61 search results - page 1 / 13 » Compressive spectral estimation for nonstationary random pro... |
ICASSP
2009
IEEE
14 years 2 months ago
2009
IEEE
We propose a “compressive” estimator of the Wigner-Ville spectrum (WVS) for time-frequency sparse, underspread, nonstationary random processes. A novel WVS estimator involving...
ICASSP
2011
IEEE
12 years 11 months ago
2011
IEEE
Spectral envelopes of speech signals are typically obtained by making stationarity assumptions about the signal which are not always valid. The Adaptive Quasi-Harmonic Model (AQHM...
ICASSP
2011
IEEE
12 years 11 months ago
2011
IEEE
Spectral imaging is of interest in many applications, including wide-area airborne surveillance, remote sensing, and tissue spectroscopy. Coded aperture spectral snapshot imaging ...
ICASSP
2011
IEEE
12 years 11 months ago
2011
IEEE
In many applications non-stationary Gaussian or stationary nonGaussian noises can be observed. In this paper we present a maximum a posteriori estimation jointly of spectral ampli...
ICASSP
2010
IEEE
13 years 7 months ago
2010
IEEE
In Cognitive Radio scenarios channelization information from primary network may be available to the spectral monitor. Under this assumption we propose a spectral estimation algor...