Open AccessAnti‐jamming method for STAP based on a bi‐phase random‐coded signal
Author(s) -
Ye Weijie,
Yang Xiaopeng,
Sun Yuze,
Li Shuai
Publication year - 2019
Publication title -
the journal of engineering
Language(s) - English
Resource type - Journals
ISSN - 2051-3305
DOI - 10.1049/joe.2019.0271
Subject(s) - jamming , computer science , space time adaptive processing , robustness (evolution) , clutter , beamforming , algorithm , chirp , waveform , interference (communication) , electronic engineering , signal (programming language) , radar , telecommunications , engineering , pulse doppler radar , physics , programming language , laser , biochemistry , chemistry , channel (broadcasting) , radar imaging , gene , optics , thermodynamics
The scattered‐wave sweeping frequency jamming occupies many space‐time adaptive processing (STAP) degrees of freedom, which results in a serious decline in STAP performance. To solve this problem, an anti‐jamming method of STAP based on a bi‐phase random‐coded signal is proposed. This method utilises the phase‐coded signal's ability of waveform agile and anti‐jamming. Also, the phase coding is designed as a random sequence, which distinguishes and suppresses the interference by white noise characteristic. Simulation results show that, compared with the STAP method based on a chirp signal, the proposed method improves beamforming robustness and clutter suppression capability under an interfering background.