基于相干信号源的修正ISM算法

Research on the modify ISM method using the coherent signal source

介绍一种基于相干信号源的修正ISM算法(MISM)。该算法采用CBF常规波束形成算法及MVDR波束形成算法、MUSIC算法进行处理并给出公式。结合3种算法各自的优势,通过对接收数据阵进行去相关处理,突破了ISM算法只能对相干信号源进行方位估计的局限性。通过计算机仿真进行3种算法的对比分析,验证该算法的有效性。

This paper introduces a modify incoherent signal subspace method （ MISM ） based on the coherent signal source. The algorithm uses conventional beam forming （ CBF ）、MVDR filter、MUSIC to process and provides the formula, combined with the respective advantages of the three algorithms, it overcomes the limitations of ism which can only handle location estimation of coherent signal source from decoherence in receiving data. And comparative analysis of the three methods through computer simulation , it can be approved its effectiveness.