DTW算法在实现小词汇表孤立词识别系统时既简单又有效 ,在特定的场合下获得了广泛的应用。但DTW算法实 际应用时有许多缺点 ,本文对语音识别数学模型DTW作了深入的研究 ,提出了改进算法-DTW algorithm in small vocabulary isolated word recognition system is simple and effective, in particular occasions to obtain a wide range of applications