摘要
基于随机理论和多级维纳滤波(MSWF)思想,提出了一种均匀圆阵列单通道快速高精度测向定位算法。该算法只用一个接收通道,与多接收通道相比,在系统成本和复杂性方面具有显著的优势,并且避免了通道间幅相不一致导致算法性能下降的问题。该算法无需对阵列接收矩阵进行特征分解,减轻了星上处理器的运算负担,星上高精度测向定位的实时性得到保证。仿真实验验证了该算法的可行性和有效性。
A novel fast high-resolution passive localization algorithm with single-channel using switch-antenna uniform circular array based on the stochastic theory and multi-stage wiener filter（MSWF） is proposed. Compared with the multiple channels system,the single-channel system has lower hardware complexity and cost,and avoids the performance degradation problem as a result of the amplitude and phase inconsistent between the channel and the channel. The proposed method does not need the eigen-decomposition of large scale array covariance matrix,and reduces the computation burden of the on-board processor. The real-time performance of star ligh-resolution direction-finding is obtained. Numerical results are presented to illustrate the effectiveness and validity of the proposed methodology.
作者
陈显舟
陈周
杨旭
白琳
方海
CHEN Xianzhou CHEN Zhou YANG Xu BAI Lin FANG Hail(Xi＇an Branch, China Academy of Space Technology, Xi＇an 710100, China China Petroleum Pipeline Engineering Corporation, Langfang 065000, China)
出处
《现代雷达》
CSCD
北大核心
2017年第8期49-53,共5页
Modern Radar
关键词
阵列单通道
测向
无源定位
运算复杂度
single-channel
direction finding
passive localization
computational complexity
