Peer-Reviewed Journal Details
Mandatory Fields
O' Toole JM, Mesbah M, and Boashash B
2008
November
IEEE Transactions On Signal Processing
A new discrete analytic signal for reducing aliasing in the discrete Wigner--Ville distribution
Validated
()
Optional Fields
56
11
5427
5434
It is not possible to generate an alias-free discrete Wigner–Ville distribution (DWVD) from a discrete analytic signal. This is because the discrete analytic signal must satisfy two mutually exclusive constraints.We present, in this paper, a new discrete analytic signal that improves on the commonly used discrete analytic signal’s approximation of these two constraints. Our analysis shows that—relative to the commonly used signal—the proposed signal reduces aliasing in the DWVD by approximately 50\%. Furthermore, the proposed signal has a simple implementation and satisfies two important properties, namely, that its real component is equal to the original real signal and that its real and imaginary components are orthogonal.
10.1109/TSP.2008.929325
Grant Details