Research on Radar Imaging Algorithm Based on X-band SAR
Imaging algorithm plays a decisive role in the final result of SAR imaging radar.Based on the X-band SAR imaging radar,this paper studies the theory of imaging algorithm,discusses the SAR spatial resolution and Doppler frequency shift of imag-ing algorithm,and focuses on the analysis of range processing,range migration processing and azimuth processing in the imaging al-gorithm.X-band SAR radar is used to test the imaging results of 5m objects.The results show that the range resolution and azimuth resolution of SAR radar have great influence on the imaging accuracy.The imaging accuracy of SAR radar is obviously better in front and side view,but the imaging result of oblique view at 15°Angle is inferior to that of front and side view.This is caused by the limi-tations of the imaging algorithm.
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