160 search results - page 21 / 32 » On the diagonalization of the discrete Fourier transform |
ICASSP
2010
IEEE
13 years 7 months ago
2010
IEEE
We propose a novel algorithm for sparse system identification in the frequency domain. Key to our result is the observation that the Fourier transform of the sparse impulse respo...
CEE
2010
13 years 7 months ago
2010
This paper proposes a simple and efficient decision feedback equalizer (DFE) for Discrete Fourier Transform-Spread Orthogonal Frequency Division Multiplex (DFT-S OFDM) system in Ev...
FOCM
2008
13 years 7 months ago
2008
We investigate the problem of reconstructing sparse multivariate trigonometric polynomials from few randomly taken samples by Basis Pursuit and greedy algorithms such as Orthogona...
JISE
2006
13 years 7 months ago
2006
In this paper, we use the tensor product notation as the framework of a programming methodology for designing block recursive algorithms. We first express a computational problem ...
CORR
2011
Springer
13 years 1 months ago
2011
Springer
A fundamental question of longstanding theoretical interest is to prove the lowest exact count of real additions and multiplications required to compute a power-of-two discrete Fo...