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ICASSP
2011
IEEE
7 years 10 months ago
Spectral subtraction on real and imaginary modulation spectra
In this paper, we propose a novel phase preserving spectral subtraction method for enhancing speech in noise. Instead of the conventional approach of carrying out subtraction on t...
Yi Zhang, Yunxin Zhao
TASLP
2010
138views more  TASLP 2010»
8 years 1 months ago
Glimpsing IVA: A Framework for Overcomplete/Complete/Undercomplete Convolutive Source Separation
Abstract--Independent vector analysis (IVA) is a method for separating convolutedly mixed signals that significantly reduces the occurrence of the well-known permutation problem in...
Alireza Masnadi-Shirazi, Wenyi Zhang, Bhaskar D. R...
CDC
2010
IEEE
8 years 1 months ago
Thermal building model identification using time-scaled identification methods
The aim of this paper is to propose a robust and accurate method for the parametric identification of the thermal behaviour of low consumption buildings. These buildings are known ...
Paul Malisani, Francois Chaplais, Nicolas Petit, D...
INFOCOM
2010
IEEE
8 years 5 months ago
A Frequency Domain Model to Predict the Estimation Accuracy of Packet Sampling
—In network measurement systems, packet sampling techniques are usually adopted to reduce the overall amount of data to collect and process. Being based on a subset of packets, t...
Luigi Alfredo Grieco, Chadi Barakat
AUTOMATICA
2002
97views more  AUTOMATICA 2002»
8 years 6 months ago
Frequency-domain subspace system identification using non-parametric noise models
- In the general case of non-uniformly spaced frequency domain data and/or arbitrarily colored disturbing noise, the frequency domain subspace identification algorithms described i...
Rik Pintelon
TIFS
2008
200views more  TIFS 2008»
8 years 6 months ago
Color Image Watermarking Using Multidimensional Fourier Transforms
This paper presents two vector watermarking schemes that are based on the use of complex and quaternion Fourier transforms and demonstrates, for the first time, how to embed waterm...
Tsz Kin Tsui, Xiao-Ping Zhang, Dimitrios Androutso...
SIVP
2008
142views more  SIVP 2008»
8 years 6 months ago
Improved phase estimation based on complete bispectrum and modified group delay
In this paper, a new method for extracting the system phase from the bispectrum of the system output has been proposed. This is based on the complete bispectral data computed in t...
S. V. Narasimhan, Nandini Basumallick, Ratana Chai...
JSAC
2008
128views more  JSAC 2008»
8 years 6 months ago
Iterative frequency domain channel estimation for dft-precoded ofdm systems using in-band pilots
We consider two techniques of in-band frequency domain multiplexed (FDM) pilots using interleaved frequency domain multiple access (IFDMA) signal with a Chu sequence for DFT-precod...
Chan-Tong Lam, David D. Falconer, Florence Danilo-...
AUTOMATICA
2007
68views more  AUTOMATICA 2007»
8 years 6 months ago
Frequency domain maximum likelihood estimation of linear dynamic errors-in-variables models
- This paper studies the linear dynamic errors-in-variables problem in the frequency domain. First the identifiability is shown under relaxed conditions. Next a frequency domain Ga...
Rik Pintelon, Johan Schoukens
AUTOMATICA
2008
123views more  AUTOMATICA 2008»
8 years 6 months ago
Identification with stochastic sampling time jitter
This work investigates how stochastic sampling jitter noise affects the result of system identification, and proposes a modification of known approaches to mitigate the effects of...
Frida Eng, Fredrik Gustafsson
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