摘要
在快速傅里叶变换原理和Cooley-Tukey快速傅里叶变换算法的基础上,给出一个新的应用于数字信号处理(DSP)的频谱分析方法,并分析该方法的运算效率和存储空间开销.实例证明,本方法的复数乘法运算量与存储空间开销均较小,符合DSP信号处理器的特点,适合应用于采用高性能DSP的MP3/MP4或手机等消费电子产品.
Based on fast Fourier transform principle and Cooley-Tukey fast Fourier transform algorithm,a new method of frequency and spectrum analysis which applies in digital signal processing(DSP) is presented,and the operational efficiency and memory space of the method are analyzed.Example shows that the new method have less amount of complex multiplication and small memory space which is fit for DSP.So the method is very suitable for MP3/MP4 or mobile phone and other consumer electronic products which use high-performance DSP.
出处
《福建师范大学学报(自然科学版)》
CAS
CSCD
北大核心
2011年第4期27-30,共4页
Journal of Fujian Normal University:Natural Science Edition
基金
福建省教育厅资助项目(JA09055)
关键词
快速傅里叶变换
频谱分析
数字信号处理
fast Fourier transform
frequency and spectrum analysis
digital signal processing