线阵干涉仪与均匀线阵DBF 测向性能对比

Comparison of Direction-finding Performance Between Linear Array Interferometer and Uniform Linear Array DBF

摘要: 从干涉仪线阵测向系统和均匀线阵DBF 测向系统的组成和工作原理入手,介绍了两种测向系统的处理流程,推导了方位估计的C鄄R 下界,通过对C鄄R 下界的分析,对比了两种测向系统的性能,并根据两系统的工作特点,分析其应用场景。所得结论对工程人员具有重要的参考价值。

Abstract: The system composition, operating principle and process flow of linear array interferometer and uniform linear array DBF are introduced firstly. Then, the Cramer-rao lower bounds(CRLB) for each method of direction-finding are deduced. A comparison of direction-finding performance is done through CRLB. An analysis of application scenarios is done according to their features.