A method for quickly judging spatially diffused electromagnetic signals

CN121656665BActive Publication Date: 2026-06-09ZHONGBEI UNIV

Patent Information

Authority / Receiving Office: CN · China
Patent Type: Patents(China)
Current Assignee / Owner: ZHONGBEI UNIV
Filing Date: 2026-02-09
Publication Date: 2026-06-09

AI Technical Summary

Technical Problem

Traditional electromagnetic signal monitoring methods are inefficient, have poor real-time performance, and weak noise resistance in complex electromagnetic environments. They are difficult to accurately identify and distinguish target signals, and are prone to misjudgment or missed judgment.

Method used

By employing a method of spectrum segmentation, multi-scale spectral entropy analysis, adaptive threshold judgment, and frequency-time domain joint display, the monitoring frequency band is divided into sub-bands. Combined with spectral entropy difference analysis, characteristic signals are quickly identified and distinguished, and then converted into time domain signals for display.

Benefits of technology

It significantly improves the efficiency of electromagnetic signal monitoring, enhances the noise resistance to complex electromagnetic environments, improves the detection sensitivity and accuracy of characteristic signals, and can simultaneously identify multiple electromagnetic signals.

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Abstract

The present application relates to a kind of quick judgment methods of space emission electromagnetic signal, belong to electromagnetic signal monitoring technical field, specifically including comprising the following steps, S1.receiving space emission electromagnetic signal;S2.the total frequency band of monitoring is divided into several identical width sub-band, and based on multi-scale spectrum entropy analysis, the electromagnetic signal spectrum of real-time fast analysis obtained, the frequency band where feature signal is located is positioned;S3, the spectrum of the frequency band where feature signal is located is converted into time domain signal, simultaneously display spectrum diagram and time domain waveform.The present application is through spectrum segmentation, multi-scale spectrum entropy analysis, adaptive threshold judgment and frequency domain-time domain joint display, solve the problem of poor real-time, weak anti-noise ability and single dimension in prior art.

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