Integrating practical application of noise reduction of rotary piston compressor , the dissertation designs and develops the system of signal collection and analysis to test vibration and noise and analyze structure dynamics . furthermore , the dissertation researches the theory of noise resource , noise reduction and modern signal analysis and solves some problem of theory and practice 论文分析了国内外现代信号分析和空调压缩机的研究现状和发展趋势，论文紧密结合滚动转子压缩机减振降噪研究的实际应用，设计开发出了适用于振动噪声测试、结构动力学分析的信号采集处理分析系统，对滚动转子压缩机的噪声源识别和减振降噪机理及现代信号分析技术进行了深入系统的研究，取得了实效。
