parallel computation of the interleaved fast fourier transform with mpi

... Chapter 12- The Fast Fourier Transform 235 TABLE 12-4 The Fast Fourier Transform in BASIC. 1000 &apos ;THE FAST FOURIER TRANSFORM 1010 'Upon entry, N% contains the number of points in the DFT, ... equations or the correlation method described in Chapter 8. The Fast Fourier Transform (FFT) is another method for calculating the DFT. While it produces...

Ngày tải lên: 13/09/2012, 09:50

... of digital signals and the design of DSP systems. Like the Fourier, Laplace, and z-transforms, the DFT has several important properties that enhance its utility for analyzing finite-length signals. ... bit-reversal order */ fft(X,EXP,U,0); /* Perform IFFT */ 344 FAST FOURIER TRANSFORM AND ITS APPLICATIONS The complex radix-2 FFT program listed in Table 7.3 computes the co...

Ngày tải lên: 28/10/2013, 05:15

Ngày tải lên: 12/01/2014, 22:06

... [H(f)] f=ω/2π (12 .0.2) 496 500 Chapter 12 . Fast Fourier Transform Sample page from NUMERICAL RECIPES IN C: THE ART OF SCIENTIFIC COMPUTING (ISBN 0-5 21- 4 310 8-5) Copyright (C) 19 88 -19 92 by Cambridge ... 498 Chapter 12 . Fast Fourier Transform Sample page from NUMERICAL RECIPES IN C: THE ART OF SCIENTIFIC COMPUTING (ISBN 0-5 21- 4 310 8-5) Copyright (C) 19 88 -19 92 by...

Ngày tải lên: 21/01/2014, 18:20

... K.R. 19 82, Fast Transforms: Algorithms, Analyses, Applications (New York: Academic Press). 12. 2 Fast Fourier Transform (FFT) How much computationis involvedin computingthe discrete Fouriertransform ( 12. 1.7) ... The discrete Fourier transform can, in fact, be computed in O(N log 2 N) operations with an algorithm called the fast Fourier transform, orFFT. The difference b...

Ngày tải lên: 21/01/2014, 18:20

... 1982, Fast Transforms: Algorithms, Analyses, Applications (New York: Academic Press). Brigham, E.O. 1974, The Fast Fourier Transform (Englewood Cliffs, NJ: Prentice-Hall). [1] Bloomfield, P. 1976, Fourier ... times. istep=mmax << 1; theta=isign*(6.2 831 8 530 717959/mmax); Initialize the trigonometric recurrence. wtemp=sin(0.5*theta); wpr = -2.0*wtemp*wtemp; 12.2 Fast Fouri...

Ngày tải lên: 21/01/2014, 18:20

... the Fourier transform( a), sine transform( b), and cosine transform (c), are plotted. The first five basis functions are shown in eachcase. (For the Fourier transform, the real and imaginary parts ... 1982, Fast Transforms: Algorithms, Analyses, Applications (New York: Academic Press). Brigham, E.O. 19 74, The Fast Fourier Transform (Englewood Cliffs, NJ: Prentice-Hall). [1] B...

Ngày tải lên: 21/01/2014, 18:20

... H.J. 1982, Fast Fourier Transform and Convolution Algorithms (New York: Springer- Verlag). 12 .5 Fourier Transforms of Real Data in Two and Three Dimensions Two-dimensional FFTs are particularly ... data is replaced by its inverse transform times the product of the lengths of all dimensions. 12 .5 Fourier Transforms of Real Data in Two and Three Dimensions 52 5 Sample page fro...

Ngày tải lên: 21/01/2014, 18:20

... 1974, The Fast Fourier Transform (Englewood Cliffs, NJ: Prentice-Hall). Swartztrauber, P. N. 19 86, Mathematics of Computation , vol. 47, pp. 323–3 46. 530 Chapter 12. Fast Fourier Transform Sample ... H.J. 1982, Fast Fourier Transform and Convolution Algorithms (New York: Springer- Verlag). 12.5 Fourier Transforms of Real Data in Two and Three Dimensions Two-dimensiona...

Ngày tải lên: 21/01/2014, 18:20

... 534 Chapter 12. Fast Fourier Transform Sample page from NUMERICAL RECIPES IN C: THE ART OF SCIENTIFIC COMPUTING (ISBN ... break; } fourew(file,&na,&nb,&nc,&nd); Start of the permutation pass. jk >>= 1; while (jk == 1) { mm=n; 532 Chapter 12. Fast Fourier Transform Sample page from NUMERICAL RECIPES IN C: THE ART OF SCIENTIFIC COMPUTING (ISBN ... 1-800- 872 -...

Ngày tải lên: 21/01/2014, 18:20

... Interaction of the small heat shock protein with molecular mass 25 kDa (hsp25) with actin Olesya O. Panasenko 1 , Maria V. Kim 1 , Steven B. Marston 2 and Nikolai B. Gusev 1 1 Department of Biochemistry, ... this process. The data in the literature indicate that the small heat shock protein with molecular mass 25 27 kDa (HSP25) play...

Ngày tải lên: 20/02/2014, 23:20

... understanding of the heart as a muscular pump and of the interaction between the heart and the vasculature. The concepts of contractility, preload and afterload are paramount to this understanding ... level, the ventricle is a Figure 5 Cardiac Physiology Page 2 of 23 MECHANICAL PROPERTIES OF THE HEART AND ITS INTERACTION WITH THE...

Ngày tải lên: 22/02/2014, 09:20

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Ngày tải lên: 28/03/2014, 15:20

... introduced in Section 2, followed by the optimal parameters modeling in Section 3. Practical implementation in aeronautical and LMS channels are presented in Section 4. Finally, conclusions are given in Section ... high-spectral efficiency. 1. Introduction The multicarrier system based on the affine Fourier trans- form (AFT-MC), a generalization of the Fourier (FT) and...

Ngày tải lên: 21/06/2014, 07:20

... PARALLEL COMPUTATION OF THE INTERLEAVED FAST FOURIER TRANSFORM WITH MPI A Thesis Presented to The Graduate Faculty of The University of Akron In Partial Fulfillment of the ... Fourier transform of the even index numbers. The other part calculates the Fourier transform of the odd index numbers and then finally merges them to...

Ngày tải lên: 30/10/2014, 20:11