现代电子技术2017，Vol.40Issue(5)：1-4,4.DOI:10.16652/j.issn.1004-373x.2017.05.001
冲激噪声下相干信源的求根MUSIC算法
Root-MUSIC algorithm for coherent signal source under impulse noise background
摘要
Abstract
Under the background of impulse noise,the MUSIC algorithm will loss the tenacity for the DOA(direction of ar-rival)estimation of the signal source,can't perform the decorrelation,and has heavy computation,therefore the forward-back-ward smoothing algorithm and modified MUSIC algorithm are improved to propose a new algorithm for DOA estimation of the sig-nal source. The linear array model and co-variation are analyzed briefly. The output matrix of the array is extended from the 2-or-der origin moment to low-order moment. The spatial spectrum based on co-variation matrix is obtained by analyzing the co-varia-tion matrix,and then the spectral peak searching is transformed into the polynomial rooting to estimate the DOA of the coherent signal source. The simulation results show that the algorithm can correctly estimate the DOA of the coherent signal source under the background of impulse noise or Gaussian noise. The analysis result of the algorithm performance shows that the algorithm has good robustness.关键词
冲激噪声/MUSIC算法/相干信源/波达方向/共变矩阵/求根Key words
impulse noise/MUSIC algorithm/coherent signal source/DOA/co-variation matrix/rooting分类
信息技术与安全科学引用本文复制引用
陈栋,杨保海,丁文斌..冲激噪声下相干信源的求根MUSIC算法[J].现代电子技术,2017,40(5):1-4,4.基金项目
国家自然科学基金资助项目(61261046) （61261046）
江西省教育厅科学技术研究项目(GJJ14739) （GJJ14739）
江西省教育厅科技项目(GJJ14721) （GJJ14721）
九江学院科研项目(2013KJ02) （2013KJ02）
