多采样率信号处理仿真系统设计与应用  

Design and Application of Simulation System in Multi-rate Sampling Signal Processing

作　　者：阙大顺[1] 王虹[1] 杨杰[1] 

机构地区：[1]武汉理工大学信息工程学院,湖北武汉430070

出　　处：《电气电子教学学报》2015年第5期118-120,共3页Journal of Electrical and Electronic Education

摘　　要：本文针对"数字信号处理"课程中多采样率部分的教学特点,利用C++与Matlab混合编程实现了多采样率数字信号处理仿真系统;该系统可完成信号的采样、整数倍抽取、整数倍插值和有理因子采样率转换等,通过对时域、频域波形的分析,可观察多采样率变化前后所分析信号的时域和频域演化过程,同时具有针对语音信号的多采样率变换的应用演示功能;该系统应用于教学和实验环节,可增强学生学习的主动性,提高课内外学习效果。In allusion to the characteristics and contents of multi-rate sampling in Digital Signal Processing course,a signal processing simulation system is developed based on a mixed programming method of VC ＋ ＋ and Matlab. The system can realize the signal conversion of sampling,integer times decimate,integer times interpose and ra-tional divisor sampling rate. The signal evolution process of time and frequency domain are shown in multi-rate sam-pling variation,and also for speech signal processing. The designed system has been successfully applied to the class teaching and experiment link,and it can enhance the studentsˊlearning initiative and improve learning effects in and out of their class.

关 键 词：数字信号处理 多采样率 仿真系统 

分 类 号：TN911.72[电子电信—通信与信息系统] TP391.9[电子电信—信息与通信工程]