下行宽带信号天线组阵试验验证及分析

下行宽带信号天线组阵试验验证及分析

内容简介：宽带信号天线组阵合成因其特有的优势成为深空目标探测的必然发展趋势，其关键技术是高精度时延差和相位差估计补偿技术。利用嫦娥二号卫星下行宽带信号进行了四天线组阵合成试验，试验结果表明，四天线组阵的合成效率高于97％，验证了宽带信号时延差、相位差估计和补偿的准确性，同时也验证了深空下行宽带信号天线组阵的可行性。

Abstract：Antenna arraying for wideband signals is becoming an inevitable trend as deep space tasks increase,and one of its key techniques is high precision delay and phase differences estimation and compensation. A 4-antenna downlink arraying experiment for wideband signals of CE-2 is conducted,and the result indicates that the combining efficiency is higher than 97%,which proves the fea-sibility of deep space downlink wideband signal arraying.

作者：孟玮, 刘莹, 张娅楠,

关键词：天线组阵, 宽带信号, 信号合成, 合成效率,