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DE-CMA:An Improved Blind Equalization Algorithm Used in3G Connection Systems
Wang Ji,Hu Aiqun,Song Yubo
Strategic Study of CAE 2007, Volume 9, Issue 2, Pages 54-57
The convergence of the Constant-modulus algorithm widely used in DVB system is a complex problem.Firstly,some influencing factors such as cost function,iterative equation and filter coefficients are considered;then,in this paper,an ameliorative algorithm with time-delay estimate is proposed,which can avoid converging to the ill solution by correcting the position of main path.Simulation results demonstrate the proposed algorithm can highly improve the convergence performance of the primary one.Besides,its simplicity and efficiency make it feasible in the high-rate 3G connection application.
Keywords: blind equalization CMA ill-convergence time-delay-estimate
Energy-aware scheduling with reconstruction and frequency equalization on heterogeneous systems
Yong-xing LIU,Ken-li LI,Zhuo TANG,Ke-qin LI
Frontiers of Information Technology & Electronic Engineering 2015, Volume 16, Issue 7, Pages 519-531 doi: 10.1631/FITEE.1400399
Keywords: Directed acyclic graph Dynamic voltage scaling Energy aware Heterogeneous systems Task scheduling
Myung-jae KIM, Il-ho YANG, Min-seok KIM, Ha-jin YU
Frontiers of Information Technology & Electronic Engineering 2017, Volume 18, Issue 5, Pages 738-750 doi: 10.1631/FITEE.1500380
Keywords: Speaker recognition Histogram equalization i-vector
FM Radio Based Non-cooperative Bistatic Radar Experimental System
Wang Yan
Strategic Study of CAE 2007, Volume 9, Issue 11, Pages 39-42
An experimental FM radio based non-cooperative bistatic radar is briefly described, and two related key techniques, i. e. line-of-sight (LOS) signal cancellation and targets detection, are listed in this paper. Other than algorithms appeared in most papers, NLMS based non-causal filters are used to equalize the array multi-channel differences. The LOS signal about 80 dB above the noise level is cancelled completely after joint time-space processing. Civil airplanes are detected 300 km away. Experimental data verifies the simplicity and effectiveness of the proposed method.
Keywords: FM radio non-cooperative bistatic radar LOS signal equalization DBF
Wei Li, Siqi Chen, Xiongbin Peng, Mi Xiao, Liang Gao, Akhil Garg, Nengsheng Bao
Engineering 2019, Volume 5, Issue 4, Pages 795-802 doi: 10.1016/j.eng.2019.07.005
An energy-storage system comprised of lithium-ion battery modules is considered to be a core component of new energy vehicles, as it provides the main power source for the transmission system. However, manufacturing defects in battery modules lead to variations in performance among the cells used in series or parallel configuration. This variation results in incomplete charge and discharge of batteries and non-uniform temperature distribution, which further lead to reduction of cycle life and battery capacity over time. To solve this problem, this work uses experimental and numerical methods to conduct a comprehensive investigation on the clustering of battery cells with similar performance in order to produce a battery module with improved electrochemical performance. Experiments were first performed by dismantling battery modules for the measurement of performance parameters. The k-means clustering and support vector clustering (SVC) algorithms were then employed to produce battery modules composed of 12 cells each. Experimental verification of the results obtained from the clustering analysis was performed by measuring the temperature rise in the cells over a certain period, while air cooling was provided. It was found that the SVC-clustered battery module in Category 3 exhibited the best performance, with a maximum observed temperature of 32 ℃. By contrast, the maximum observed temperatures of the other battery modules were higher, at 40 ℃ for Category 1 (manufacturer), 36 ℃ for Category 2 (manufacturer), and 35 ℃ for Category 4 (k-means-clustered battery module).
Keywords: Clustering algorithm Battery module Equalization Electric vehicle
Title Author Date Type Operation
DE-CMA:An Improved Blind Equalization Algorithm Used in3G Connection Systems
Wang Ji,Hu Aiqun,Song Yubo
Journal Article
Energy-aware scheduling with reconstruction and frequency equalization on heterogeneous systems
Yong-xing LIU,Ken-li LI,Zhuo TANG,Ke-qin LI
Journal Article
Histogram equalization using a reduced feature set of background speakers’ utterances for speaker recognition
Myung-jae KIM, Il-ho YANG, Min-seok KIM, Ha-jin YU
Journal Article