second phase modification module, a third phase modification module, a second transceiver module, a fourth phase modification module, a power distribution module and a power synthesis module, wherein the first transceiver module is connected with the first phase modification module; the power distribution module is respectively connected with the first phase modification module and the third phase modification module, the power synthesis module is respectively connected with the second phase modification module and the fourth phase modification module, the first phase modification module is connected with the receiving end of the first transceiver module, the second phase modification module is connected with the output end of the first transceiver module, the third phase modification module is connected with the receiving end of the second transceiver module, the fourth phase modification module is connected with the output end of the second transceiver module, and the first transceiver module is arranged in an orthogonal direction relative to the second transceiver module. The method solves the problem that the signal of the electromagnetic wave can not realize free conversion of various polarization modes under the condition that the total power of radar emission is unchanged.

Description

A low-cost, high-power, fully polarized system

Technical Field

The present invention relates to the field of radar polarization technology, and in particular to a low-cost, high-power, fully polarized system.

Background technique

The polarization mode of radar is to detect the target by controlling the polarization state of electromagnetic waves, so as to carry out research on the polarization characteristics of the target. In the same model of radar products, there are two signal transceivers. For the two signal transceivers, the phases of the signals received are fixed. Therefore, the radar product can only produce one polarization mode, such as linear polarization in one direction, circular polarization in one rotation direction, or elliptical polarization in one direction. Therefore, when the total power of the radar transmission remains unchanged, the electromagnetic wave signal cannot realize the free transformation of various polarization modes.

Summary of the invention

In order to solve the problem that the electromagnetic wave signal cannot realize the free conversion of various polarization modes when the total power of radar transmission remains unchanged, the present invention provides a low-cost high-power full polarization system.

In order to solve the above technical problems, the present invention provides a low-cost high-power full-polarization system, including a first phase modification module, a first transceiver module, a second phase modification module, a third phase modification module, a second transceiver module, a fourth phase modification module, a power distribution module and a power synthesis module;

The power distribution module is connected to the first phase modification module and the third phase modification module respectively, the power synthesis module is connected to the second phase modification module and the fourth phase modification module respectively, the first phase modification module is connected to the receiving end of the first transceiver module, the second phase modification module is connected to the output end of the first transceiver module, the third phase modification module is connected to the receiving end of the second transceiver module, the fourth phase modification module is connected to the output end of the second transceiver module, and the first transceiver module is arranged in an orthogonal direction relative to the second transceiver module;

A power distribution module, used for dividing the electromagnetic wave signal received by the radar into a first input signal and a second input signal according to preset requirements, and inputting the first input signal into the first phase modification module, and inputting the second input signal into the third phase modification module;

A first phase modification module, used to change the phase of the first input signal during transmission and output a third input signal;

A first transceiver module, configured to receive a third input signal, and convert the power of the third input signal into a first preset output power to obtain a first output signal;

A second phase modification module, used for changing the phase of the first output signal during transmission and outputting a second output signal;

A third phase modification module, used to change the phase of the second input signal during transmission and output a fourth input signal;

A second transceiver module is used to receive a fourth input signal, and convert the power of the fourth input signal into a second preset output power to obtain a third output signal;

a fourth phase modification module, used for changing the phase of the third output signal during transmission and outputting a fourth output signal;

The power synthesis module is used to synthesize the second output signal and the fourth output signal according to the third preset output power and output the target signal.

The beneficial effect of a low-cost, high-power, fully polarized system provided by the present invention is that when in use, the signal of the electromagnetic wave output by the radar is divided into a first input signal and a second input signal in a power distribution module according to preset requirements, the first input signal is input into the first phase modification module, the phase of the first input signal in transmission is changed, a third input signal is output, the third input signal is input into the first transceiver module, and the power of the third input signal is converted into a first preset output power to obtain a first output signal, similarly, the second input signal is input into the third phase modification module, the phase of the second input signal in transmission is changed, a fourth input signal is output, the fourth input signal is input into the second transceiver module, and the power of the fourth input signal is converted into a second preset output power to obtain a third output signal, based on the above, by using the first phase modification module and the third phase modification module, the phase of the first input signal and the second input signal in transmission is changed, that is, the phase of the electromagnetic wave signal (that is, the third input signal and the fourth input signal) received by the first transceiver module and the second transceiver module at the receiving end can be changed according to actual conditions, thereby changing the polarization mode of the radar product at the receiving end;

Similarly, for the output ends of the first transceiver module and the second transceiver module, the phases of the first output signal and the third output signal during transmission are changed through the second phase modification module and the fourth phase modification module, that is, the phases of the electromagnetic wave signals (that is, the second output signal and the fourth output signal) emitted by the first transceiver module and the second transceiver module at the transmitting end can be changed according to actual conditions, thereby changing the polarization mode of the radar product at the transmitting end, solving the problem that the electromagnetic wave signal cannot achieve free conversion of various polarization modes when the total power of the radar emission remains unchanged.

On the basis of the above technical solution, the low-cost high-power full-polarization system of the present invention can also be improved as follows.

Furthermore, the power distribution module is a power distributor.

The beneficial effect of adopting the above further scheme is: directly using the power divider to divert the electromagnetic wave signal received by the radar according to preset requirements, which is simple to operate, has a simple overall structure and lowers the cost.

Furthermore, the power synthesis module is a power synthesizer.

The beneficial effect of adopting the above further scheme is: directly using a power synthesizer to synthesize the second output signal and the fourth output signal emitted by the radar according to the third preset output power, and outputting the target signal, which is simple to operate, has a simple overall structure, and is lower in cost.

Furthermore, the first phase modification module, the second phase modification module, the third phase modification module and the fourth phase modification module are all TR component phase shifters.

The beneficial effect of adopting the above further scheme is: directly using the TR component phase shifter to change the phase of the first input signal, the first output signal, the second input signal and the third output signal, which is simple to operate, simple in overall structure and lower in cost.

Furthermore, the first transceiver module includes a first receiving switch, a first antenna and a first transmitting switch. The first receiving switch is connected to the first phase modification module, and the first transmitting switch is connected to the second phase modification module.

The beneficial effect of adopting the above-mentioned further scheme is that the first antenna and the second transceiver module are both used for receiving and transmitting electromagnetic wave signals, and the polarization mode of the receiving end changes with the phase of the third input signal received by the first antenna and the phase of the fourth input signal received by the second transceiver module, and the polarization mode of the transmitting end changes with the phase of the first output signal transmitted by the first antenna and the phase of the third output signal transmitted by the second transceiver module.

Furthermore, the second transceiver module includes a second receiving switch, a second antenna and a second transmitting switch. The second receiving switch is connected to the third phase modification module, and the second transmitting switch is connected to the fourth phase modification module.

The beneficial effect of adopting the above-mentioned further scheme is that the first transceiver module and the second antenna are both used for receiving and transmitting electromagnetic wave signals, and the polarization mode of the receiving end changes with the phase of the third input signal received by the first transceiver module and the phase of the fourth input signal received by the second antenna, and the polarization mode of the transmitting end changes with the phase of the first output signal transmitted by the first transceiver module and the phase of the third output signal transmitted by the second antenna.

Furthermore, the system also includes a first final stage power amplifier and a second final stage power amplifier, the receiving end of the first final stage power amplifier is connected to the first phase modification module, the output end of the first final stage power amplifier is connected to the first transceiver module, the receiving end of the second final stage power amplifier is connected to the third phase modification module, and the output end of the second final stage power amplifier is connected to the second transceiver module.

The beneficial effects of adopting the above further scheme are: using the first final stage power amplifier to achieve power amplification of the third input signal, thereby improving the transmission quality of the third input signal, and using the second final stage power amplifier to achieve power amplification of the fourth input signal, thereby improving the transmission quality of the fourth input signal.

Further, the system also includes a first low noise gainer and a second low noise gainer, the receiving end of the first low noise gainer is connected to the first transceiver module, the output end of the first low noise gainer is connected to the second phase modification module, the receiving end of the second low noise gainer is connected to the second transceiver module, and the output end of the second low noise gainer is connected to the fourth phase modification module;

A first low noise gain device, used to reduce noise in the first output signal;

The second low noise gain device is used to reduce the noise in the third output signal.

The beneficial effects of a low-cost, high-power, fully polarized system provided by the present invention are: a first low-noise gain device is used to perform noise reduction processing on a first output signal to improve the transmission quality of the first output signal; a second low-noise gain device is used to perform noise reduction processing on a third output signal to improve the transmission quality of the third output signal.

Furthermore, the system also includes a gain amplifier, which is connected to the power synthesis module and is used to enhance the signal strength of the target signal.

The beneficial effect of the low-cost high-power full-polarization system provided by the present invention is that the signal strength of the target signal is amplified by a gain amplifier, thereby improving the transmission quality of the target signal.

BRIEF DESCRIPTION OF THE DRAWINGS

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the present invention is further described below in conjunction with the accompanying drawings and embodiments.

FIG1 is a schematic structural diagram of a low-cost, high-power, fully polarized system according to an embodiment of the present invention.

Figure numerals: first phase modification module 1, first transceiver module 2, second phase modification module 3, third phase modification module 4, second transceiver module 5, fourth phase modification module 6, power distribution module 7, power synthesis module 8, first final stage power amplifier 9, second final stage power amplifier 10, first low noise gain device 11, second low noise gain device 12, gain amplifier 13, first receiving switch 14, first antenna 15, first transmitting switch 16, second receiving switch 17, second antenna 18, second transmitting switch 19.

Detailed ways

The following examples are provided to further explain and supplement the present invention and do not constitute any limitation to the present invention.

A low-cost, high-power, fully polarized system according to an embodiment of the present invention is described below with reference to the accompanying drawings.

As shown in FIG1 , a low-cost, high-power, fully polarized system according to an embodiment of the present invention includes a first phase modification module 1, a first transceiver module 2, a second phase modification module 3, a third phase modification module 4, a second transceiver module 5, a fourth phase modification module 6, a power distribution module 7, and a power synthesis module 8;

The power distribution module 7 is connected to the first phase modification module 1 and the third phase modification module 4 respectively, the power synthesis module 8 is connected to the second phase modification module 3 and the fourth phase modification module 6 respectively, the first phase modification module 1 is connected to the receiving end of the first transceiver module 2, the second phase modification module 3 is connected to the output end of the first transceiver module 2, the third phase modification module 4 is connected to the receiving end of the second transceiver module 5, the fourth phase modification module 6 is connected to the output end of the second transceiver module 5, and the first transceiver module 2 is arranged in an orthogonal direction relative to the second transceiver module 5;

A power distribution module 7, used for dividing the electromagnetic wave signal received by the radar into a first input signal and a second input signal according to a preset requirement, and inputting the first input signal into the first phase modification module 1, and inputting the second input signal into the third phase modification module 4;

A first phase modification module 1, used to change the phase of the first input signal during transmission and output a third input signal;

The first transceiver module 2 is used to receive a third input signal, and convert the power of the third input signal into a first preset output power to obtain a first output signal;

A second phase modification module 3, used to change the phase of the first output signal during transmission and output a second output signal;

A third phase modification module 4, used to change the phase of the second input signal during transmission and output a fourth input signal;

The second transceiver module 5 is used to receive a fourth input signal, and convert the power of the fourth input signal into a second preset output power to obtain a third output signal;

A fourth phase modification module 6, used to change the phase of the third output signal during transmission and output a fourth output signal;

The power synthesis module 8 is used to synthesize the second output signal and the fourth output signal according to the third preset output power, and output the target signal.

Among them, the power of the second output signal is the first preset output power, the power of the fourth output signal is the second preset output power, the first preset output power and the second preset output power are different powers, and the function of the power synthesis module 8 is to synthesize two signals of different powers into a target signal of the same power. The third preset output power can be the same as the first preset output power, or the same as the second preset output power, or the third preset output power can be different from the first preset output power and different from the second preset output power.

When in use, the signal of the electromagnetic wave input to the radar is divided into a first input signal and a second input signal in the power distribution module 7 according to preset requirements. The first input signal is input to the first phase modification module 1, the phase of the first input signal in transmission is changed, and a third input signal is output. The third input signal is input to the first transceiver module 2, and the power of the third input signal is converted into a first preset output power to obtain a first output signal. Similarly, the second input signal is input to the third phase modification module 4, the phase of the second input signal in transmission is changed, and a fourth input signal is output. The fourth input signal is input to the second transceiver module 5, and the power of the fourth input signal is converted into a second preset output power to obtain a third output signal. Based on the above, by using the first phase modification module 1 and the third phase modification module 4, the phase of the first input signal and the second input signal in transmission is changed, that is, the phase of the electromagnetic wave signal (that is, the third input signal and the fourth input signal) received by the first transceiver module 2 and the second transceiver module 5 at the receiving end can be changed according to actual conditions, thereby changing the polarization mode of the radar product at the receiving end;

Similarly, for the output ends of the first transceiver module 2 and the second transceiver module 5, the phases of the first output signal and the third output signal during transmission are changed through the second phase modification module 3 and the fourth phase modification module 6, that is, the phases of the electromagnetic wave signals (that is, the second output signal and the fourth output signal) emitted by the first transceiver module 2 and the second transceiver module 5 at the transmitting end can be changed according to actual conditions, thereby changing the polarization mode of the radar product at the transmitting end, solving the problem that the electromagnetic wave signal cannot achieve free conversion of various polarization modes when the total power emitted by the radar remains unchanged.

The preset requirement in the power distribution module 7 indicates that power distribution is performed according to actual conditions, and the signal of the electromagnetic wave received by the radar is diverted.

The first preset output power in the first transceiver module 2 indicates that the power of the third input signal is adjusted according to actual conditions, and the output power meets the requirements of the first output signal.

The second preset output power in the second transceiver module 5 indicates that the power of the fourth input signal is adjusted according to actual conditions to output a third output signal with a power that meets the requirements.

Optionally, the power distribution module 7 is a power distributor. In this embodiment, the model of the power distributor is an SMA power divider.

Optionally, the power combining module 8 is a power combiner. In this embodiment, the model of the power combiner is an SMA combiner.

Optionally, the first phase modification module 1, the second phase modification module 3, the third phase modification module 4 and the fourth phase modification module 6 are all TR component phase shifters. In this embodiment, the model of the TR component phase shifter is HMC3716LP4E.

Optionally, as shown in FIG. 1 , the first transceiver module 2 includes a first receiving switch 14 , a first antenna 15 and a first transmitting switch 16 , the first receiving switch 14 is connected to the first phase modification module 1 , and the first transmitting switch 16 is connected to the second phase modification module 3 .

Optionally, as shown in FIG. 1 , the second transceiver module 5 includes a second receiving switch 17 , a second antenna 18 and a second transmitting switch 19 , the second receiving switch 17 is connected to the third phase modification module 4 , and the second transmitting switch 19 is connected to the fourth phase modification module 6 .

In this embodiment, the first antenna 15 is arranged in an orthogonal direction relative to the second antenna 18, so as to ensure that the radar product can generate at least one polarization mode.

Optionally, as shown in Figure 1, the system also includes a first final stage power amplifier 9 and a second final stage power amplifier 10, the receiving end of the first final stage power amplifier 9 is connected to the first phase modification module 1, the output end of the first final stage power amplifier 9 is connected to the first transceiver module 2, the receiving end of the second final stage power amplifier 10 is connected to the third phase modification module 4, and the output end of the second final stage power amplifier 10 is connected to the second transceiver module 5. In this embodiment, the models of the first final stage power amplifier 9 and the second final stage power amplifier 10 are both TSPA-000025G21.

Optionally, as shown in FIG1 , the system further includes a first low noise gainer 11 and a second low noise gainer 12, the receiving end of the first low noise gainer 11 is connected to the first transceiver module 2, the output end of the first low noise gainer 11 is connected to the second phase modification module 3, the receiving end of the second low noise gainer 12 is connected to the second transceiver module 5, and the output end of the second low noise gainer 12 is connected to the fourth phase modification module 6;

A first low noise gain device 11, used to reduce noise in the first output signal;

A second low noise gain device 12, used for reducing noise in the third output signal;

In this embodiment, the models of the first low noise gain device 11 and the second low noise gain device 12 are both TLA-000050M20.

Optionally, as shown in FIG. 1 , the system further includes a gain amplifier 13 , which is connected to the power synthesis module 8 . The gain amplifier 13 is used to enhance the signal strength of the target signal. In this embodiment, the model of the gain amplifier 13 is ATA-3040.

A specific application of this embodiment:

The first receiving switch 14 and the first transmitting switch 16 are turned on, and the first antenna 15 receives the signal of the electromagnetic wave. Similarly, the second receiving switch 17 and the second transmitting switch 19 are turned on, and the second antenna 18 receives the signal of the electromagnetic wave. The signal of the electromagnetic wave is input into the power divider and divided into the first input signal and the second input signal according to the preset requirements. The first input signal is input into the TR component phase shifter, the phase of the first input signal in transmission is changed, and the third input signal is output. The third input signal is input into the first antenna 15. At this time, the phase of the third input signal is A. Similarly, the second input signal is input into the TR component phase shifter, the phase of the second input signal in transmission is changed, and the fourth input signal is output. The fourth input signal is input into the second antenna 18. At this time, the phase of the fourth input signal is B. Based on the above, the polarization mode can be changed at the receiving end of the first antenna 15 and the second antenna 18 in the following way (the C direction indicates that the radar product realizes linear polarization in any direction, the D direction indicates a direction orthogonal to the C direction, the left-hand polarization indicates a direction that is 90° left-handed and orthogonal to the C direction, and the right-hand polarization indicates a direction that is 90° right-handed and orthogonal to the C direction):

(1) Linear polarization in direction C ensures that phase A and phase B are in the same direction;

(2) Linear polarization in direction D ensures that phase A is opposite to phase B;

(3) Left-hand polarization ensures that phase A leads phase B by 90°;

(4) Right-hand polarization ensures that phase A lags behind phase B by 90°.

Regarding the polarization mode of the transmitting end of the first antenna 15 and the second antenna 18, when the first antenna 15 converts the power of the third input signal into the first preset output power to obtain the first output signal, the first output signal is input into the TR component phase shifter to output the second output signal, at this time, the phase of the second output signal is E, when the first antenna 15 converts the power of the third input signal into the first preset output power to obtain the first output signal, the first output signal is input into the TR component phase shifter to output the second output signal, at this time, the phase of the second output signal is E, the first output signal is input into the TR component phase shifter to output the second output signal, at this time, the phase of the second output signal is E, when the second antenna 18 converts the power of the fourth input signal into the second preset output power to obtain the third output signal, the third output signal is input into the TR component phase shifter to output the fourth output signal, at this time, the phase of the fourth output signal is F. Based on the above, the polarization mode can be changed in the following way at the transmitting end of the first antenna 15 and the second antenna 18:

(1) Linear polarization in the C direction ensures that phase E and phase F are in the same direction;

(2) Linear polarization in direction D. The linear polarization in direction D is orthogonal to the linear polarization in direction C, ensuring that phase E is in the opposite direction to phase F.

(3) Left-hand polarization, ensuring that phase E leads phase F by 90°;

(4) Right-hand polarization ensures that phase E lags behind phase F by 90°.

Those skilled in the art know that the present invention can be implemented as a system, method or computer program product. Therefore, the present disclosure can be specifically implemented in the following forms, namely: it can be complete hardware, it can be complete software (including firmware, resident software, microcode, etc.), or it can be a combination of hardware and software, generally referred to as "circuit", "module" or "system" herein. In addition, in some embodiments, the present invention can also be implemented in the form of a computer program product in one or more computer-readable media, and the computer-readable medium contains computer-readable program code. Computer-readable storage media can be, for example, but not limited to - electrical, magnetic, optical, electromagnetic, infrared, or semiconductor systems, devices or devices, or any combination of the above.

In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may change, modify, replace and vary the above embodiments within the scope of the present invention.

Claims (9)

1. A low-cost, high-power, fully polarized system, characterized in that it comprises a first phase modification module (1), a first transceiver module (2), a second phase modification module (3), a third phase modification module (4), a second transceiver module (5), a fourth phase modification module (6), a power distribution module (7) and a power synthesis module (8); The power distribution module (7) is connected to the first phase modification module (1) and the third phase modification module (4) respectively, the power synthesis module (8) is connected to the second phase modification module (3) and the fourth phase modification module (6) respectively, the first phase modification module (1) is connected to the receiving end of the first transceiver module (2), the second phase modification module (3) is connected to the output end of the first transceiver module (2), the third phase modification module (4) is connected to the receiving end of the second transceiver module (5), the fourth phase modification module (6) is connected to the output end of the second transceiver module (5), and the first transceiver module (2) is arranged in an orthogonal direction relative to the second transceiver module (5); The power distribution module (7) is used to divide the electromagnetic wave signal received by the radar into a first input signal and a second input signal according to preset requirements, and input the first input signal into the first phase modification module (1), and input the second input signal into the third phase modification module (4); The first phase modification module (1) is used to change the phase of the first input signal during transmission and output a third input signal; The first transceiver module (2) is used to receive the third input signal and convert the power of the third input signal into a first preset output power to obtain a first output signal; The second phase modification module (3) is used to change the phase of the first output signal during transmission and output a second output signal; The third phase modification module (4) is used to change the phase of the second input signal during transmission and output a fourth input signal; The second transceiver module (5) is used to receive the fourth input signal, and convert the power of the fourth input signal into a second preset output power to obtain a third output signal; The fourth phase modification module (6) is used to change the phase of the third output signal during transmission and output a fourth output signal; The power synthesis module (8) is used to synthesize the second output signal and the fourth output signal according to a third preset output power, and output a target signal. 2. The system according to claim 1, characterized in that the power distribution module (7) is a power distributor. 3. The system according to claim 1, characterized in that the power synthesis module (8) is a power synthesizer. 4. The system according to claim 1, characterized in that the first phase modification module (1), the second phase modification module (3), the third phase modification module (4) and the fourth phase modification module (6) are all TR component phase shifters. 5. The system according to claim 1 is characterized in that the first transceiver module (2) includes a first receiving switch (14), a first antenna (15) and a first transmitting switch (16), the first receiving switch (14) is connected to the first phase modification module (1), and the first transmitting switch (16) is connected to the second phase modification module (3). 6. The system according to claim 1 is characterized in that the second transceiver module (5) includes a second receiving switch (17), a second antenna (18) and a second transmitting switch (19), the second receiving switch (17) is connected to the third phase modification module (4), and the second transmitting switch (19) is connected to the fourth phase modification module (6). 7. The system according to claim 1, characterized in that the system further comprises a first final stage power amplifier (9) and a second final stage power amplifier (10), the receiving end of the first final stage power amplifier (9) is connected to the first phase modification module (1), the output end of the first final stage power amplifier (9) is connected to the first transceiver module (2), the receiving end of the second final stage power amplifier (10) is connected to the third phase modification module (4), and the output end of the second final stage power amplifier (10) is connected to the second transceiver module (5); The first final-stage power amplifier (9) is used to enhance the output power of the third input signal; The second final stage power amplifier (10) is used to enhance the output power of the fourth input signal. 8. The method according to claim 1, characterized in that the system further comprises a first low noise gain device (11) and a second low noise gain device (12), the receiving end of the first low noise gain device (11) is connected to the first transceiver module (2), the output end of the first low noise gain device (11) is connected to the second phase modification module (3), the receiving end of the second low noise gain device (12) is connected to the second transceiver module (5), and the output end of the second low noise gain device (12) is connected to the fourth phase modification module (6); The first low-noise gain device (11) is used to reduce noise in the first output signal; The second low noise gain device (12) is used to reduce the noise in the third output signal. 9. The method according to claim 1 is characterized in that the system further comprises a gain amplifier (13), the gain amplifier (13) is connected to the power synthesis module (8), and the gain amplifier (13) is used to enhance the signal strength of the target signal.