Satellite navigation matching spectrum interference suppression method, device and equipment based on single antenna

Abstract

This application relates to a method, apparatus, and device for suppressing matched spectrum interference in satellite navigation based on a single antenna, belonging to the field of satellite navigation signal processing technology. The method sequentially performs interference amplitude estimation, carrier parameter estimation, complex carrier reconstruction, and spreading code symbol estimation on the baseband complex signal received by the single antenna, thereby completely reconstructing the estimated value of the matched spectrum interference signal. This value is then subtracted from the original signal to cancel the interference. This method eliminates the need for an array antenna, significantly reducing system cost, size, and power consumption. It has low computational complexity, can be implemented in real-time on existing hardware platforms, exhibits excellent anti-interference performance, and can be seamlessly integrated into existing receivers, ensuring positioning continuity in strong interference environments.

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