Title :
Transient interference excision and spectrum reconstruction for OTHR
Author :
Quan, Y.H. ; Xing, M.D. ; Zhang, Leiqi ; Bao, Zhen
Author_Institution :
Nat. Lab. of Radar Signal Process., Xidian Univ., Xi´an, China
Abstract :
High-frequency sky wave over-the-horizon radar (OTHR) suffers performance degradation from transient interference. The segmental subspace projection approach is applied to suppress the clutter and locate the transient interference. After interference excision by adaptive thresholding, the integrated Doppler spectrum is reconstructed based on compressed sensing. Experimental results have demonstrated the effectiveness of the proposed method.
Keywords :
radar clutter; radar signal processing; signal denoising; adaptive thresholding; clutter suppression; compressed sensing; high-frequency sky wave over-the-horizon radar; integrated Doppler spectrum; segmental subspace projection approach; spectrum reconstruction; transient interference excision;
Journal_Title :
Electronics Letters
DOI :
10.1049/el.2011.2799
