基于波达方向矩阵的矢量水听器方位频率联合估计.pdfVIP

20 5 海 军 工 程 大 学 学 报 V o l. 20 N o . 5 2008 10 JO U RN A L OF NA V A L U NI VERSIT Y O F EN GIN EERIN G O ct . 2008 * 1 1 1 2 何希盈 , 程锦房 , 林春生 , 朱读明 ( 1. , 430033; 2. 7 10 , 200940) : 提出了一种新的基于单个矢量水听器的方位频 联合估计方法 波达方向矩阵法利用矢量水 听器的时延数据, 构造了两个相同的子阵, 通过对波达方向矩阵的特征分解, 实现了对目标信号的波达方向估 计, 并同时得到了目标的频 特征计算机仿真实验表明, 该方法具有较好的估计精度 : 矢量水听器; 波达方向估计; 波达方向矩阵; 水声信号处理 : T N 911. 7 : A : 1009- 3486( 2008) 05- 00 37 - 05 A single vector hydrophone joint frequency and direction of arrival based on DOA matrix method 1 1 1 2 H E Xiy ing , CH EN G J inang , L IN Chunsheng , ZH U Duming ( 1. Dept . o Weapo nry Engineering, N av al U niv. o Engineering, Wuhan 430033, China; 2. No. 710 Research Inst. , China Shipbuilding Indu st ry Corporat ion, Shang hai 200940, China) Abstract: A nov el approach o D OA m at rix method w as pro posed t o joint requency and direction o ar rival using a sing le v ect or hydr ophone. By the t em por al invariance, tw o subar ray s w it h t he same ar ray shape w ere co nstr ucted. By means o D OA mat rix , t he jo int r equency and direction o arrival est im ation could be obt ained. T he Mo nt eCarlo simulat io n result s show it s validit y. Key words: vect or hydr ophone; D OA est imat io n; DOA matr ix ; acou st ic sig nal pro cessing ( DOA) , , , , [ 1, 2] [ 3] , T ichavsky ESPRIT [ 4, 5] ESPRIT [ 6] , , , , [ 7] ESP R