sas system meaning in Chinese

sas系统

In chapter two , psr ( point spread response ) h ( t , x ; r0 ) is adopted to depict the model of sas system . exact transfer function is also given . time domain algorithm , range - doppler algorithm and wave number domain algorithm are being discussed and compared on this foundation
在此基础上，分别讨论时域算法、距离? ?多普勒算法、波数域算法并对其进行了比较，并对波数域算法的并行性做了初步研究。