基于全通带相位数字补偿的通道校正研究  

Research on channel correction based on all pass-band phase compensation

作　　者：王晓光 WANG Xiaoguang(The 10th Research Institute of China Electronics Technology Group Corporation,Chengdu 610036,China)

机构地区：[1]中国电子科技集团公司第十研究所,四川成都610036

出　　处：《电视技术》2018年第9期15-20,共6页Video Engineering

摘　　要：在多通道接收机中,通道的一致性是阵列通道的关键指标。通道各级在幅度相位上的均存在离散性,没有有效的方法针对电路预先校正通道的一致性,本文研究了有源和无源电路影响相位响应的机理,并提出了通过对通道后验信息的数字相位补偿,结合移相网络改善通道相位一致性的方法。In muhi - channel receiver, channel consistency is the key index of muhi - channel array. There is a discreteness in the phase of the channel in each stage. And there is no effective method to precorrection the consistency of the RF - IF channel. In this paper, the mechanism of the phase response of the active and passive circuits is studied, and the method of improving the phase consistency of the channel through the digital phase compensation by channel posterior informationand phase shift network is proposed.

关 键 词：多通道接收机 通带 后验信息 相位补偿 数字域 

分 类 号：TP919.8[自动化与计算机技术]