In chapter 3, signal model of FM-CW SAR is derived on the basis of the analysis of dechirp technology and its resolution.
第三章在分析对SAR系统进行去调频处理的原理及处理后的分辨力情况的基础上,建立了连续波SAR的信号模型。
参考来源 - 连续波合成孔径雷达成像技术研究For ship target, the effect of multi-dimensional rotation to Doppler frequency shift is analyzed and dechirp is proposed to separate scatterers.
对于舰船目标，分析了目标多维转动对多普勒的影响，提出在短时间内解调频分离各散射点。
参考来源 - 雷达目标三维成像技术研究Describes systematically an computationally efficient algorithm for dechirp. We use a fast and accurate frequency estimator synthetic approach to replace the 1 D Search procedure.
系统地研究了快速解线性调频技术，采用了一种快速频率估计的综合算法取代了传统的一维频率搜索方法。
参考来源 - 快速解线性调频技术·2,447,543篇论文数据，部分数据来源于NoteExpress
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。
This algorithm combined with the algorithm estimating and separating parameters of each component using Dechirp Narrowband filter can pick up many peak value once from the WHT plane.
该算法结合解线调和窄带滤波器分离和估计各分量的参数的算法，可以一次提取多个尖峰值。
Based on the remainder theorem and direct dechirp operation, an algorithm for estimation of chirp rate and initial frequency of the subsampling wideband LFM signal unambiguously is presented.
基于中国余数定理解频率模糊和解线调方法，提出一种无模糊欠采样的宽带线性调频信号的调频斜率和初始频率的估计算法。
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