* === Output === * the @x contains the result of FFT algorithm, so the original data * in @x is destroyed, please store them before using FFT. */ int ifft(complex *x, int N) { int k = 0; for (k=0; k<=N-1; k++) { x[k].img = -x[k].img; } fft(x, N); /*...
* the @x contains the result of FFT algorithm, so the original data * in @x is destroyed, please store them before using FFT. */intifft(complex*x,intN){intk=0;for(k=0;k<=N-1;k++){x[k].img=-x[k].img;}fft(x,N);/* using FFT */for(k=0;k<=N-1;k++){x[k].real...
* the @x contains the result of FFT algorithm, so the original data * in @x is destroyed, please store them before using FFT. */ int ifft(complex *x, int N) { int k = 0; for (k=0; k<=N-1; k++) { x[k].img = -x[k].img; } fft(x, N); /* using FFT */ for ...
therealizationmethodofFFTbasedonDSP TMS320C5402ispresented.ItisprovedthatthealgorithmcanrealizeFFTmathematicaloperationandimproveits speedandprecisionofoperation. Key words : fastfouriertransform ; digitalsignalprocessing ; TMS320C5402 1 引言 傅里叶变换是将信号从时域形式变换为频域形 式表示的一种变换方法....
This is not necessarily reasonable in the digital signal processor (DSP), where the multiplication can be performed in the time equal to that of other operations. From such a viewpoint, this paper proposes an algorithm which matches the feature of DSP, where the pro cessing is fast when ...
directions.However,DSPisbasicllyfromtworespectstosolvethe problemofsignalprocessing:oneistime-domain,theso-calleddigital filter;anotherisspectrum-domain,theso-calledspectrumanalysis. ThepassageismainlyintroducedFFTandDFT,bystudyingaboutthe algorithmofFFTandDFT,studyingdeeplyfromthebasicandlearning, ...
[4] SAIDI A.Decimation-in-time-frequencyFFTalgorithm[M]. Manuscript, To be published.1993. [5] Texas Instruments Incorporated.TMS320C64x/C64x+DSP CPU and instruction set referenceguide[EB/OL].Http://www.ti.com.cn,2008. [6] Texas Instruments Incorporated.TMS320C6000系列DSP编程工具与指南[M...
Radix-2 decimation-in-time (DIT) algorithm Radix-2 decimation-in-frequency (DIF) algorithm An algorithm chosen from FFTW [1] , [2]The dsp.FFT object and the fft function both compute the discrete Fourier transform (DFT) using fast Fourier transform (FFT). However, the object can process ...
In this work, FFT algorithm for reference current generation is discussed. FFT control algorithm is verified using PSIM simulation results with DLL block and C-code. Simulation results are compared with experimental results for FFT algorithm using DSP TMS320F28335 for shunt active power filter ...
In this paper, the author expounds the summary of FFT, discussed the mathematic theory principle and fast Fourier transform algorithm. Key words: DSP; FFT algorithm 中图分类号:TN911.7文献标识码:A 引言 近些年来,数字信号处理技术得到了迅速的发展,特别是随着微计算机和超大规模集成电路的飞跃发展,数字...