Near-infrared quantum guide target detection system and method capable of resisting information decoy interference
A target detection and near-infrared technology, applied in the field of target detection, can solve problems such as misjudgment, the seeker cannot effectively identify true and false signals, etc., to achieve the effects of high sensitivity, resistance to information deception and interference, and low system power consumption
Pending Publication Date: 2021-06-04
XI'AN INST OF OPTICS & FINE MECHANICS - CHINESE ACAD OF SCI
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Problems solved by technology
[0003] The purpose of the present invention is to solve the problem in the prior art that the laser precision guided weapon is deceiving the false pulse signal emitted by the jammer, so that the seeker cannot effectively identify the true and false signals, resulting in misjudgment, and provides a Near-infrared quantum guided target detection system and method against information decoy interference
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[0034] In order to make the purpose, advantages and features of the present invention clearer, the near-infrared quantum-guided target detection system and method proposed by the present invention to resist information decoy interference will be further described in detail in conjunction with the accompanying drawings and specific embodiments.
[0035] The near-infrared quantum guided target detection system anti-information decoy interference provided by the present invention is as follows: figure 1 As shown, it includes a narrow pulse laser 1, a parametric down-converter 2 arranged on the output optical path of the narrow pulse laser 1, a narrow-band filter 3 and a dichroic mirror 4 sequentially arranged on the output optical path of the parametric down-converter 2, and sequentially arranged on the dichroic The optical delay device 5 and the first single-photon detector 6 on the reflected light path of the mirror 4, the target to be measured 7, the parameter up-converter 8 an...
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Abstract
The invention relates to the field of target detection, in particular to a near-infrared quantum guide target detection system and method capable of resisting information decoy interference, and aims to solve the problems that in the prior art, a seeker of a laser precision guided weapon cannot effectively identify true and false signals and then misjudgment is caused due to a pseudo pulse signal emitted by an information decoy jammer. The system comprises a narrow pulse laser, a parametric down-converter, a narrow-band filter, a dichroic mirror, a light delayer, a first single-photon detector, a to-be-detected target, a parametric up-converter, a second single-photon detector and a quantum correlation processor, wherein the parametric down-converter is arranged on an emergent light path of the narrow pulse laser; the narrow-band filter and the dichroic mirror are sequentially arranged on an emergent light path of the parametric down-converter; the light delayer and the first single-photon detector are sequentially arranged on a reflected light path of the dichroic mirror; the to-be-detected target, the parametric up-converter and the second single-photon detector are sequentially arranged on a transmission light path of the dichroic mirror; and the quantum correlation processor is connected with the first single-photon detector and the second single-photon detector respectively.
Description
technical field [0001] The invention relates to the field of target detection, in particular to a near-infrared quantum-guided target detection system and method capable of resisting information decoy interference. Background technique [0002] Laser precision guided weapons have extremely high guidance accuracy. As the core component of laser precision guided weapons, the laser seeker undertakes the detection and tracking tasks of attack targets. However, with the increasingly complex application environment and the emergence of various jamming methods, especially new types of information decoy jamming, the anti-jamming situation of the existing classic system laser seeker is becoming more and more severe. The information decoy jammer emits a modulated false pulse signal, which can easily cause the seeker to be unable to effectively identify the true and false signals, resulting in misjudgment. Therefore, it is urgent to provide a new device and method to realize the effec...
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CPCF42B15/01
Inventor 李力飞张同意李东坚康岩薛瑞凯
Owner XI'AN INST OF OPTICS & FINE MECHANICS - CHINESE ACAD OF SCI