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ICASSP
2011
IEEE
12 years 11 months ago
Maximum a posteriori based regularization parameter selection
The 1 norm regularized least square technique has been proposed as an efficient method to calculate sparse solutions. However, the choice of the regularization parameter is still...
Ashkan Panahi, Mats Viberg
ICASSP
2011
IEEE
12 years 11 months ago
Broadband direction estimation method utilizing combined pressure and energy gradients from optimized microphone array
This paper proposes a method for analyzing the direction of the arrival of sound by estimating the sound intensity vector from the pressure and energy gradients of closely-spaced ...
Jukka Ahonen, Ville Pulkki
CORR
2010
Springer
84views Education» more  CORR 2010»
13 years 4 months ago
A Robust Beamformer Based on Weighted Sparse Constraint
Applying a sparse constraint on the beam pattern has been suggested to suppress the sidelobe level of a minimum variance distortionless response (MVDR) beamformer. In this letter, ...
Yipeng Liu, Qun Wan, Xiaoli Chu
TSP
2008
94views more  TSP 2008»
13 years 7 months ago
Oblique Projections for Direction-of-Arrival Estimation With Prior Knowledge
Estimation of Directions-Of-Arrival (DOA) is an important problem in various applications and a priori knowledge on the source location is sometimes available. To exploit this inf...
Rémy Boyer, Guillaume Bouleux
ICASSP
2011
IEEE
12 years 11 months 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