DTW算法在实现小词汇表孤立词识别系统时既简单易懂又有效 ，在特定的场合下获的了广泛的应用。但但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 to understand and effective in specific situations have been a wide range of applications. But the practical application of the DTW algorithm has many shortcomings, in depth study of the mathematical model DTW speech recognition, and proposed an improved algorithm