Journal of Electronics (China)
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Posterior Cramér-Rao bounds analysis for passive target tracking
Journal of Electronics (China) - - 2008
Forward link partial-balance power control algorithm for W-CDMA communication
Journal of Electronics (China) - Tập 17 - Trang 25-30 - 2000
Balance power control is based on the idea of balancing Carrier to Interference Ratio (CIR) of all wireless links. Unbalance power control means that different traffics can achieve different CIR at receivers. This paper proposes a forward link partial-balance power control algorithm, which can provide necessary Quality of Service (QoS) for multimedia traffics in Wideband CDMA(W-CDMA) systems. The ...... hiện toàn bộ
Primary subgraph method for linear active network analysis
Journal of Electronics (China) - Tập 4 - Trang 167-174 - 1987
This paper introduces the concept of the primary subgraph of a composite graph associated with a linear active network, and presents a new and efficient topological method, called the primary subgraph method, for linear active network analysis. This method is an improvement and unification of the complete tree method and directed tree method. It thoroughly solves the sign evaluation problem and ca...... hiện toàn bộ
Multiuser detection and diversity reception for asynchronous CDMA mobile communication
Journal of Electronics (China) - - 1999
In CDMA mobile communication systems, multiple access interference can be canceled by multiuser detection technique. The Degradation by channel fading can be reduced by diversity reception. This paper investigates a family of multiuser receivers that combined decorrelating detection, antenna diversity and RAKE multipath diversity. The performance of the multiuser receivers is analyzed. The results...... hiện toàn bộ
An adaptive moving target tracking algorithm for smart antenna systems
Journal of Electronics (China) - Tập 25 Số 1 - Trang 134-139 - 2008
In wireless communication environment, the time-varying channel and angular spreads caused by multipath fading and the mobility of Mobile Stations (MS) degrade the performance of the conventional Direction-Of-Arrival (DOA) tracking algorithms. On the other hand, although the DOA estimation methods based on the Maximum Likelihood (ML) principle have higher resolution than the beamforming and the su...... hiện toàn bộ
Rebuilding the sea wave height spectrum by using microwave scattering characteristics
Journal of Electronics (China) - Tập 7 - Trang 232-240 - 1990
The microwave back-scattering characteristics are numerically analysed by the electromagnetic scattering theory, and the sea wave height spectrum that reflects the wind field is rebuilt by comparing the calculated data with experimental data which were measured by airborne scatter. According to the wave height spectrum, the relationship between the back-scattering coefficients and wind speeds can ...... hiện toàn bộ
An image segmentation approach based on fuzzy-neural-network hybrid system
Journal of Electronics (China) - Tập 14 - Trang 352-356 - 1997
This paper presents a new solution to the image segmentation problem, which is based on fuzzy-neural-network hybrid system (FNNHS). This approach can use the experiential knowledge and the ability of neural networks which learn knowledge from the examples, to obtain the well performed fuzzy rules. Furthermore this fuzzy inference system is completed by neural network structure which can work in pa...... hiện toàn bộ
An analysis on Fu’s work of realizing Maxwell’s demon
Journal of Electronics (China) - Tập 3 - Trang 310-314 - 1986
In 1982, Fu presented his work on realizing Maxwell’s demon. Fu declared that a perpetual current was obtained in his device. This means that a new machine of the second kind of perpetual motion has been invented. In this paper, the author gives a detail analysis on Fu’s work, and the following conclusion has been obtained: (1) In Fu’s experiment, the object centrolled by the magnetic field was el...... hiện toàn bộ
LLR-aware smart link-adaptive strategy for decode-and-forward cooperative communication
Journal of Electronics (China) - Tập 30 - Trang 175-182 - 2013
Error propagation seriously degenerate the diversity order of Decode-and-Forward (DF) cooperative communication. To address this problem, a novel Log Likelihood Ratio (LLR)-based Link Adaptive Relaying (LAR) is proposed to promote adaption accuracy at relay. The instantaneous Bit Error Probability (BEP) is calculated according to the LLR of the received signals firstly, then based on it, the equiv...... hiện toàn bộ
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