Unmanned aerial vehicle and armed individual soldier classification identification algorithm based on number of spectrum peaks

A technology of classification and recognition, UAV, applied in signal pattern recognition, character and pattern recognition, calculation and other directions, can solve problems such as small RCS, slow ground target speed, and difficulty in ground target recognition.

Pending Publication Date: 2022-02-18
CNGC INST NO 206 OF CHINA ARMS IND GRP
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AI Technical Summary

Problems solved by technology

[0004] At present, the recognition of ground targets is limited to micro-Doppler features in the frequency domain, and ground targets have the characteristics of slow speed and small RCS, which makes this method subject to the influence and limitation of ground clutter. Micro-Doppler exhibits diversity, which makes identification of ground targets extremely difficult

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  • Unmanned aerial vehicle and armed individual soldier classification identification algorithm based on number of spectrum peaks
  • Unmanned aerial vehicle and armed individual soldier classification identification algorithm based on number of spectrum peaks
  • Unmanned aerial vehicle and armed individual soldier classification identification algorithm based on number of spectrum peaks

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Embodiment Construction

[0046] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention. In addition, the technical features involved in the various embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.

[0047] The micro-Doppler information of the armed individual is mainly concentrated on both sides of the principal component, which comes from the swing of the limbs of the armed individual, so its micro-Doppler spectrum is more chaotic and has fewer peaks; compared with the armed individual, the UAV The micro-Doppler spectrum is more regular, the micro-Doppler is mainly derived from the rotation of the roto...

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Abstract

The invention relates to an unmanned aerial vehicle and armed individual soldier classification identification algorithm based on the number of spectrum peaks. The algorithm is used for rapidly and accurately identifying an unmanned aerial vehicle and an armed individual soldier by a battlefield environment reconnaissance radar. Clutter suppression is carried out through a CLEAN algorithm, traversal is carried out in a frequency domain after noise is removed to obtain peak packets, the number is counted, the number of the peak packets is used as a feature, classification identification is carried out through an SVM classifier, identification is carried out by fully utilizing the difference of rotation of a rotor wing of an unmanned aerial vehicle and swing of four limbs of an armed individual soldier in the frequency domain, and the problem that a target RCS is too small and cannot be distinguished is solved.

Description

technical field [0001] The invention proposes a new classification and recognition algorithm for UAVs and armed soldiers based on the number of radar echo spectrum peaks, and the algorithm is used for effective identification of UAVs and armed soldiers in a battlefield environment. Background technique [0002] In the modern combat environment, UAVs, as a member of modern air military forces, have the characteristics of no casualties, few use restrictions, good concealment, and high cost-effectiveness, and their status and role in modern warfare are increasingly prominent. In particular, military drones have the characteristics of compact structure, strong concealment, convenient use, low cost, and flexible performance. They are mainly used for battlefield reconnaissance, electronic jamming, carrying cluster bombs, guided missiles and other weapons to perform offensive tasks, and It is used as an air communication relay platform, a nuclear test sampling machine, a nuclear ex...

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Application Information

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IPC IPC(8): G06K9/00G06K9/62
CPCG06F2218/06G06F2218/10G06F2218/12G06F18/2411G06F18/214
Inventor 陈尹翔王辉辉徐伟袁子乔宋思盛
Owner CNGC INST NO 206 OF CHINA ARMS IND GRP
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