语音电子门锁设计与实现

电子机电论文编号:JD045    字数:10350,页数:38

目录
摘要 .................................................................2
引  言 ...............................................................3
第一章  算法原理..................................................... 5
1.1 预处理 ...........................................................5
（1） 去噪........................................................... 6
（2）端点检测 .......................................................6
1.2 特征提取......................................................... 7
(1) 特征参数的选取................................................... 7
(2)   LPCC参数的提取 .................................................8
（3） LPC模型阶数p的确定............................................. 9
     1.3 基音参数的提取　........................................... 9
1.4 模式匹配　　 ....................................................10
第二章硬件系统...................................................... 12
2.1 说话人识别模块各组成部分完成的功能............................... 12
（1）按键输入部分 ....................................................12
（2）语音信号采集部分 ................................................12
（3）FLASH存储扩展部分 ...............................................13
（4）扬声器输出部分 ..................................................13
（5）控制输出部分 ....................................................13
（6）LCD模组部分 .....................................................13
（7） SPCE061A .......................................................14
　2.2 说话人识别模块三种工作模式..................................... 14
（1）训练模式........................................................ 14
　（2）认证模式...................................................... 14
　（3）密码工作模式...................................................14
第三章系统软件部分设计实现 ..........................................15
3.1  软件设计操作平台简介：（μ'nSP  IDE）........................... 15
3.2  程序功能实现简介图...............................................15
3.3  系统调试 ....................................................... 17
第四章设计总结 ......................................................19
致谢........................................................... .....20
参 考 文献 ..........................................................21
附录(1)程序表.........................................................22
附录（2）器件列表.................................................... 39

摘要
生物识别技术是利用人体生物特征进行身份认证的一种技术，是目前公认的最为方便与安全的识别技术。由于每个人的生物特征具有与其他人不同的唯一和在一定时期内不变的稳定性，不易伪造和假冒，所以利用牲识别和技术进行身份认证，安全、准确、可靠。     本设计介绍采用声纹识别技术、在凌阳SPCE061A单片机上实现的一种语音电子门锁身份认证系统。实验结果表明，系统性能稳定，识别效果好，可以推广使用。关键词:声纹识别 基于周期 线性预测 模式匹配 DTW 　　　　
Abstract: The biological recognition technology is carries on the status authentication using the human body biological features one kind of technology, is the present recognition most convenient and the safe recognition technology. Because each person's biological features have with other people different only and withing certain amount of time the invariable stability, not easy forge and counterfeit, therefore carries on the status authentication using the domestic animal recognition and the technology, the security, is accurate, is reliable. This design introduction uses the voice print recognition technology, one kind of pronunciation electronic lock status authentication system which monolithic integrated circuit realizes in Ling Yang on the SPCE061A. The experimental result indicated that the system performance is stable, the recognition effect is good, may promote the use. 

Key word: Voice print recognition based on cycle linear prediction pattern matching DTW