机载二维干涉仪测向误差分析  

Error Analysis of Direction Finding for Airborne Two-Dimension Phase Interferometer

作　　者：毛虎[1] 杨建波[1] 邱宏坤[1] 

机构地区：[1]空军航空大学,长春130022

出　　处：《火力与指挥控制》2011年第12期67-71,共5页Fire Control & Command Control

摘　　要：以相位干涉仪测向原理为基础,对机载二维干涉仪测向误差产生原因进行了详细的阐述。分析了内部噪声造成的相位测量误差和载机倾斜造成的基线位置变化对测向结果的影响。考虑电波传输的多径效应,探讨了二径信道和R ice信道下的测向误差。针对仿真结果中各类误差的变化规律,提出具体改进思路和解决方法。Base on the principle of phase interferometer direction finding,the measure error causes of airborne two-dimension phase interferometer is interpreted detailedly,phase error caused by interior noise and baseline location changing caused by airplane inclined affecting direction finding result are analysed.Considering multipath effects of signal transmitting process,direction finding error is discussed below the two-ray channel and Rice channel circumstance.Aim at changing rule of various error in the simulation result,improving thought and solving method are proposed reasonedly.

关 键 词：相位干涉仪 测向误差 多径效应 

分 类 号：TN95[电子电信—信号与信息处理]