Sciweavers

5942 search results - page 84 / 1189
» On the Processing of Decimated Signals
Sort
View
ICASSP
2009
IEEE
14 years 3 months ago
A watermarking-based method for single-channel audio source separation
In this paper, we address the issue of audio source separation with a single channel, i.e. the estimation of source signals from a single mixture of these signals. This problem is...
Mathieu Parvaix, Laurent Girin, Jean-Marc Brossier
ICASSP
2009
IEEE
14 years 3 months ago
Compressive wide-band spectrum sensing
We present a compressive wide-band spectrum sensing scheme for cognitive radios. The received analog signal at the cognitive radio sensing receiver is transformed in to a digital ...
Yvan Lamelas Polo, Ying Wang, Ashish Pandharipande...
ICIP
2001
IEEE
14 years 10 months ago
A directional, shift insensitive, low-redundancy, wavelet transform
Shift variance and poor directional selectivity, two major disadvantages of the discrete wavelet transform, have previously been circumvented either by using highly redundant, non...
Rutger L. van Spaendonck, Felix C. A. Fernandes, S...
ICASSP
2011
IEEE
13 years 28 days ago
Extended array method for detection and direction finding of a weak linear frequency modulated signal
A well known computationally efficient method for parameters estimation of linear frequency modulated (LFM) signals is to mix the received signals with a shifted version of itsel...
Songsri Sirianunpiboon
ICIP
1994
IEEE
14 years 10 months ago
On Symmetric Extensions, Orthogonal Transforms of Images, and Paraunitary Filter Banks
Periodic or symmetric extensions are commonly used for processing images and other finitelength signals with a paraunitary Alter bank (PUFB).Unlike infinite-length signals, PUFBs ...
Ricardo L. de Queiroz, K. Raghunath Rao