转台测向测试中的非线性测试现象分析

Analysis of Nonlinear Testing Phenomenon on DOA Testing Based on Swivel Table

在转台刻度盘中心、转台旋转中心、阵列测向理论上的参考中心不重合条件下,通过系统误差建模分析,发现基于转台测向测试过程中的非线性测试现象,并进行了分析与仿真,这对当前阵列测向系统测试的不确定性分析、高精度测向系统研制与测试、高精度转台研制具有一定意义。

Under the condition of coincidence error among the center of graduation disc for swivel table, the swiveling center for swivel table and the reference theoretic center for DOA estimating of ar- my antenna, the nonlinear testing phenomenon is found in course of DOA testing based on swiveltable by system error modeling and analysis. It is very interesting for uncertainty analysis of DOA test- ing, developing and testing of high precision DOA estimating system, and manufacturing the high-pre- cision swivel table.