A multi-band adaptive frequency hopping reconnaissance signal processing system for wireless communication network monitoring

Abstract

This invention relates to the field of radio communication and signal processing technology, specifically to a multi-band adaptive frequency hopping reconnaissance signal processing system for monitoring wireless communication networks. The system includes: acquiring broadband digital data to generate a time-frequency matrix and constructing steady-state time-frequency reference data accordingly; generating simulation excitation parameters based on preset parameters; calculating the theoretical residual between the excitation parameters and the reference data, and the actual residual between the real-time data and the reference data; calculating the time-frequency structural similarity between the theoretical and actual residuals; triggering the generation of narrowband data using channelization resources when the matching degree reaches a preset threshold, otherwise not triggering; performing parameter estimation and modulation identification on the narrowband data, and dynamically updating the reference data or simulation excitation parameters based on the decision and identification results. This invention significantly reduces the probability of false triggering by misjudging environmental noise as a frequency hopping target.

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