CAJ | 학술논문

数字通信系统中，为适应传输、降低资源消耗、适于处理操作，常需要变换信号的采样率。多采样率信号处理理论从语音信号处理中发展起来，在应用中不断丰富。随着软件无线电的应用，多采样率变换在数字信号领域占据越来越重要的地位。多采样率信号处理技术与小波分析、分数阶傅里叶变换等其他信号处理技术相结合是未来发展的方向。
수자통신계통중，위괄응전수、강저자원소모、괄우처리조작，상수요변환신호적채양솔。다채양솔신호처리이론종어음신호처리중발전기래，재응용중불단봉부。수착연건무선전적응용，다채양솔변환재수자신호영역점거월래월중요적지위。다채양솔신호처리기술여소파분석、분수계부리협변환등기타신호처리기술상결합시미래발전적방향。
The sampling rate of signal often needs to be changed for fitting transmission,reducing resource consumption and suiting process handling in digital communication system. Multirate signal processing theory arose from speech signal pro-cessing and was enriched in application. Multirate signal processing plays an important role in digital signal processing with the application of software radio. It′s a tendency of combining the multirate signal processing with wavelet analysis and fractional Fourier transform.