基于Matlab的自适应增量调制性能分析  

Performance Analysis for Adaptive Delta Modulation Based on Matlab

作　　者：于子甲[1] 宋启祥[1] 董全德[1] 

机构地区：[1]宿州学院信息工程学院,安徽宿州234000

出　　处：《蚌埠学院学报》2015年第4期13-15,共3页Journal of Bengbu University

基　　金：宿州学院校级科研平台项目(2014YKF44);宿州学院校级项目(2014yyb04;2014yyb03);省级质量工程项目(AH201410379049)

摘　　要：介绍了模数转换和数字编码的一种重要方法并对增量调制系统进行分析,针对非自适应增量调制存在的编码质量不高、占用带宽大的问题,提出一种自适应后向反馈算法,并使用Matlab对其性能进行仿真分析,实验结果证明本算法有更好的信噪比,在低速率上能得到更高质量的编码,从而达到节省带宽的目的。An important method of A / D conversion and digital code was described in this paper,it carried on the analysis to the non-adaptive delta modulation system. For encoding quality is not high,the problem of large bandwidth,the algorithms of an adaptive to post feedback was proposed,and its performance was also analyzed by using Matlab to simulation. The practice proved the algorithm has a better SNR and higher quality encoding on low-rate,so as to achieve the purpose of saving bandwidth.

关 键 词：仿真 自适应 增量调制 

分 类 号：TN761[电子电信—电路与系统]