Composite deception jamming intelligent identification method, system and device based on time-frequency characteristics and medium

Through compound deception and interference intelligent identification methods based on time -based features, using YOLOV8 neural network and feature extraction module to process composite interference signals, solve the problem of low -level recognition accuracy and difficulty in composite interference recognition under low noise ratio. High accuracy interference signal recognition.

CN119375838AActive Publication Date: 2025-01-28QINGDAO INNOVATION & DEV CENT OF HARBIN ENG UNIV +1
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Patent Information

Application Number
CN202411453837.1
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-10-17
Publication Date
2025-01-28
Estimated Expiration
2044-10-17

AI Technical Summary

Technical Problem

The existing interference signal recognition technology has low recognition accuracy under low interference noise ratio conditions, and there are few researches on the identification of composite spoof interference superimposed by multiple spoof interferences.

Method used

Adopt a composite compound deception and interference intelligent identification method based on time -frequency features, through interference signal simulation modules, composite deception interference generation modules, feature extraction modules, and YOLOV8 neural network reason detection models, pulse compression, phase cumulative processing and shortness of composite interference signals are performed on composite interference signals Fourier transforms, generate frequency diagrams, and improve the accuracy of recognition.

Benefits of technology

It has significantly improved the accuracy of identification accuracy of compound deception interference under low -to -noise ratio, has good generalization capabilities, is easy to achieve engineering, and provides reliable technology to support the field of radar anti -interference.

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Abstract

The invention discloses a composite deception jamming intelligent identification method, system and device based on time-frequency characteristics and a medium, and belongs to the field of radar anti-jamming. The method comprises the following steps: firstly, performing pulse compression and coherent accumulation processing on a composite deception jamming signal to obtain a Doppler unit where the maximum energy spectrum of the jamming signal is located, then only performing coherent accumulation processing on the jamming signal, and extracting a time domain slice of the Doppler unit where the maximum energy spectrum is located; therefore, an interference signal time-frequency diagram after the interference-to-noise ratio is improved can be obtained; the method has good generalization ability under the condition of dynamic superposition and composition of various deception interferences; the recognition accuracy of the composite deception jamming under the low interference-noise ratio can be greatly improved, and reliable technical support is provided for the radar anti-jamming field; the engineering realization is easy and the speed is fast.
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Citation Information

Patent Citations

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    CN112363121A

  • Radar active composite interference identification method based on YOLOv5

    CN116165626A

  • Clean-slate synchronization signal design and cell search algorithms

    US20170135052A1