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6th International Conference on Bio-Inspired computing: Theories and Applications, BIC-TA 2011

作者： Zeng, Xiangxiang Song, Tao Pan, Linqiang Zhang, Xingyi Key Laboratory on Image Processing and Intelligent Control Department of Control Science and Engineering Huazhong University of Science and Technology Wuhan 430074 China Key Lab of Intelligent Computing and Signal Processing School of Computer Science and Technology Anhui University Hefei 230039 China

ISBN: (纸本)9780769545141

Recently, Gutiérrez-Naranjo and Leporati considered performing basic arithmetic operations on a new class of bioinspired computing devices - spiking neural P systems (for short, SN P systems). However, the binary encoding mechanism used in their research looks like the encoding approach in electronic circuits, instead of the style of spiking neurons (in usual SN P systems, information are encoded as the time interval between spikes). In this work, three SN P systems are constructed as adder, subtracter and multiplier, respectively. In these devices, a number is inputted to the system as the interval of time elapsed between two spikes received by input neuron, the result of a computation is the time between the moments when the output neuron spikes. © 2011 IEEE.

关键词： Encoding (symbols)

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Bernstein Bezout matrix with applications to polynomial stability 32

Bernstein Bezout matrix with applications to polynomial stab...

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32nd Youth Academic Annual Conference of Chinese Association of Automation, YAC 2017

作者： Huazhang, Wu Jiajia, Ding Tingting, Zheng Key Laboratory of Intelligent Computing and Signal Processing Ministry of Education Anhui University Hefei230039 China School of Mathematical Sciences Anhui University Hefei230601 China

ISBN: (纸本)9781538629017

The Bernstein Bezoutian with respect to the Bernstein polynomials basis is investigated. A general linear control system under the Bernstein polynomials basis is established from the classical one, and a kind of generalized controllability/observability matrices are constructed. Connections between Bernstein Bezoutian and generalized controllability/observability matrices are discussed. Some results for polynomial stability in terms of the Bernstein Bezoutian are obtained, which generalize the corresponding classical Fujiwara-Hermite and Routh-Hurwitz criteria. © 2017 IEEE.

关键词： Linear control systems

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Adaptive Step-Size Sparse Millimeter Wave Imaging Algorithm Based on Approximate Observations 11

Adaptive Step-Size Sparse Millimeter Wave Imaging Algorithm ...

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11th IEEE International Conference on Computer Science and Network Technology, ICCSNT 2023

作者： Wang, Dianhao Huang, Xinqi Yu, Canping Mao, Qi Li, Yingsong College of Information and Communication Engineering Harbin Engineering University Harbin150001 China Anhui University Key Laboratory of Intelligent Computing and Signal Processing Ministry of Education China

ISBN: (纸本)9798350311594

The currently constructed millimeter wave imaging system has the problems of long sampling time and more sampling points of antenna units, and the use of compressed perception algorithm can improve the imaging quality when the number of sampling points are much smaller than the Nyquist distance sampling. The traditional compressed perception algorithm can achieve better sparse recovery than the matched filter imaging algorithm, but there is a large dimension of the measurement matrix and high computational complexity. For the problems of difficult data processing and large dimensions of measurement matrix, a sparse imaging regularization model is constructed based on approximate observation, and an improved soft threshold iterative algorithm is used with adaptive step size, which improves the convergence performance, reduces the computational complexity of the sparse recovery dramatically and achieves a better quality of sparse imaging than the traditional compressed perception algorithm. © 2023 IEEE.

关键词： Computational complexity

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Application of AWE technology combined with higher-order basis functions to broad band electromagnetic scattering problems

Application of AWE technology combined with higher-order bas...

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2012 International Conference on Microwave and Millimeter Wave Technology, ICMMT 2012

作者： Ma, Tao Chen, Ming-Sheng Wu, Xian-Liang Qi, Qi Liu, Yi Hao, Ming-Ming Key Laboratory of Intelligent Computing and Signal Processing Anhui University Hefei 230039 China Department of Physics and Electronic Engineering Hefei Normal University Hefei 230061 China

ISBN: (纸本)9781467321839

In this paper, the asymptotic waveform evaluation (AWE) technique in conjugation with higher-order basis functions method based on the best uniform approximation theory is applied to solve scattering problems over a broad frequency band. To select the best uniform approximation higher-order basis functions, 3-order Chebyshev basis function is used as an example and applied to solving the electrical field integral equation (EFIE) by the method of moments(MOM). Finally, using AWE technique to solving the discrete linear system obtained by high order basis function to accomplish the scattering analysis of perfectly electrical conductor (PEC) over a broad frequency band. It is shown that the presented method has higher computational precision with lower discretization, and greatly improve the computational efficiency. © 2012 IEEE.

关键词： Radar cross section

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Affine-Projection Maximum Asymmetric Correntropy Criterion Algorithm Under System Identifications 11

Affine-Projection Maximum Asymmetric Correntropy Criterion A...

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11th IEEE International Conference on Computer Science and Network Technology, ICCSNT 2023

作者： Peng, Yan Huang, Xinqi Yu, Canping Mao, Qi Li, Yingsong College of Information and Communication Engineering Harbin Engineering University Harbin150001 China Anhui University Key Laboratory of Intelligent Computing and Signal Processing Ministry of Education China

ISBN: (纸本)9798350311594

The Affine-Projection Maximum Asymmetric Correntropy Criterion (APMACC) is constructed, drawing upon the fundamental principles of the maximum asymmetric correntropy criterion and an affine-projection scheme. The APMACC algorithm incorporates the asymmetric Gaussian model as a kernel function within the Affine-Projection (AP) algorithm framework, thereby endowing it with robustness against asymmetrically distributed noise. Furthermore, the bound for step-size is established in the literature. Simulation results demonstrate that the APMACC has fast convergence and low steady-state. © 2023 IEEE.

关键词： Adaptive filtering

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FDTD method using in one dimension quantum mechanics problem

FDTD method using in one dimension quantum mechanics problem

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2012 International Conference on Microwave and Millimeter Wave Technology, ICMMT 2012

作者： Sun, Bingbing Huang, Zhixiang Wu, Xianliang Lu, Silong Wang, Hui Key Laboratory of Intelligent Computing and Signal Processing Anhui University Hefei 230039 China Department of Physics and Electronic Engineering Hefei Normal University Hefei 230061 China

A new FDTD approach which solves time dependent schrödinger equation is presented. The formulation and the stability analysis of the method are also included. A numerical example is illustrated as well to verify ... 详细信息

ISBN: (纸本)9781467321839

关键词： Quantum theory

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Block wavelet transforms of image reconstruction using compressed sampling

Block wavelet transforms of image reconstruction using compr...

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International Congress on Image and signal processing

作者： Zhang, Liang Wu, Xian-Liang Key Laboratory of Intelligent Computing and Signal Processing Anhui University Hefei 230039 China Department of Physics and Electronic Engineering Hefei Teachers College Hefei 230061 China

ISBN: (纸本)9781424465149

This paper describes the compressed sampling using the block wavelet transform which has more flexibility in reconstruction the images. Compressed sampling is considered for signals and images that are sparse in a wavelet basis. We propose a process of the image by sampling the data far below Nyquist rate in terms of compressed sampling, which shows that image data can be reconstructed from an extremely small set of measurements than what is generally considered necessary. A novel wavelet based interframe compression scheme has been developed and put into practice. It is based on a unique block wavelet transform that we have developed. BWT based interframe compression is very efficient in both compression and speed performance. The compression performance of our image codec hold a slightly lower PSNR value produces a more visually pleasing result. This implementation also preserves the scalability of the wavelet embedded coding technique. ©2010 IEEE.

关键词： Wavelet transforms

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Robust Spatial Filters on Three-Class Motor Imagery EEG Data Using Independent Component Analysis

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Journal of Biosciences and Medicines 2014年第2期2卷 43-49页

作者： Bangyan Zhou Xiaopei Wu Lei Zhang Zhao Lv Xiaojing Guo The Key Laboratory of Intelligent Computing & Signal Processing Ministry of Education Anhui University Hefei China

Independent Component Analysis (ICA) was often used to separate movement related independent components (MRICs) from Electroencephalogram (EEG) data.?However, to obtain robust spatial filters, complex characteristic features, which were manually selected in most cases, have been commonly used. This study proposed a new simple algorithm to extract MRICs automatically, which just utilized the spatial distribution pattern of ICs. The main goal of this study was to show the relationship between spatial filters performance and designing samples. The EEG data which contain?mixed brain states (preparing, motor imagery and rest) were used to design spatial filters. Meanwhile, the single class data was also used to calculate spatial filters to assess whether the MRICs extracted on different class motor imagery spatial filters are similar. Furthermore, the spatial filters constructed on one subject’s EEG data were applied to extract the others’ MRICs. Finally, the different spatial filters were then applied to single-trial EEG to extract MRICs, and Support Vector Machine (SVM) classifiers were used to discriminate left hand、right-hand and foot imagery movements of BCI Competition IV Dataset 2a, which recorded four motor imagery data of nine subjects. The results suggested that any segment of finite motor imagery EEG samples could be used to design ICA spatial filters, and the extracted MRICs are consistent if the position of electrodes are the same, which confirmed the robustness and practicality of ICA used in the motor imagery Brain Computer Interfaces (MI-BCI) systems.

关键词： ICA Spatial Filter Motor Imagery BCI SVM

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A RIS-Assisted Multiuser MIMO Communication Method Based on Deep Reinforcement Learning 7

A RIS-Assisted Multiuser MIMO Communication Method Based on ...

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7th International Conference on Communication and Information Systems, ICCIS 2023

作者： Tian, Changlin Zhi, Hui Tie, Kui Anhui University School of Electronic and Information Engineering Key Laboratory of Intelligent Computing and Signal Processing of Ministry of Education Hefei China CO. Ltd Bengbu China

ISBN: (纸本)9798350330540

In this paper, a RIS-assisted multiuser MIMO communication method based on deep reinforcement learning (RMMC-DRL) is proposed for multiuser scenarios. Our objective is to find the optimal transmit beamforming matrix of BS and optimal phase shift matrix of reflective intelligent surface (RIS) to maximize the sum rate of multiuser, this problem is reduced into a constrained optimization problem. It is a non-convex optimization problem, so we solve it through deep reinforcement learning (DRL) and then use the results for communication. In the DRL, a deep deterministic policy gradient (DDPG) framework that can handle continuous states and actions is designed, reward is set as optimization goal, and the transmit beamforming matrix and the phase shift matrix of RIS are obtained through the interaction with environment. Unlike the alternating optimization (AO) method, which solve the transmit beamforming matrix and the RIS phase shift matrix alternatively, the RMMC-DRL can obtain both transmit beamforming matrix and RIS phase shift matrix simultaneously as the output of DRL. Simulation results show that RMMC-DRL can learn and improve its behavior by interacting with the environment. Compared with AO method, RMMC-DRL can obtain higher sum rate and lower computational complexity. © 2023 IEEE.

关键词： beamforming matrix deep reinforcement learning phase shift matrix reconfigurable intelligent surface

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A novel position-shift method of double-phase fresnel hologram for synthesizing a complex fresnel hologram 2nd

A novel position-shift method of double-phase fresnel hologr...

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2nd International Conference on Sensor Networks and signal processing, SNSP 2019

作者： Shen, Chuan Zhu, QinQin Hong, QingQing Zhang, Cheng Wei, Sui Key Laboratory of Intelligent Computing and Signal Processing Ministry of Education Anhui University Hefei230601 China Key Laboratory of Modern Imaging and Display Technology of Anhui Province Anhui University Hefei230601 China

ISBN: (纸本)9789811549168

An ideal desired spatial light modulator that is capable of complex amplitude modulation will be one of the ultimate tools for holographic display. In this paper, an analytical method to overlap double-phase Fresnel holograms displayed on the phase-only spatial light modulators for synthesizing a complex Fresnel hologram is proposed. Two $$4f$$ configurations with the phase-only spatial light modulator inserted in the Fourier plane are employed. Different programmable blazed phase gratings can be easily implemented by encoding their phase functions onto the spatial light modulators. We theoretically analyze the implementation of the proposed system based on Fourier optics. The effects introduced by the discrete pixelated nature of the spatial light modulator are assessed. A $$4f$$ configuration of holographic display system based on two liquid crystals on silicons is designed to indicate the free position-shift of the hologram. Optical reconstructions yield satisfactory results. © Springer Nature Singapore Pte Ltd 2021.

关键词： Holographic displays

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