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Target recognition method and device by utilizing microwave signals and optical signals

An optical signal and target recognition technology, which is applied in the direction of measuring devices, using re-radiation, re-radiation of electromagnetic waves, etc., can solve problems such as difficult judgment by the responding party, channel blockage, small laser divergence angle, etc., and it is easy and difficult to achieve recognition rules Good effect of decoding and confidentiality

Inactive Publication Date: 2018-03-09
SICHUAN JIUZHOU ELECTRIC GROUP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the above-mentioned technical problems, the present invention provides a microwave and optical joint identification method and device, which avoids interception and channel blockage problems caused by microwave inquiries and responses, and solves the problem at the same time. It is difficult for the answering party to judge the exact location information of the inquiring party when the laser divergence angle is small

Method used

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  • Target recognition method and device by utilizing microwave signals and optical signals
  • Target recognition method and device by utilizing microwave signals and optical signals
  • Target recognition method and device by utilizing microwave signals and optical signals

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Embodiment 1

[0043] Such as figure 1 As shown, the embodiment of the present invention provides a target recognition method using microwave signals and optical signals. In practical applications, when the inquiring party finds the target to be queried, for example, through the naked eye or a sighting device, the process of the target recognition method is started. as follows:

[0044] Step S1: The inquiring direction transmits a laser interrogation signal carrying identification information and a delay instruction to the responding party, and starts timing;

[0045] In the above step S1, the identification information includes the attribute of friend and foe, and the delay instruction includes a specified delay duration and a preset time threshold. In the first step S1 of the embodiment of the present invention, the inquiring party uses a laser to directly transmit a laser interrogation signal carrying identification information and a delay instruction to the responding party, which has g...

Embodiment 2

[0055] according to Figure 2 to Figure 4 As shown, the target recognition method using microwave signals and optical signals described in the first embodiment needs to rely on a device 1 for target recognition using microwave signals and optical signals that can be installed on the interrogator and a device that can be installed on the The responding party's device 2 for target recognition using microwave signals and optical signals cooperates with each other to complete.

[0056] figure 2 Shown is a device 1 for object recognition using microwave signals and optical signals provided by the second embodiment of the present invention that can be used for the interrogator and a device 1 that can be used for target recognition using microwave signals and optical signals for the responding party. A schematic diagram of device 2 interacting to complete target recognition.

[0057] specifically, image 3 It shows a device 1 provided in Embodiment 2 of the present invention that...

Embodiment 3

[0072] according to Figure 5 The device 3 for target recognition using microwave signals and optical signals composed of two identical modules shown can be applied to the inquiring party and the party to be identified respectively, both of which have exactly the same function and have more Strong flexibility.

[0073] Figure 5 Shown is a system diagram of identifying friend or foe with two devices 3 using microwave signals and optical signals for target recognition with the same module composition, wherein any device for target recognition using microwave signals and optical signals includes:

[0074] Laser emitting unit 31, which is used to execute the operation of emitting a laser interrogation signal, the laser interrogation signal carries identification information and a delay instruction; the above identification information includes the attributes of the enemy and the enemy, and the delay instruction includes the specified delay time length and preset The time thresh...

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Abstract

The invention discloses a target recognition method and a device by utilizing microwave signals and optical signals. The method comprises the following steps of S1, sending a laser inquiry signal carrying the identification information and a time delay instruction from an inquiry party to a response party, and starting the timing operation; S2, decoding the received laser inquiry signal by the response party, generating a microwave response signal according to the identification information obtained by decoding, and transmitting the microwave response signal according to the time delay instruction; S3, stopping the timing operation by the inquiry party after receiving the microwave response signal; S4, judging whether the time interval between the starting moment and the stopping moment ofthe timing operation conducted by the inquiry party is within a preset time threshold value or not; if yes, judging that the response party is a target on our part; otherwise, judging that the response party is a target on the enemy part. The device comprises equipment which can be applied to the inquiry party and the response party. According to the invention, the defects of low angle resolutionand beacon function caused by microwave inquiry can be overcome. Meanwhile, the problem that the transmission direction of a response signal generated through the laser response process is difficultto be determined is solved.

Description

technical field [0001] The invention relates to the field of target attribute recognition, in particular to a target recognition method and device using microwave signals and optical signals. Background technique [0002] At present, the most widely used target attribute recognition systems are microwave systems. The microwave identification system can receive and transmit microwave signals in all directions, but it has the disadvantages of poor anti-interference ability, beacon effect, easy to be deceived, transponder occupation, and low angular resolution. Laser technology opens up new areas for the development of identification systems. Laser Identification of Friend or Foe (LIFF for short), its technical advantages are: short laser wavelength, narrow beam, can obtain higher resolution, improve the positioning accuracy of system identification and the ability to resist ground clutter; laser has High anti-electromagnetic interference ability, especially suitable for the ...

Claims

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Application Information

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IPC IPC(8): G01S17/74G01S13/78
CPCG01S13/78G01S17/74
Inventor 叶鹏任瑞冯波
Owner SICHUAN JIUZHOU ELECTRIC GROUP
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