CN217425669U - Simple active echo reflector - Google Patents
Simple active echo reflector Download PDFInfo
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- CN217425669U CN217425669U CN202221323147.0U CN202221323147U CN217425669U CN 217425669 U CN217425669 U CN 217425669U CN 202221323147 U CN202221323147 U CN 202221323147U CN 217425669 U CN217425669 U CN 217425669U
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Abstract
The utility model relates to a simple active echo reflector, which comprises a radio frequency receiving channel, a radio frequency transmitting channel, a control module and a radio frequency time delay module; the input end of the radio frequency receiving channel is connected with the high-frequency band antenna and the low-frequency band antenna, and the output end of the radio frequency receiving channel is respectively connected with the input ends of the control module and the radio frequency delay module; the output end of the radio frequency delay module is connected with the input end of the radio frequency transmitting channel, and the output end of the radio frequency transmitting channel is connected with the high-frequency band antenna and the low-frequency band antenna. The utility model discloses an use multistage radio frequency delay timer chip to establish ties and constitute radio frequency delay timer group, can effectively increase the delay distance, satisfied the technical demand of current target simulation, very big saving development cost, realized the big equipment and the use of active echo simulation, have great economic value.
Description
Technical Field
The utility model relates to a radar technology field, a simple and easy active echo reflector.
Background
The radio frequency echo simulator is an electronic device or equipment for performing radio frequency-level simulation on a target echo signal receiving and processing process when a pulse electromagnetic signal is transmitted in actual radar equipment, and is mainly used for replacing a real target in applications such as testing, training, scientific research and the like. Taking the field of radar detection as an example, the application of the radio frequency echo radar simulator can not be avoided in equipment performance test, effect evaluation, teaching training exercises, technical and tactical optimization research and the like.
The radio frequency echo simulator generally serves as a detected target, the requirements such as vivid fake target simulation, point target echo simulation and surface target echo simulation are met, generally, the basic function of a radar device system is tested, a point target simulation source capable of delaying is needed, if a corner reflector is used as the target simulation source, the acting distance of the corner reflector is fixed, the test is not facilitated, if an active echo simulator is used, the device is required to be capable of receiving signals, storing the signals and emitting the delayed signals after delay debugging, and therefore the target echo is simulated.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome prior art's shortcoming, provide a simple and easy active echo reflector, solved the defect that current radio frequency echo simulator exists.
The purpose of the utility model is realized through the following technical scheme: a simple active echo reflector comprises a radio frequency receiving channel, a radio frequency transmitting channel, a control module and a radio frequency delay module; the input end of the radio frequency receiving channel is connected with the high-frequency band antenna and the low-frequency band antenna, and the output end of the radio frequency receiving channel is respectively connected with the input ends of the control module and the radio frequency delay module; the output end of the radio frequency delay module is connected with the input end of the radio frequency transmitting channel, and the output end of the radio frequency transmitting channel is connected with the high-frequency band antenna and the low-frequency band antenna.
The control module comprises a high-frequency detector, a low-frequency detector and a controller; the output end of the radio frequency receiving channel is connected with the input ends of the high-frequency detector and the low-frequency detector respectively, and the output ends of the high-frequency detector and the low-frequency detector are connected with the controller.
The radio frequency delay module comprises a plurality of radio frequency delayers and a numerical control attenuator; the radio frequency delay units are sequentially connected, the output end of the radio frequency receiving channel is connected with the input end of the first radio frequency delay unit, the output end of the last radio frequency delay unit is connected with the input end of the numerical control attenuator, and the output end of the numerical control attenuator is connected with the input end of the radio frequency reflecting channel.
The radio frequency receiving channel comprises a high-frequency-band amplifier, a low-frequency-band amplifier, a first power divider, a second power divider and a combiner; the input end of the high-frequency amplifier is connected with the high-frequency-band antenna, the output end of the high-frequency amplifier is connected with the input end of the first power divider, and the output end of the first power divider is connected with the input ends of the combiner and the high-frequency-band detector; the input end of the low-frequency amplifier is connected with the low-frequency-band antenna, the output end of the low-frequency amplifier is connected with the input end of the second power divider, and the input end of the second power divider is connected with the input ends of the combiner and the low-frequency-band detector; the output end of the combiner is connected with the input end of a first radio frequency delayer in the plurality of radio frequency delayers in sequence.
The radio frequency transmitting channel comprises a first amplifier, a first switch, a second amplifier, a second switch and a third power divider; the output end of the numerical control attenuator is connected with the input end of the third power divider, the output end of the third power divider is connected with the input ends of the first switch and the second switch, the output end of the first switch is connected with the input end of the first amplifier, and the output end of the first amplifier is connected with the high-frequency-band antenna; the output end of the second switch is connected with a second amplifier, and the output end of the second amplifier is connected with the low-frequency band antenna.
The utility model has the advantages of it is following: a simple active echo reflector considers the economy and the dynamic property of test requirements, and realizes effective construction of a radar test environment under the condition of low cost. The method meets the technical requirements of the current target simulation, greatly saves the development cost, realizes the large-batch equipment and use of the active echo simulation, and has great economic value.
Drawings
Fig. 1 is a schematic diagram of the principle structure of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all the embodiments. The components of the embodiments of the present application, generally described and illustrated in the figures herein, can be arranged and designed in a wide variety of different configurations. Thus, the detailed description of the embodiments of the present application provided below in connection with the appended drawings is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present application without making any creative effort, shall fall within the protection scope of the present application. The present invention will be further described with reference to the accompanying drawings.
As shown in fig. 1, the present invention relates to a simple active echo reflector, which comprises a radio frequency receiving channel, a radio frequency transmitting channel, a control module and a radio frequency delay module; the input end of the radio frequency receiving channel is connected with the high-frequency band antenna and the low-frequency band antenna, and the output end of the radio frequency receiving channel is respectively connected with the input ends of the control module and the radio frequency delay module; the output end of the radio frequency delay module is connected with the input end of the radio frequency transmitting channel, and the output end of the radio frequency transmitting channel is connected with the high-frequency band antenna and the low-frequency band antenna.
The control module comprises a high-frequency detector, a low-frequency detector and a controller; the output end of the radio frequency receiving channel is connected with the input ends of the high-frequency detector and the low-frequency detector respectively, and the output ends of the high-frequency detector and the low-frequency detector are connected with the controller.
The radio frequency delay module comprises a plurality of radio frequency delayers and a numerical control attenuator; the radio frequency delay units are sequentially connected, the output end of the radio frequency receiving channel is connected with the input end of the first radio frequency delay unit, the output end of the last radio frequency delay unit is connected with the input end of the numerical control attenuator, and the output end of the numerical control attenuator is connected with the input end of the radio frequency reflecting channel.
The radio frequency receiving channel comprises a high-frequency-band amplifier, a low-frequency-band amplifier, a first power divider, a second power divider and a combiner; the input end of the high-frequency amplifier is connected with the high-frequency-band antenna, the output end of the high-frequency amplifier is connected with the input end of the first power divider, and the output end of the first power divider is connected with the input ends of the combiner and the high-frequency-band detector; the input end of the low-frequency amplifier is connected with the low-frequency-band antenna, the output end of the low-frequency amplifier is connected with the input end of the second power divider, and the input end of the second power divider is connected with the input ends of the combiner and the low-frequency-band detector; the output end of the combiner is connected with the input end of a first radio frequency delayer in the plurality of radio frequency delayers in sequence.
The radio frequency transmitting channel comprises a first amplifier, a first switch, a second amplifier, a second switch and a third power divider; the output end of the numerical control attenuator is connected with the input end of the third power divider, the output end of the third power divider is connected with the input ends of the first switch and the second switch, the output end of the first switch is connected with the input end of the first amplifier, and the output end of the first amplifier is connected with the high-frequency-band antenna; the output end of the second switch is connected with a second amplifier, and the output end of the second amplifier is connected with the low-frequency band antenna.
The utility model discloses an use multistage radio frequency delayer chip to establish ties and constitute radio frequency delayer group, can effectively increase the delay distance, solved the problem of radio frequency delayer.
The working process of the utility model is as follows: the method comprises the steps that incoming wave signals from an antenna are received, after the incoming wave signals are filtered and amplified through a radio frequency receiving channel, one path of signals enter a radio frequency delayer, the other path of signals enter a detector, the detector detects whether signals exist at present or not, the result is input into a controller, when the detected signals exist, the controller controls the radio frequency delayer to delay the signals for a specified time, then the radio frequency emission RGC gain is adjusted according to the required echo size, and the signals are emitted again.
With the increase of radar equipment and the complexity of test environments, the number of target simulations required is increasing, which has no dynamic characteristics if a corner reflector is used and is costly if a radar echo simulator is used. The utility model discloses compromise the dynamic nature of economic nature and test demand, realized effectively buildding of radar testing environment under the low-cost condition. The method meets the technical requirements of the current target simulation, greatly saves the development cost, realizes the large-batch equipment and use of the active echo simulation, and has great economic value.
The foregoing is illustrative of the preferred embodiments of the present invention, and it is to be understood that the invention is not limited to the precise forms disclosed herein and that the invention is not to be considered as limited to the disclosed embodiments, but is capable of use in various other combinations, modifications, and environments and is capable of changes within the scope of the inventive concept as expressed herein, commensurate with the above teachings, or the skill or knowledge of the relevant art. But that modifications and variations may be effected by those skilled in the art without departing from the spirit and scope of the invention, which is to be limited only by the claims appended hereto.
Claims (5)
1. A simple active echo reflector, characterized by: the device comprises a radio frequency receiving channel, a radio frequency transmitting channel, a control module and a radio frequency delay module; the input end of the radio frequency receiving channel is connected with the high-frequency band antenna and the low-frequency band antenna, and the output end of the radio frequency receiving channel is respectively connected with the input ends of the control module and the radio frequency delay module; the output end of the radio frequency delay module is connected with the input end of the radio frequency transmitting channel, and the output end of the radio frequency transmitting channel is connected with the high-frequency band antenna and the low-frequency band antenna.
2. A simple active echo reflector according to claim 1, characterized in that: the control module comprises a high-frequency detector, a low-frequency detector and a controller; the output end of the radio frequency receiving channel is connected with the input ends of the high-frequency detector and the low-frequency detector respectively, and the output ends of the high-frequency detector and the low-frequency detector are connected with the controller.
3. A simple active echo reflector according to claim 2, characterized in that: the radio frequency delay module comprises a plurality of radio frequency delayers and a numerical control attenuator; the radio frequency delay units are sequentially connected, the output end of the radio frequency receiving channel is connected with the input end of the first radio frequency delay unit, the output end of the last radio frequency delay unit is connected with the input end of the numerical control attenuator, and the output end of the numerical control attenuator is connected with the input end of the radio frequency transmitting channel.
4. A simple active echo reflector according to claim 3, characterized in that: the radio frequency receiving channel comprises a high-frequency-band amplifier, a low-frequency-band amplifier, a first power divider, a second power divider and a combiner; the input end of the high-frequency amplifier is connected with the high-frequency-band antenna, the output end of the high-frequency amplifier is connected with the input end of the first power divider, and the output end of the first power divider is connected with the input ends of the combiner and the high-frequency-band detector; the input end of the low-frequency amplifier is connected with the low-frequency-band antenna, the output end of the low-frequency amplifier is connected with the input end of the second power divider, and the input end of the second power divider is connected with the input ends of the combiner and the low-frequency-band detector; the output end of the combiner is connected with the input end of a first radio frequency delayer in the plurality of radio frequency delayers in sequence.
5. A simple active echo reflector according to claim 3, characterized in that: the radio frequency transmitting channel comprises a first amplifier, a first switch, a second amplifier, a second switch and a third power divider; the output end of the numerical control attenuator is connected with the input end of the third power divider, the output end of the third power divider is connected with the input ends of the first switch and the second switch, the output end of the first switch is connected with the input end of the first amplifier, and the output end of the first amplifier is connected with the high-frequency-band antenna; the output end of the second switch is connected with a second amplifier, and the output end of the second amplifier is connected with the low-frequency band antenna.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221323147.0U CN217425669U (en) | 2022-05-30 | 2022-05-30 | Simple active echo reflector |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202221323147.0U CN217425669U (en) | 2022-05-30 | 2022-05-30 | Simple active echo reflector |
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| CN217425669U true CN217425669U (en) | 2022-09-13 |
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| CN202221323147.0U Active CN217425669U (en) | 2022-05-30 | 2022-05-30 | Simple active echo reflector |
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