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COMBINING: 作品数：621被引量：1359H指数：15; 导出分析报告; 相关领域：自动化与计算机技术更多>>; 相关作者：张博储彩婷王婷婷金敏菲尹秋凤更多>>; 相关机构：同济大学中国科学技术大学电子科技大学哈尔滨工业大学更多>>; 相关期刊：更多>>; 相关基金：国家自然科学基金国家重点基础研究发展计划国家高技术研究发展计划中国博士后科学基金更多>>

Facial expression recognition combining attention mechanism and gradient coordination mechanism: 《The Journal of China Universities of Posts and Telecommunications》2024年第6期35-43,共9页Li Jian Yang Jun Li Pengwei; Facial expression recognition poses a formidable challenge due to the nuanced variations in facial expressions, which complicate the extraction of discriminative features. Furthermore, the imbalance in sample category...; 关键词：facial expression recognition attention mechanism gradient coordination mechanism deep effective network

TCL: a taxi trajectory prediction model combining time and space features被引量：2: 《The Journal of China Universities of Posts and Telecommunications》2021年第3期63-75,共13页Jiao Jichao Chen Xinping Guan Meng Zhao Yaxin; supported by the National Key Research and Development Program of China (2017YFB0503700);the Fundamental Research Funds for the Central Universities (2019PTB-010)。; Vehicle trajectory modeling is an important foundation for urban intelligent services. Trajectory prediction of cars is a hot topic. A model including convolutional neural network(CNN) and long short-term memory(LSTM)...; 关键词：global navigation satellite system(GNSS) trajectory data trajectory prediction spatilal features time features

New image encryption combining fractional DCT via polynomial interpolation with dependent scrambling and diffusion: 《The Journal of China Universities of Posts and Telecommunications》2015年第5期1-9,共9页Liang Yaru Wu Jianhua; supported by the National Natural Science Foundation of China(61262084,61462061);the Natural Science Foundation of Jiangxi Province(20122BAB201029); Based on the fractional discrete cosine transform(DCT) via polynomial interpolation(PI-Fr DCT) and the dependent scrambling and diffusion(DSD), an image encryption algorithm is proposed. Under certain conditions, the ...; 关键词：image encryption fractional discrete cosine transf

Combining SVM and CHMM classifiers for porno video recognition被引量：2: 《The Journal of China Universities of Posts and Telecommunications》2012年第3期100-106,共7页ZHAO Zhi-cheng; supported by the National Natural Science Foundation of China (90920001, 61101212);the Fundamental Research Funds for the Central Universities; Pomo video recognition is important for Intemet content monitoring. In this paper, a novel pomo video recognition method by fusing the audio and video cues is proposed. Firstly, global color and texture features and l...; 关键词：pomo video recognition SVM keyframe CHMM AUDIO

Particle filter based automatic frequency control scheme by combining the two-step structure被引量：1: 《The Journal of China Universities of Posts and Telecommunications》2012年第2期9-14,共6页CHEN Peng LI Ju-hu NIU Kai WU Wei-ling; supported by the National Basic Research Program of China (2009CB320401);the National Science and Technology Major Project of China (2012ZX03004005-002);the New Generation Broadband Wireless Mobile Communication Network of Major Special Projects (2010ZX03003-001);the Fundamental Research Funds for the Central Universities (2010PTB-03-04 G470220); In this paper a new automatic frequency control （AFC） scheme was proposed, which could be used for the receiver of low earth orbit （LEO） satellite communication system in continuous transmitting scenario. By emplo...; 关键词：satellite communication Doppler effect automatic frequency control particle filter

Deepen spectrum notch and reduce PAPR in OFDM systems via combining subcarriers precoding with tone reservation: 《The Journal of China Universities of Posts and Telecommunications》2011年第3期80-84,共5页ZHAO Cheng-lin LIU De-qiang SUN Xue-bin JIANG Ting; supported by the National Science & Technology Specific Major Projects (2009ZX03006-006,2009ZX03006-009);the National Natural Science Foundation of China (60432040, 60972079); In orthogonal frequency division multiplexing （OFDM） systems, spectrum notch can be generated to mitigate interference to other narrow-band services by turning off corresponding subcarriers. However, the inter-carri...; 关键词：OFDM spectrum notch PAPP subcarriers precoding tone reservation

Ergodic capacity of switch-and-examine combining under flat Rayleigh fading channels: 《The Journal of China Universities of Posts and Telecommunications》2009年第1期44-46,63,共4页ZHAO Shuang YAO Wen-bin YANG Hong-wen WANG Ya-feng; supported by the National Natural Science Foundation of China (60602060);the Hi-Tech Research and Development Program of China (2007AA01Z211).; Switch-and-examine combining （SEC） is an interesting diversity technique that is simpler than selection combining （SC）, whereas its performances is similar in terms of bit error rate （BER） and diversity order. A...; 关键词：ergodic capacity diversity technique SEC SC

Cross-layer combining of power control and adaptive modulation with truncated ARQ for cognitive radios被引量：1: 《The Journal of China Universities of Posts and Telecommunications》2008年第3期19-23,共5页CHENG Shi-lun YANG Zhen; the National Natural Science Foundation of China(60772062);the Key Projects for Science and Technology of MOE(206055);the Key Basic Research Projects for the Natural Science of Jiangsu Colleges(06KJA51001); To maximize throughput and to satisfy users＇ requirements in cognitive radios, a cross-layer optimization problem combining adaptive modulation and power control at the physical layer and truncated automatic repeat r...; 关键词：cognitive radio truncated ARQ power control adaptive modulation cross-layer design

Multiuser subcarriers and bit allocation combining adaptive mapping for SC-FDMA system: 《The Journal of China Universities of Posts and Telecommunications》2008年第3期41-46,共6页ZHANG Yu-mei XIN Yu YANG Da-cheng; the ZTE Research Foundation; In this article, a multiuser single carrier frequency division multiple access （SC-FDMA） system is considered, based on which an adaptive subcarrier and bit allocation algorithm is investigated. The algorithm has be...; 关键词：adaptive subcarrier and bit allocation SC-FDMA subcarrier mapping modes bit error ratio （BER）

Combining IFS and VQ in Fractal Image Coding被引量：5: 《The Journal of China Universities of Posts and Telecommunications》2000年第1期26-30,共5页HUANG Yi, SUN Hai-an (Information Engineering Department, Nanjing University of Posts and Telecommunications, Nanjing 210003, P.R.China); A novel paradigm for fractal coding selectively corrects the fractal code for selected domain blocks with an image-adaptive VQ codebook. The codebook is generated from the initial uncorrected fractal code and is, ther...; 关键词：fractal image coding vector quantization interacted function systems

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