和差数字鉴相分析

Analysis of DigitalPhase Detector Between Sum and Difference Signals

分析了单脉冲跟踪雷达和差通道相位差及Ｉ、Ｑ不正交性对角误差信号符号判别的影响。假设和差通道相位差为θ，Ｉ、Ｑ不正交性相位差为φ，则当θ＋ φ＜ π／２时，和差数字鉴相角误差信号符号判别正确，说明和差通道相位不一致性及Ｉ。

In a m onopulse radar, the angle errorsign is affected by the phase errorbetween sum and difference channeland the phase error between Iand Q channel.The relation betw een the sign and phase errors is analyzed in this paper.If θ+ φ< π/2 where θis the phase error between sum and difference channeland φis the phase error between Iand Q channel,then the angle error sign is correct.The angle error sign isn'tbadly affected by the phase errorbetween sum and differencechanneland the phase errorbetween Iand Qchannel.