Improved Main Lobe Cancellation Method for Suppression Directional Noise in HFSWR Systems
Dezhu Xiao,
Xin Zhang,
Qiang Yang
et al.
Abstract:High frequency surface wave radar (HFSWR) has been successfully developed for early warning, especially for vessel target detection. However, the system’s performance is consistently constrained by external environmental noise, particularly directional noise, which presents a new problem for HFSWR. Anisotropic directional noise has complex behavior, and its noise level is generally increased by 10 to 15 dB compared to traditional noise floor level. Suppressing varying directional noise and exploring obscured t… Show more
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