一种间歇采样转发干扰信号识别方法及参数估计方法

By combining time-domain envelope and frequency-domain spectral feature recognition, the problem of identifying and estimating parameters of intermittent sampling and forwarding interference signals in existing technologies has been solved, achieving accurate identification and parameter estimation of intermittent sampling and forwarding interference and improving the radar's anti-interference capability.

CN120972107BActive Publication Date: 2026-07-17BEIJING INST OF TECH

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
BEIJING INST OF TECH
Filing Date
2025-08-26
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing electronic reconnaissance receiver technology struggles to achieve fine-grained identification and parameter estimation when recognizing and estimating intermittently sampled and forwarded jamming signals, making it particularly impractical in actual combat.

Method used

By combining time-domain envelope feature recognition and frequency-domain spectrum feature recognition, the type of intermittent sampling forwarding interference is identified. Through quadratic threshold and FFT analysis, the characteristics and parameters of the interference signal are extracted, including sampling pulse width, period, number of slices, etc.

Benefits of technology

It achieves accurate identification and parameter estimation of interference from intermittent sampling direct forwarding, repeated forwarding, cyclic forwarding, and superimposed forwarding, improving the real-time performance and accuracy of identification and estimation.

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Abstract

本发明公开了一种间歇采样转发干扰信号识别和参数估计方法,本发明针对四种不同类型的间歇采样转发干扰,先根据其在时域包络的特征初步判别是否是间歇采样转发干扰和具体转发类型,再依据干扰时域包络的过门限标记和干扰频域频谱谱峰的个数对干扰信号参数进行估计;本发明可实时对间歇采样直接转发、重复转发、循环转发和叠加转发干扰进行准确的类型识别;本发明可实时对间歇采样转发干扰进行采样脉冲宽度、采样脉冲周期、切片个数和转发次数进行准确的参数估计。
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