Method for Suppressing Non-Stationary Interference in the Main-Lobe Based on a Multi-Polarized Array
Year: 2025
Type: article
Abstract: To suppress non-stationary main-lobe interference, we utilized the waveform information of the transmitted signal and proposed an interference suppression method based on a multi-polarized array without the need for calculating the target parameters. This method calculates the steering vector of the target through matched filtering. Additionally, for non-stationary interference whose statistical characteristics change over time, we extract high-energy frequency points from the time-frequency joint domain to obtain the time-frequency covariance matrix for subsequent beamforming. Simulation experiments demonstrate that this method leverages the signal polarization information sensed by the multi-polarized array, effectively suppressing non-stationary main-lobe interference in the polarization domain. This method does not require estimation of the target's polarization parameters and is more suitable for real-world detection scenarios where the waveform is known.
Source: Sensors
DOI: 10.3390/s25216587
Authors: Jie Wang, Shujuan Ding, Na Wei, Jinzhi Bi, Rongqiu Zheng
Language: English
Subfield: Signal Processing
Field: Computer Science
Domain: Physical Sciences
Open Access status: gold
Estimated APC paid: $3,137
OpenAlex ID: W4415650269