计算机工程2012，Vol.38Issue(2)：284-287,4.DOI:10.3969/j.issn.1000-3428.2012.02.096
α稳定分布噪声下的空间时频DOA估计
Spatial Time-frequency DOA Estimation Under a Stable Distribution Noise
摘要
Abstract
The performance of Direction of Arrival(DOA) estimation based on conventional Spatial Time-frequency Multiple Signal Classifi-cation(STF-MUSCI) degenerates in a stable distribution environment. A new Time-frequency Fractional Lower Order Moment MUSIC(TF-FLOM-MUSIC) method is proposed, second covariance matrix is substituted by Fractional Lower Order Matrix(FLOM) and Fractional Lower Order Moment Spatial Time-frequency Distribution Matrix(FLOM-STFDM) is defined, FLOM-STFDM is decomposed in the method. DOA estimation Mean Squared Error(MSE) and Generalized Signal Noise Ratio(GSNR) are analyzed and algorithm steps are summarized. Simulation results show that TF-FLOM- MUSIC algorithm can reduce effectively DOA estimation MSE and improve estimation resolution.关键词
空间时频分布矩阵/多重信号分类算法/α稳定分布/分数低阶统计量/波达方向估计Key words
Spatial Time-frequency Distribution Matrix(STFDM)/ Multiple Signal Classification(MUSIC) algorithm/ a stable distribution/Fractional Low Order Statistic(FLOS)/ Direction of Arrival(DOA) estimation分类
信息技术与安全科学引用本文复制引用
汪海滨,查代奉,龙俊波..α稳定分布噪声下的空间时频DOA估计[J].计算机工程,2012,38(2):284-287,4.基金项目
国家自然科学基金资助项目(60772037) （60772037）
江西省自然科学基金资助项目(2009GES0068) （2009GES0068）
扛西省教育厅科技基金资助项目(GJJ10266) （GJJ10266）
江西省卫生厅科技计划基金资助项目(20092076) （20092076）
