基于信号流图的多通道测向雷达天馈系统误差分析

在多通道测向雷达天馈系统中，我们需要对系统进行校准来判断通道间信号相位和幅度的一致性、稳定性。为了有效判断系统校准数据中的误差值，找出引起系统误差的主要误差源，本文给出了一种基于信号流图的分析方法。该方法可根据流图相关法则直接得出精确结果并分析出主要误差源的位置，比传统的基于传输矩阵的分析方法更直观、更快捷。

The Error Analysis Based on Signal Flow Graph of Multi-channel Direction-finding Radar Antenna/Feeding System

In multi-channel direction-finding radar antenna and feeding system, we need to calibrate the system to determine the inter-channel phase and amplitude of the signal consistency, stability. In order to effectively determine error value in the system calibration data, to identify the main error sources in the system, this paper introduced a method to signal flow diagram analysis method. The method used to overcome the traditional lack of transfer matrix method and achieved good results of the analysis.