Wentao Shi

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We have investigated human male demographic history using 590 males from 51 populations in the Human Genome Diversity Project - Centre d'Etude du Polymorphisme Humain worldwide panel, typed with 37 Y-chromosomal Single Nucleotide Polymorphisms and 65 Y-chromosomal Short Tandem Repeats and analyzed with the program Bayesian Analysis of Trees With Internal(More)
In this paper, we propose a robust sparse spectrum fitting method (RSpSF) for Directions-Of-Arrival (DOA) and power estimation in the presence of general form of modeling errors in the array manifold matrix. By exploiting the group sparsity between the power spectrum and the modeling errors, RSpSF formulates the estimator as a convex optimization program.(More)
The mammalian central nervous system (CNS) relies on a constant supply of external glucose for its undisturbed operation. This article presents an implantable Multi-Electrode Array (MEA) probe for brain glucose measurement. The MEA was implemented on Silicon-On-Insulator (SOI) wafer using Micro-Electro-Mechanical-Systems (MEMS) methods. There were 16(More)
—Maximum Likelihood estimator (ML) has shown excellent performance of Direction Of Arrival (DOA) estimation in Multiple Input Multiple Output (MIMO) array. However, the computation burden of MIMO ML is very large. In order to resolve this problem, a novel MIMO Maximum Likelihood DOA Estimation based on Metropolis-Hasting Sampling (MIMO MHML) is proposed,(More)
The single-carrier block transmission (SCBT) method has been considered for bandwidth efficiency in underwater acoustic (UWA) communication recently. The cyclic prefix (CP) in the SCBT method should be longer than the multipath spread, but a long CP reduces the data rate of SCBT UWA communications in significant multipath channels. The proposed scheme in(More)
The problem of direction of arrival (DOA) for multiple-input multiple-output (MIMO) array systems is considered, where orthogonal waveforms are transmitted simultaneously. A novel DOA estimation algorithm for collocated MIMO array is proposed. The proposed algorithm exploits the time delay to obtain two cross-correlation matrices, where the effect of(More)
—Beamspace Root-MUSIC (BM-RTMUSIC) algorithm cannot resolve coherent sources, and the use of spatial smoothing pre-process leads to array aperture loss and reduction in detectable source numbers, a new beamspace conjugate Root-MUSIC (BMC-RTMUSIC) algorithm is proposed to estimate the Direction-Of-Arrival (DOA) for non-circular signals. The proposed method(More)
In this paper, a novel method for direction arrival (DOA) estimation in monostatic multiple-input multiple output (MIMO) array is presented. By using the sparse signal reconstruction of monostatic MIMO array measurements with an overcomplete basis, the singular value decomposition (SVD) of the received data matrix can be penalties based on the(More)
Recently, single-carrier block transmission (SCBT) has been considered for phase-coherent underwater acoustic communication due to its reduced computational complexity and low peak-to-average power ratio. It offers a viable design alternative to the orthogonal frequency division multiplexing (OFDM) techniques. Spatial processing is considered for SCBT based(More)
Many neurological diseases are closely associated with demyelination caused by pathological changes of oligodendrocytes. Although intrinsic remyelination occurs after injury, the regeneration efficiency of myelinating oligodendrocytes remains to be improved. Herein, we reported an initiative finding of employing a valuable cell source, namely neural(More)