| 快速傅里叶变换在频谱分析中的应用 |
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| 引用本文： | 胡丽莹,肖蓬. 快速傅里叶变换在频谱分析中的应用[J]. 福建师范大学学报(自然科学版), 2011, 27(4): 27-30 |
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| 作者姓名： | 胡丽莹 肖蓬 |
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| 作者单位： | 福建师范大学数学与计算机科学学院,福建福州,350108 |
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| 基金项目： | 福建省教育厅资助项目(JA09055) |
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| 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.
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| 关 键 词： | 快速傅里叶变换 频谱分析 数字信号处理 |
Application of Fast Fourier Transform in Frequency and Spectrum Analysis |
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| HU Li-ying,XIAO Peng. Application of Fast Fourier Transform in Frequency and Spectrum Analysis[J]. Journal of Fujian Teachers University(Natural Science), 2011, 27(4): 27-30 |
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| Authors: | HU Li-ying XIAO Peng |
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| Affiliation: | HU Li-ying,XIAO Peng(School of Mathematics and Computer Science,Fujian Normal University,Fuzhou 350108,China) |
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| Abstract: | 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-pe... |
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| Keywords: | fast Fourier transform frequency and spectrum analysis digital signal processing |
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