比相式测向接收机测向范围分析及仿真

Analysis and Simulation of Directrion-finding Scope for the Receiver Based on Phase-discrimination Method

从比相式测向接收机的测向原理入手,对测向接收机的测向不模糊范围和解模糊算法进行了理论分析,并通过仿真实验验证了测向范围理论分析结论的有效性。仿真和分析结果表明,采用整数搜索法解相位模糊可满足系统指标要求,加权平均方法充分利用了天线阵元间的相位关系,能有效地降低入射角的估计方差,具有广阔的应用前景。

According to direction-finding principle of direction-finding receiver, the direction-finding scope and related solving am- biguity algorithm of direction-finding receiver is analysed theoretically. The validity of theoretie analysis to direction-finding scope has been verified by simulation experiment at last. Based on the result of emulation, the requirement of system can be satisfied by adopting the integer search method in dealing with the phase ambiguity. Weight average method which makes use of the phase rela- tions among the antenna array elements is very effective to decrease the estimation variance of angle incidence, so there is a very broad prospect for application.