Speech recognition system′s software consists of several modules such as computation of MFCC,dynamic time warping algorithm,judgment of recognition result,etc.

Time series similar pattern matching based on wavelet and dynamic time warping;

Similarity matching algorithm for interval-valued time series based on dynamic time warping;

Through dynamic time warping analysis to the hot-fire test data and simulated fault data of a certain liquid rocket engine,the warped path sets were obtained.

An efficient lower bounding technique is proposed based on Dynamic Time Warping(DTW) for time series similarity search,which measures the distance between original sequence reduced dimensionality by Piecewise Aggregate Approximation(PAA) approximation method and query sequence reduced dimensionality by Grid Minimum Bounding Rectangle(GMBR) representation approach.