CAJ | 학술논문

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。
본문침대“수자신호처리”과정중다채양솔부분적교학특점，이용 C ++여 Matlab 혼합편정실현료다채양솔수자신호처리방진계통；해계통가완성신호적채양、정수배추취、정수배삽치화유리인자채양솔전환등，통과대시역、빈역파형적분석，가관찰다채양솔변화전후소분석신호적시역화빈역연화과정，동시구유침대어음신호적다채양솔변환적응용연시공능；해계통응용우교학화실험배절，가증강학생학습적주동성，제고과내외학습효과。
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.