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A compensation-based user scheduling (CBUS) for multiuser multi-input multi-output (MU-MIMO) systems with delayed feedback channel state information (CSI) is proposed. To cope with the great performance degradation caused by imperfect CSI in the selective transmission/ selective combining (ST/SC) transceiving systems, we propose the CBUS algorithm, which can effectively alleviate the effect of time...
Spike detectors are important data-compression components for state-of-the-art implantable neural recording microsystems. This paper proposes two improved spike detection algorithms, frequency-enhanced nonlinear energy operator (fNEO) and energy-of-derivative (ED), to solve the sensitivity reduction of a conventional nonlinear energy operator (NEO) in the presence of baseline interference. The proposed...
A novel blind source separation (BSS) method of Frequency-Hopping (FH) signals based on time frequency ratio is proposed in this paper. The Short Time Fourier Transform (STFT) of each observation is computed firstly. Then the TF Ratios information of the mixed signals is used to localize the single source zone. Finally, we can obtain an estimation of the separating matrix and output signals. Comparing...
Cockpit voice recorder (CVR) in aircraft black box records many cockpit voices, such as speaker voices, noises and background sounds with special meanings. Cockpit voices' complexity exacerbates analysis difficulty through traditional differentiating and hearing methods, so that fresh cockpit voices are not captured easily from non-stationary sounds. In this paper, by analyzing firstly thoroughly...
This paper presents a novel Position Code Parallel Combinatory Spread Spectrum (PC/PC/SS) communication system. PC/PC/SS system can be designed to have higher data transmission capability, even several times compared to ordinary PC/SS system on Gaussian channel. In the ordinary PC/SS system, multip1e pseudo-noise (PN) sequences are simultaneously transmitted out of a pre-assigned spreading sequence...
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