The impact on the system of direction finding for the existence of baselines ' obliquity is approved in actual system 给出了相位差和基线倾角的对应关系，并在实际系统中证实了基线倾角的存在产生的相位误差对整个测向系统的影响。
This thesis deals with the synchronization technologies for all digital receiver , particularly carrier offset estimation for mpsk signal 本文研究全数字接收机中的同步技术，重点是mpsk信号的载波频偏和相位误差的估计和恢复算法。
In chapter 4 , bad effect of different types of motion errors on sar imaging is firstly discussed , and the main types of phase errors are simulated 本文在第四章中首先讨论了不同运动误差对成像的不良影响，对主要类型相位误差进行了仿真。
This paper provides two way of df accuracy improvement : one is reducing phase error of the system and the other will be the broadening of system base 论文作者提出和分析了提高测向准确度的两个途径：一是减小测量相位误差，二是增大测量基础。
Chapter 3 explains the theory of dechirp technic used in the spotlight sar at length and introduces the practical realization procedure of eliminating the residual video phase 第三章介绍聚束sar去调频技术的原理及去除剩余视频相位误差的实现步骤。
Finally we measured the performance of the system , analyzed phase error ’ s influence on angle precision of simulated signal and gave the solution 最后对模拟器系统的性能进行了测试,分析了系统中相位误差对信号模拟角度精度的影响,并给出了解决办法。
However , along wth the requirement of the high - resolution , many problems come forth , the core of which is to eliminate the phase errors brought by the motion errors 但是对分辨率要求的提高会带来很多问题，其核心是消除由运动误差引起的相位误差。
The phase error reduction using motion compensation and autofocus algorithms are the essential steps in synthetic aperture radar high resolution imaging 合成孔径雷达实现几何高分辨成像处理的关键之一是进行运动补偿和聚焦处理来补偿各种原因引起的相位误差。
For the reason that the every kind of motion errors was presented in the phase errors , the dissertation discussed two ways to compensate the moving errors 由于各种误差在信号域内以相位误差形式体现,最后探讨了两种双基地sar相位补偿的方法:一发多收法和强点法。
The phase error brought in baselines ' obliquity is analysed specially and the connection to phase difference and baselines ' obliquity is proposed 着重分析了基线倾角的存在引起的相位误差，经分析得出当倾角不为0时，相位函数不再是一条直线，误差的大小与入射角有关。
