基于盲信号分离的分布式目标DOA估计方法

基金项目:

国家国防科技重点实验室试点项目

详细信息

DOA Estimation of Distributed Sources in Noise Based on Blind Signal Separation

摘要: 在分布函数未知或数学形式不同的分布式目标同时存在的情况下,研究了一种基于盲信号分离的相干分布式目标一维搜索DOA估计方法。仿真实验结果表明,这种分布式目标DOA估计方法具有分布参数门限现象,DOA估计性能对其他信号源的分布参数不敏感。
- 相干分布式目标 /
- 角信号分布 /
- 波达方向估计 /
- 盲信号分离
Abstract: By using blind signal separation rather than resort to multidimensional search, an algorithm for DOA estimation of coherently distributed signals is given, which is applicable for circumstance where coherently distributed sources with different angular signal density coexist and is not limited to uniform linear array. Numerical results show that performance threshold of distributed parameter is present and performance of DOA estimation is insensitive to distributed parameters of other sources.
- coherently distributed source /
- angular signal density /
- direction of arrival estimation /
- blind signal separation