68 search results - page 1 / 14 » Generalized discrete Fourier transform with nonlinear phase |
TSP
2010
13 years 2 months ago
2010
Constant modulus transforms like discrete Fourier transform (DFT), Walsh transform, and Gold codes have been successfully used over several decades in several engineering applicati...
ICASSP
2010
IEEE
13 years 7 months ago
2010
IEEE
— In this paper, we present design methods to optimize nonlinear phase functions of Generalized DFT (GDFT) for minimized auto and cross correlations. It is shown that GDFT offers...
SYMMETRY
2010
13 years 2 months ago
2010
: We propose a group-theoretical approach to the generalized oscillator algebra A recently investigated in J. Phys. A: Math. Theor. 2010, 43, 115303. The case 0 corresponds to th...
AAECC
1993
Springer
13 years 11 months ago
1993
Springer
We give estimates for exponential sums over finite fields in several variables. We study the case where the phase is either quadratic or more generally invariant under the action ...
PAMI
2008
13 years 7 months ago
2008
This paper presents an efficient algorithm for iris recognition using phase-based image matching--an image matching technique using phase components in 2D Discrete Fourier Transfor...