The Phase Gradient Autofocus (PGA) algorithm has been widely used in Spotlight Synthetic Aperture Radar (SAR) to remove motion-induced blurs in the images. The PGA algorithm has been proven to be a superior autofocus method. PGA assumes a nar

死亡谷是著名的爱德华空军基地和太空实验场所，航天穿梭机每年在这里数次升空和回收，并且进行火星探测器的实验。这是一种常见的数据

通过matplotlib中的pyplot画折线图(python program,test pyplot to display the tempture of Death valley.)