【摘要】 论述了ＤＡＳ离线振动分析系统的设计思想和技术特点。该系统采用快速ＦＩＲ非递归多通带带通滤波器和磁盘取样，只计算重抽点的滤波值，分析频率可变，提高了离线分析的速度和灵活性；并将该系统用于Ｃ５１６Ａ立车的故障诊断更多还原

【Abstract】 This paper discusses design’s ideas and technical characteristics of DAS off-linevibration Analysis system,which was developed by Automobile Department of Chongqing Universi-ty. The system uses Fast FIR multi-pass-band digital filter to calculate the filer values of resamplingsignals.It can make off-line analysis much more rapid and flexible,and the system was used inoff-line analysis of C5216A更多还原