由于数字信号处理(digital signal processing)的领域中,我们处理的信号都是经过采样(sampling)的,而这些信号的采样点数是有限的。因此离散Fourier变换是一个有限维内积空间里的基变换。我们设信号采样的数量为N,则我们的信号向量 x\in\mathbb{C}^N 。在离散场景下我们定义信号(时域下的)自然基: \mathbf{\hat{e}...
由于数字信号处理(digital signal processing)的领域中,我们处理的信号都是经过采样(sampling)的,而这些信号的采样点数是有限的。因此离散Fourier变换是一个有限维内积空间里的基变换。我们设信号采样的数量为N,则我们的信号向量 x\in\mathbb{C}^N 。在离散场景下我们定义信号(时域下的)自然基: \mathbf{\hat{e}...
Harris, Frederic J., " Time Domain Signal Processing with the DFT ", Handbook of Digital Signal Processing Engineering Applications, Academic Press, 1987, Chapter 8, pp. 633-666.Harris, F.J., Time domain signal processing with the DFT, in D. F. Elliot, ed., Handbook of Digital Signal ...
DFT是离散傅里叶变换的意思，可以参见信号与系统或数字信号处理基础。DFTabbr. 离散傅里叶变换（Discrete Fourier Transformation）短语interpolated DFT 插值离散傅里叶变换DFT algorithm 离散傅氏变换法相关例句：1.Furthermore, this paper introduced the all phase DFT spectrum analysis andtestedits good ...
0, 11/2010 Software Optimization of DFTs and IDFTs Using the StarCore SC3850 DSP Core The Discrete Fourier transform (DFT) is a transform used for Fourier analysis of a finite sampled sequence of a signal. The DFT is widely employed in signal processing and related fields to analyze the ...
[2] FU H, KAM P Y. MPA/ML estimation of the frequency and phase of a single sinusoid in noise[J]. IEEE Transactions on Signal Processing, 2007,55(3):834-845. [3] VOLKER B, HANDEL P. Frequency estimation from proper sets of correlations[J]. IEEE Transactions on Signal Processing, ...
[6] XIE M,DING K.Correction for the frequency,amplitude and phase in FFT of harmonic sigial[J].Mechanical System and Signal Processing,1996,10(2):211-221. [7] 丁康,陈健林,苏向荣.平稳和非平稳振动信号的若干处理方法及发展[J].振动工程学报,2003,16(1):1-10. ...
第三章离散傅立叶变换DFT3.1 离散傅立叶变换的几种形式3.2 离散傅里叶变换DFT3.3 离散傅里叶变换的性质3.4 频域采样数字信号处理,;:啖Digital signal processing土工离散傅立lO换的几种形式1 .连续周
[4] FARHANG-BOROUJENY B,YUEN C H.Cosine modulated and offset QAM filter bank multicarrier techniques:a continuous-time prospect[J].EURASIP Journal on Advances in Signal Processing,2010,2010(1):1-17. [5] BELLANGER M,LE RUYET D,RO...
In this program we demonstrate linear filtering operation using DFT. We take sine waves of different frequencies, and plot them. Then we mix all the sine waves to make a composite signal. We take DFT of the composite signal and plot it to show that all the frequencies are present. Then ...