相位干涉仪解模糊测向算法优选分析

Optimization Analysis of Phase Ambiguity Resolving Method in Phase Interferometer

对两种相位干涉仪解模糊测向算法进行了深入讨论,由基本测向原理公式,推导出不同算法各自的测向精度、布阵约束条件的解析解。通过对算法特性的全面分析,可以看到相位空间解模糊测向算法在解算精度、角度输出范围、计算量等多项能力上均更为优秀,虽然其对布阵的约束更强,但在最长基线达到一定程度之后,两种算法的约束程度相当。同时通过数值仿真,对两种算法的解算精度和效果进行了对比,同时对角度空间解模糊测向算法特有的解算角度输出局限问题也进行了验证。

Two ambiguity resolving methods used in phase interferometer are studied.Precise and system restrict of each method is inferred by principle of interferometer-directing.The analysis shows that resolving ambiguity in phase space has a better performance on calculation-precise,output range and computation of direction-finding.Though resolving method in phase space has a stricter restrict in system designing,but there is less difference between them while the length of base line is longer enough.Each result is verified by mathematic simulation with MATLAB.And the output-limiting problem which is performed by ambiguity resolving algorithm in angle-space has been checked carefully at the same time.