Increasing cache hit for synthetic aperture radar

A synthetic aperture radar (SAR) antenna transmits radar pulses and receives reflections thereof. The SAR is typically used on mobile platforms, such as airplanes, drones or spacecrafts. Since the position of the antenna varies between the time at which a radar pulse is transmitted and the time at which the reflection of the pulse is received, the synthetic aperture of the radar is increased, giving a higher accuracy to a radar of the same (physical) size than conventional beam scanning radars. The pulse data is processed using a back projection algorithm to produce a two-dimensional image that can be used for navigation. The order in which the SAR data is processed can affect the likelihood of cache hit when accessing the data. Since accessing data from the cache rather than the memory storage device reduces both access time and power consumption, the device accessing more data from the cache has greater battery life and range. 一种合成孔径雷达(SAR)天线发射雷达脉冲且接收其反射。SAR通常用在移动平台上，例如飞机、无人机或航天器。由于所述天线的位置在发射雷达脉冲的时间与接收所述脉冲的