基于极化误差的干涉仪测角性能建模与仿真  

Interferometer Angle Measurement Performance Modeling and Simulation Based on Polarization Error

作　　者：戴幻尧[1,2] 申绪涧 乔会东 崔建岭 

机构地区：[1]63892部队 [2]国防科技大学电子科学与工程学院

出　　处：《计算机仿真》2013年第10期237-240,共4页Computer Simulation

基　　金：国家自然科学基金(60736006)

摘　　要：关于相位干涉仪优化设计问题。现代电子侦察、反辐射武器中经常采用相位干涉原理进行测向,对测向误差的分析往往着眼于基线长度、工作频率、单元幅相一致性、天线隔离度、接收通道噪声等因素,为了解决天线单元的极化误差,提出一个新的观点,即天线单元的极化误差对测角性能也会产生较大影响,并且测角误差敏感于信号源的极化方式,通过对现象进行了数学建模和计算机仿真,证明了方法的正确性,改进方法和当前工程中的测角误差现象是吻合的,可为下一步校准误差提供了理论基础。The principle of phase interference direction finding is often adopted in modern electronic reconnaissance and anti radiation weapon.Traditional direction finding error analysis often focuses on the baseline length,frequency,unit amplitude and phase consistency,isolation of antenna,receiving channel noise and other factors,but does not consider antenna polarization error.This paper put forward a new point of view,that is,the antenna unit polarization error on angle measurement performance can produce bigger effect,and the measurement error is sensitive to the polarization state of signal source.We modeled the phenomenon and carried out the computer simulation.The results prove that the view is correct,which is consistent with the phenomenon in engineering.

关 键 词：极化 干涉仪 测角误差 仿真分析 

分 类 号：TN95[电子电信—信号与信息处理]