Adaptive pulse interference suppression method and device, computer device and storage medium

Abstract

This application relates to an adaptive impulse interference suppression method, apparatus, computer device, and storage medium. The method includes: obtaining the impulse interference duty cycle from the digital intermediate frequency signal output by the front end of a satellite navigation receiver through sliding window energy detection; extracting the effective bandwidth by performing FFT on the signal during the interference period; establishing carrier-to-noise ratio loss estimation models for two strategies: time-domain zeroing and frequency-domain spectral line removal; calculating the loss value by substituting parameters; and selectively executing interference suppression. This method achieves intelligent adaptation of interference suppression strategies, minimizes carrier-to-noise ratio loss, improves the robustness and availability of the receiver in complex electromagnetic environments, has strong algorithm compatibility, is easy to integrate into engineering, and has the potential for expansion through machine learning optimization.

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