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.

TN958