Sciweavers

ICASSP
2011
IEEE
13 years 3 months ago
Performance analysis of optimal beamforming in MIMO dual-hop amplify-and-forward systems
This paper presents an analytical investigation on the performance of optimal beamforming scheme in multiple-input multiple-output dual-hop amplify-and-forward systems. We first ...
Caijun Zhong, Tharmalingam Ratnarajah, Shi Jin, Ma...
ICASSP
2011
IEEE
13 years 3 months ago
Near-field array shape calibration
In the important domain of array shape calibration, the near-field case poses a challenging problem due to the array response complexity induced by the range effect. In this pape...
Shuang Wan, Pei-Jung Chung, Bernard Mulgrew
ICASSP
2011
IEEE
13 years 3 months ago
Robust video object tracking based on multiple kernels with projected gradients
In kernel-based video object tracking, the use of single kernel often suffers from the occlusion. In order to provide more robust tracking performance, multiple inter-related kern...
Chun-Te Chu, Jenq-Neng Hwang, Hung-I. Pai, Kung-Mi...
ICASSP
2011
IEEE
13 years 3 months ago
Bound-ratio minimization of filter bank frames by periodic precoding
Frame (upper and lower) bound ratio is a key factor of numerical stability of frame systems. While tight frames, of which the minimal ratio 1 is achieved, are much preferred in ma...
Li Chai, Jingxin Zhang
ICASSP
2011
IEEE
13 years 3 months ago
Analysis-synthesis based speech enhancement with improved spectrum envelope estimation by tracking speech dynamics
This paper presents a Kalman tracking approach to re-estimate clean spectral amplitude from noisy speech spectrum for re-synthesis based speech enhancement. The motivation of usin...
Ruofei Chen, Cheung-Fat Chan
ICASSP
2011
IEEE
13 years 3 months ago
A dynamic approach to the selection of high order n-grams in phonotactic language recognition
Due to computational bounds, most SVM-based phonotactic language recognition systems consider only low-order n-grams (up to n = 3), thus limiting the potential performance of this...
Mikel Peñagarikano, Amparo Varona, Luis Jav...
ICASSP
2011
IEEE
13 years 3 months ago
Robust nonparametric regression by controlling sparsity
Nonparametric methods are widely applicable to statistical learning problems, since they rely on a few modeling assumptions. In this context, the fresh look advocated here permeat...
Gonzalo Mateos, Georgios B. Giannakis
ICASSP
2011
IEEE
13 years 3 months ago
Real-time software implementation of an IEEE 802.11a baseband receiver on Intel multicore
We present a software-only implementation of an IEEE 802.11a (WiFi) receiver optimized for Intel multicore platforms. The receiver is about 50 times faster than a straightforward ...
Christian R. Berger, Volodymyr Arbatov, Yevgen Vor...
ICASSP
2011
IEEE
13 years 3 months ago
Occlusion-based depth ordering on monocular images with Binary Partition Tree
This paper proposes a system to relate objects in an image using occlusion cues and arrange them according to depth. The system does not rely on any a priori knowledge of the scen...
Guillem Palou, Philippe Salembier
ICASSP
2011
IEEE
13 years 3 months ago
An efficient peak frequency estimator for product high-order ambiguity function
In this paper, we consider improvement of parameter estimation accuracy of multicomponent polynomial-phase signals (mc-PPSs) using the product high-order ambiguity function (PHAF)...
Slobodan Djukanovic, Vesna Popovic