基于均匀面阵的子阵空间平滑算法仿真与实现  

Simulation and Realization of Subarray Spatial Smoothing Algorithm Based on Uniform Plane Array

作　　者：张国辉[1] 丁学科 何彬[1] 李晓燕[1] ZHANG Guo - hui DING Xue - ke HE Bin LI Xiao - yan(Academy of Armored Forces Engineering, Beijing 100072, China Tongfang Electronic Science and Technology co. , hd, Jiujiang Jiangxi 332007, China)

机构地区：[1]装甲兵工程学院,北京100072 [2]同方电子科技有限公司,江西九江332007

出　　处：《计算机仿真》2017年第10期252-256,共5页Computer Simulation

摘　　要：传统的均匀圆阵在解决相干信源测向时效果较差,均匀线阵虽能解相干,但无法实现360度全方位测向。提出一种基于均匀面阵的子阵空间平滑算法,通过分别对均匀面阵与均匀线阵、均匀面阵经典MUSIC算法与子阵空间平滑算法、均匀面阵两个子阵与四个子阵空间平滑算法的仿真分析与比较表明:基于均匀面阵的子阵空间平滑算法既能实现360度全方位测向,又能实现相干测向,且子阵空间划分越多,空间平滑解相干信号能力越强。最后通过实际测向系统作进一步的验证。The traditional uniform circular array is less effective in solving the coherent source direction finding. Even though the uniform linear array can do decoherence, it can not achieve the 360 degree omnidirectional direction finding. A subarray spatial smoothing algorithm based on uniform surface array is proposed. By analyzing and compa- ring the uniform surface array and the uniform linear array, MUSIC algorithm and the subarray spatial smoothing algo- rithm based on the uniform surface array, spatial smoothing algorithm for two subarrays and four subarrays based on uniform array respectively, it is shown that the subarray spatial smoothing algorithm based on uniform surface array can achieve 360 degree omnidirectional finding and coherent direction finding, and the more subarray spaces are di- vided, the stronger the spatial smoothing coherent ability is. Finally, the algorithm is further validated by the actual direction finding system.

关 键 词：均匀面阵 空间平滑 解相干 测向 子阵分割 

分 类 号：TN957[电子电信—信号与信息处理]