Azimuth preprocessing is the key to real-time SAR processor, the precision of computation in the azimuth preprocessing has an impact on the azimuth focus quality.

• 摘要实时方位向预处理是SAR实时成像处理器设计中的关键环节，预处理中运算精度的高低直接影响着SAR图像方位向聚焦的好坏。