摘要
时间同步是双站SAR系统中的一个关键问题,本文研究了时间同步误差对双站SAR成像的影响。首先基于基本钟差方程并结合实验测量,建立了双站SAR时间同步误差模型,将时间同步误差分为线性时间同步误差和随机时间同步误差。然后分析了两种时间同步误差对双站SAR成像的影响,并通过仿真对该分析进行了验证;该分析结果为双站SAR时间同步指标要求的提出提供了理论依据。
Time synchronization is the key to bistatic synthetic aperture radar（SAR）, This paper studied the effects of time synchronization errors on bistatic SAR imaging. Based on the basic clock differences equation and the experiment on measure of time synchronization errors, time synchronization errors model is established, and the time synchronization errors are divided into the ＂linear time synchronization error and the random time synchronization error. The different effects on histatic SAR imaging are analyzed for the two different kinds of time synchronization errors, and the analysis is proved by the simulation; and the result can he used to offer the theoretical basis for the time synchronization requirements in bistatic SAR system design.
出处
《国外电子测量技术》
2010年第8期36-40,共5页
Foreign Electronic Measurement Technology
关键词
双站SAR
时间同步
线性时间同步误差
随机时间同步误差
Bistatic SAR
time synchronization
linear time synchronization error
random time synchronization error
