阐述了距离-多普勒理论，并将该理论应用到SAR正射纠正，进行了计算机实现，设计了相应的程序模块。
The Range-Doppler theory was introduced especially and applied to SAR image ortho-rectification and realized with programs on the computer.
从理论上分析了由于体目标引起的引信回波信号的多普勒展宽和距离展宽问题，以及它们对近距离扩频测距的影响。
A detailed analysis is made on the echos Doppler spread and range spread caused by body target spread, and on their influence on ranging.
与早期雷达采用距离微分方法测速相比，基于脉冲多普勒理论的雷达测速技术具有实时性好、精度高等优点。
Comparing with the differential range method that early radar adoptive for measuring velocity, the radar, which based on Pulse-Doppler theory, has the better real time capability and high precision.
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