线性调频脉冲串制式合成孔径雷达实时成像算法和方案的设计和模拟

System design and simulation of real time processor of SAR using linear frequency modulated burst pulses

介绍了线性调频（LFM）脉冲串制武合成孔径雷达（SAR）提高距离向分辨率原理，并且提出线性调频SAR的信号处理算法和步骤，避免了为提高距离向分辨率而加大系统带宽的问题。通过模拟验证了算法的正确性，并分析了计算量。设计了相应的SAR实时成像处理器方案，满足了这种新体制SAR系统的大规模成像处理的要求。

In this paper, the principle of improving the range resolution of Synthetic Aperture Radar （SAR） using Linear Frequency Modulated （LFM） burst ptdses is introduced. Then the signal processing arithmetic and steps of LFM burst ptdses SAR is suggested. It can avoid widening bandwidth of radar system for high range resolution. The validity of the arithmetic is tested through simulation and the calculation overhead is analyzed. In the end, the design of the corresponding real-time signal processor is presented. It satisfies the request of the new mode SAR system with high speed image processing.