包括HHT测试程序以及HHT在地震信号处理，轨道异常信号处理，微弱信号检测，语音信号处理，和基于HHT改进算法的介绍-Including the HHT test procedures as well as the HHT in seismic signal processing, track abnormal signal processing, signal detection, speech signal processing, and introduction of improved a