一种雷达通道幅相不平衡校正新方法

在二次雷达中采用单脉冲来获得较高的测角精度，而和差道接收机的幅度和相位的不一致性会影响二次雷达的测角精度。本文采用一种在i、q数据求模后分别补偿幅度和相位的方法，其中幅度采用log模块补偿。该方法能有效补偿和、差、控制三通道幅相不平衡，并且结构简洁、高效。经仿真，达到良好的补偿效果。

A Novel Method of Correcting Radar Channel Amplitude-phase Imbalance

The higher angle measurement accuracy can be obtained in a secondary radar by adopting monopulse. However, inconsistency of amplitude and phase in sum-difference channel receiver may affect angle measurement of the secondary radar. A method of compensating amplitude and phase separately is employed after I and Q data are moduled, of which, amplitude is compensated with log module. Using this method can compensate imbalance of amplitude and phase in sum, difference and control channels effectively. The method is featured with concise and high efficiency. It is verified that using tiffs method can achieve good compensation effect via simulation.