CN218727963U - Electronic reflector capable of being remotely controlled - Google Patents
Electronic reflector capable of being remotely controlled Download PDFInfo
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- CN218727963U CN218727963U CN202222665602.1U CN202222665602U CN218727963U CN 218727963 U CN218727963 U CN 218727963U CN 202222665602 U CN202222665602 U CN 202222665602U CN 218727963 U CN218727963 U CN 218727963U
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Abstract
The present application relates to a remotely controllable electronic reflector. The reflector comprises a controllable phase-shifting amplification module and a remote control system; the remote control system comprises a remote control signal transmitter and a remote control command receiver, wherein the remote control signal transmitter interacts with the remote control command receiver through various remote control modes and transmits a remote control command, and the remote control modes comprise radio remote control, infrared remote control, laser remote control and microwave remote control; the remote control command receiver is electrically connected with the controllable phase-shifting amplification module and demodulates the remote control command to obtain a remote control signal; the remote control command receiver remotely controls the controllable phase-shifting amplification module according to the remote control signal; remote control includes controlling reflector switch state, controlling echo signal amplitude and phase modulation. By adopting the method and the device, the RCS change characteristic of the modulation target can be remotely controlled.
Description
Technical Field
The application relates to the technical field of radar interference, in particular to an electronic reflector capable of being remotely controlled.
Background
The reflector mainly has the functions of focusing radar wave signals and enabling the radar wave signals to be reversely reflected along the incident direction, so that the energy of backscattering echo signals can be enhanced, and the effect of regulating and controlling the radar target characteristics is achieved. The commonly used reflectors comprise corner reflectors, luneberg lenses, direction retrospective antenna arrays and the like, but the RCS characteristics of the reflectors only change along with the change of the structures and the sizes of the reflectors, and once the reflectors are processed and shaped, the RCS characteristics of the reflectors are fixed and are easy to distinguish by a radar recognition system. The problem can be solved by the appearance of the modulatable electronic reflector, the RCS change characteristic of a real target can be simulated, and the modulatable electronic reflector can be used as a fake target or a radar decoy to play a role in protecting the real target; still possess the phase modulation function, be difficult to be distinguished by radar identification system.
However, although the current reflectors achieve the modulation function of the amplitude and the phase of the signal of the radar target echo to different degrees, and play a role in protecting a real target, the current reflectors do not have the capability of remotely controlling the working state of the reflectors, and cannot be well applied to working scenes where people cannot contact with the reflectors in a close distance, such as severe environments, complex terrains and the like.
SUMMERY OF THE UTILITY MODEL
In view of the above, there is a need to provide an electronic reflector that can be remotely controlled.
A remotely controllable electronic reflector, said reflector comprising a controllable phase-shifting amplification module and a remote control system;
the remote control system comprises a remote control signal transmitter and a remote control command receiver, wherein the remote control signal transmitter interacts with the remote control command receiver through various remote control modes and transmits a remote control command, and the remote control modes comprise radio remote control, infrared remote control, laser remote control and microwave remote control;
the remote control command receiver receives a remote control command and demodulates the remote control command to obtain a remote control signal;
the remote control command receiver is electrically connected with the controllable phase-shifting amplification module and remotely controls the controllable phase-shifting amplification module according to a remote control signal; remote control includes controlling reflector switch state, controlling echo signal amplitude and phase modulation.
In one embodiment, the reflector further comprises an antenna array; the antenna array comprises a receiving array and a transmitting array.
In one embodiment, corresponding array elements of the receiving array and the transmitting array form a group of transmitting-receiving array element pairs, and all the transmitting-receiving array element pairs meet the phase conjugation relation; the total length of the transmission line between all the transceiver array element pairs is kept consistent.
In one embodiment, the reflector further comprises an isolation design positioned between the receive array and the transmit array of the antenna array for reducing coupling between the antenna arrays.
In one embodiment, the isolation design has an isolation greater than the maximum gain value of the amplifier.
In one embodiment, the controllable phase-shifting amplification module comprises an amplifier and a phase shifter for adjusting the gain and phase shift between each group of transceiver array element pairs.
In one embodiment, the number of controllable phase-shifting amplification modules, the array element number of a receiving array of an antenna array and the array element number of a transmitting array of the antenna array are the same; the antenna array is preferably a Van Atta antenna array.
In one embodiment, the remote control system may generate either an analog signal or a digital signal as the remote control signal.
In one embodiment, the phase shifter and the amplifier of the controllable phase shifting amplification module are both controlled by the same remote control signal generated by the remote control command receiver.
In one embodiment, controlling the amplitude and phase modulation of the echo signals includes controlling the modulation frequency, timing, and duty cycle of the echo signals.
The electronic reflector capable of being remotely controlled is characterized in that a remote control system is additionally arranged, a remote control command receiver in the remote control system is electrically connected with a controllable phase-shifting amplification module, a remote control signal is demodulated after a remote control command sent by a remote control signal transmitter is received, and the remote control signal is used for remotely controlling the controllable phase-shifting amplification module such as reflector switching state, echo signal amplitude, phase modulation and the like; the modulable electronic reflector can be arranged in working scenes such as severe environment and complex terrain which cannot be controlled by people in a short distance, and the change of the working state of the modulable electronic reflector is only required to be controlled remotely; in addition, realize the remote control to reflector operating condition through remote control signal transmitter, make the control process simpler, this application has advantages such as miniaturized, modulatable, application environment is wide and control simply.
Drawings
FIG. 1 is a schematic diagram of a remotely controllable electronic reflector in one embodiment;
fig. 2 is a schematic flow chart illustrating a process for remotely controlling an electronic reflector according to an embodiment.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, the present application is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.
In one embodiment, as shown in fig. 1, there is provided a remotely controllable electronic reflector comprising a controllable phase-shifting amplification module 3 and a remote control system;
the remote control system comprises a remote control signal transmitter 7 and a remote control command receiver 6, wherein the remote control signal transmitter 7 interacts with the remote control command receiver 6 and transmits a remote control command in various remote control modes, and the remote control modes comprise radio remote control, infrared remote control, laser remote control and microwave remote control;
the remote control command receiver 6 receives the remote control command and demodulates the remote control command to obtain a remote control signal;
the remote control command receiver 6 is electrically connected with the controllable phase-shifting amplification module 3 and remotely controls the controllable phase-shifting amplification module 3 according to a remote control signal; remote control includes controlling reflector switch state, controlling echo signal amplitude and phase modulation.
In one embodiment, when the remote control mode is radio remote control, the remote control signal transmitter 7 and the remote control command receiver 6 both include wireless communication modules, the remote control signal transmitter 7 transmits a remote control command to the remote control command receiver 6 through its own wireless communication module, and the remote control command receiver 6 receives the remote control command through its own wireless communication module and demodulates the remote control command to obtain a remote control signal; the remote control signal is a digital signal.
When the remote control mode is infrared remote control, laser remote control or microwave remote control, the remote control signal transmitter 7 and the remote control command receiver 6 respectively comprise a command transmitting unit and a command receiving unit, the remote control signal transmitter 7 transmits a remote control command to the remote control command receiver 6 through the command transmitting unit, and the remote control command receiver 6 receives the remote control command through the command receiving unit and demodulates the remote control command to obtain a remote control signal; the remote control signal is a digital signal.
In one of the embodiments, the reflector further comprises an antenna array 1; the antenna array comprises a receive array 11 and a transmit array 12.
In one embodiment, the corresponding array elements of the receiving array 11 and the transmitting array 12 form a group of transmit-receive array element pairs, and all the transmit-receive array element pairs satisfy a phase conjugation relationship; the total length of the transmission line between all the transceiver array element pairs is kept consistent.
In a specific embodiment, the total length of the transmission lines between each group of array elements is consistent, and phase conjugation relations between all the transmitting and receiving array element pairs are satisfied. The antenna array 1 is connected with the controllable phase-shifting amplification module 3 through a transmission line 21, a transmission line 22, a transmission line 23 and a transmission line 24, the transmission line 21 and the transmission line 22 connect the antenna array elements on the receiving antenna array 11 with the input end of the controllable phase-shifting amplification module 3, the transmission line 23 and the transmission line 24 connect the antenna array elements on the transmitting antenna array 12 with the output end of the controllable phase-shifting amplification module 3, the total length of the transmission lines connecting each group of the receiving antenna array elements and the transmitting antenna array elements (namely the length of the transmission line 21 and the transmission line 22 and the length of the transmission line 23 and the transmission line 24 are the same), and the receiving antenna array 11 and the transmitting antenna array 12 are the same 4 x 4 plane antenna array. In other embodiments, different antenna elements, different numbers of antenna elements, different array arrangement modes, and the like may be adopted according to actual needs, and in general, the larger the gain of the required antenna array is, the larger the number of antenna elements is. The bandwidth and the beam width of the antenna array element determine the bandwidth and the space coverage range of the retro-reflector, and the bandwidth and the beam width of the antenna array element can be selected according to actual needs.
In one embodiment, the reflector further comprises an isolation design 4, the isolation design 4 being located between a receive array 11 and a transmit array 12 of the antenna array 1 for reducing coupling between the antenna arrays.
In one embodiment, the isolation of the isolation design 4 is greater than the maximum gain value of the amplifier.
In a specific embodiment, the isolation degree of the isolation design is larger than the maximum gain value of the amplifier, so that self-excitation of the loop can be avoided.
In one embodiment, the controllable phase-shifting amplification module 3 comprises an amplifier 31 and a phase shifter 32 for adjusting the gain and phase shift between each group of transceiver array element pairs.
In the specific embodiment, the antenna array elements on the receiving antenna array 11 are connected with the input end of the controllable phase-shifting amplification module 3 through the transmission line 21, the antenna array elements on the transmitting antenna array 12 are connected with the output end of the controllable phase-shifting amplification module 3 through the transmission line 23, the total length of the transmission lines between each group of receiving antenna array elements and each group of transmitting antenna array elements (namely the sum of the lengths of the transmission line 21 and the transmission line 23) is kept consistent, phase conjugation is realized, and 16 controllable phase-shifting amplification modules 3 are loaded between each group of array elements; each controllable phase shift amplification module 3 comprises an amplifier 31 and a phase shifter 32 therein, and is used for adjusting the gain and phase shift between each group of transmit-receive array element pairs, thereby realizing the modulation function of the signal amplitude and phase of the radar target echo.
In one embodiment, the number of controllable phase-shifting amplification modules, the array element number of a receiving array of an antenna array and the array element number of a transmitting array of the antenna array are the same; the antenna array is preferably a Van Atta antenna array.
In one embodiment, the remote control system may generate either an analog signal or a digital signal as the remote control signal.
In an embodiment, the remote control command receiver 6 outputs a control signal for controlling the amplifier 31, the phase shifter 32 and the reflector power switch 5 in the controllable phase-shifting amplifying module 3 to switch their states rapidly. The control signal can respectively control the amplifier, the phase shifter, the power switch and the like in the controllable phase-shifting amplification module. Different buttons on the remote control signal transmitter 7 correspondingly realize different remote control functions, including control of the reflector on-off state, control of the amplitude and phase modulation of the echo signal, and the like. The reflector power switch 5 is electrically connected to a remote control command receiver 6.
In one embodiment, the phase shifter 32 and the amplifier 31 of the controllable phase shifting amplification module 3 are both controlled by the same remote control signal generated by the remote control command receiver.
In the specific embodiment, all the amplifiers of the controllable phase-shifting amplification module 3 are controlled by the same control signal generated by the remote control command receiver 6, so as to ensure that the gains of the array elements of the receiving antenna array 11 and the transmitting antenna array 12 are the same; the phase shifters of all the controllable phase shift amplifying modules 3 are controlled by the same control signal generated by the remote control command receiver 6 to ensure that the receiving antenna array 11 and the transmitting antenna array 12 are always in a phase conjugate state, so that the direction of the reflected beam is consistent with the direction of the incident beam of the radar wave. If in a process the phase of the output wave is the complex conjugate of the phase of the input wave, then this process is defined as phase conjugate;
the amplifiers of all controllable phase-shifting amplification modules are controlled by the same control signal generated by the remote control command receiver so as to ensure that each group of array elements between the receiving antenna array and the transmitting antenna array obtain the same gain.
In one embodiment, controlling the amplitude and phase modulation of the echo signals includes controlling the modulation frequency, timing, and duty cycle of the echo signals.
For clarity of illustration, fig. 2 shows the workflow of the remote control function that the reflector of the present application can implement. Different buttons on the remote control signal transmitter 7 control the transmission of different remote control commands, and the remote control command receiver 6 outputs corresponding control signals by receiving the remote control commands transmitted by the remote control signal transmitter 7. The remote control signal transmitter 7 controls the characteristics of the receiving circuit such as the frequency, the time sequence, the duty ratio and the like of the output control echo signal by transmitting different remote control commands; the receiver correspondingly changes the frequency, the time sequence or the duty ratio of the output control signal according to the difference of the received remote control commands, and controls the echo signal so as to complete multiple controls of the reflector on-off state, the echo signal amplitude, the phase modulation and the like.
It should be understood that, although the steps in the flowchart of fig. 2 are shown in order as indicated by the arrows, the steps are not necessarily performed in order as indicated by the arrows. The steps are not performed in the exact order shown and described, and may be performed in other orders, unless explicitly stated otherwise. Moreover, at least a portion of the steps in fig. 2 may include multiple sub-steps or multiple stages that are not necessarily performed at the same time, but may be performed at different times, and the order of performance of the sub-steps or stages is not necessarily sequential, but may be performed in turn or alternately with other steps or at least a portion of the sub-steps or stages of other steps.
All possible combinations of the technical features in the above embodiments may not be described for the sake of brevity, but should be considered as being within the scope of the present disclosure as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present application, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the utility model. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (10)
1. A remotely controllable electronic reflector, said reflector comprising: the controllable phase-shifting amplification module and the remote control system;
the remote control system comprises a remote control signal transmitter and a remote control command receiver, wherein the remote control signal transmitter interacts with the remote control command receiver through a plurality of remote control modes and transmits a remote control command, and the remote control modes comprise radio remote control, infrared remote control, laser remote control and microwave remote control;
the remote control command receiver receives the remote control command and demodulates the remote control command to obtain a remote control signal;
the remote control command receiver is electrically connected with the controllable phase-shifting amplification module and remotely controls the controllable phase-shifting amplification module according to a remote control signal; the remote control comprises controlling the reflector switch state, controlling the echo signal amplitude and phase modulation.
2. The electronic reflector of claim 1, wherein the reflector further comprises an antenna array; the antenna array comprises a receiving array and a transmitting array.
3. The electronic reflector of claim 2, wherein the corresponding array elements of the receiving array and the transmitting array form a set of transceiving array element pairs, and phase conjugate relation is satisfied between all the transceiving array element pairs; the total length of the transmission lines between all the transceiving array element pairs is kept consistent.
4. The electronic reflector of claim 3, further comprising an isolation design positioned between the receive array and the transmit array of the antenna array for reducing coupling between the antenna arrays.
5. The electronic reflector of claim 4, wherein the controllable phase-shifting amplification module comprises amplifiers and phase shifters for adjusting gain and phase shift between each group of transceiver array element pairs.
6. The electronic reflector of claim 5, wherein the isolation design has an isolation greater than a maximum gain value of the amplifier.
7. The electronic reflector of claim 6, wherein the number of controllable phase-shifting amplification modules, the number of array elements of a receive array of the antenna array, and the number of array elements of a transmit array of the antenna array are the same; the antenna array is preferably a Van Atta antenna array.
8. The electronic reflector of claim 3, wherein the remote control system is capable of generating either an analog signal or a digital signal as the remote control signal.
9. The electronic reflector of claim 5, wherein the phase shifter and the amplifier of the controllable phase-shifting amplification module are both controlled by the same remote control signal generated by the remote control command receiver.
10. The electronic reflectron of claim 1, in which the controlling echo signal amplitude and phase modulation comprises controlling a modulation frequency, timing, and duty cycle of an echo signal.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202222665602.1U CN218727963U (en) | 2022-10-08 | 2022-10-08 | Electronic reflector capable of being remotely controlled |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202222665602.1U CN218727963U (en) | 2022-10-08 | 2022-10-08 | Electronic reflector capable of being remotely controlled |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114442059A (en) * | 2021-12-15 | 2022-05-06 | 中国人民解放军国防科技大学 | Retro-reflector with high dynamic reconfigurable RCS |
| CN115436885A (en) * | 2022-10-08 | 2022-12-06 | 天津先进技术研究院 | Electronic reflector capable of being remotely controlled |
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2022
- 2022-10-08 CN CN202222665602.1U patent/CN218727963U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114442059A (en) * | 2021-12-15 | 2022-05-06 | 中国人民解放军国防科技大学 | Retro-reflector with high dynamic reconfigurable RCS |
| CN115436885A (en) * | 2022-10-08 | 2022-12-06 | 天津先进技术研究院 | Electronic reflector capable of being remotely controlled |
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