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北京大学 [107]

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期刊论文 [64]

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浏览/检索结果: 共107条，第1-10条

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限定条件	专题：北京大学第一署名单位第一作者单位通讯作者单位

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	Investigating the Impact of Human Activity on Land Use/Cover Change in China's Lijiang River Basin from the Perspective of Flow and Type of Population 期刊论文 SUSTAINABILITY, 2017 Li, Jun; Zhang, Yuan; Qin, Qiming; Yan, Yueguan 收藏 \| 浏览/下载：7/0 \| 提交时间：2017/12/03 human activity land use/cover change impact analysis trajectory data analysis CLASSIFICATION ENVIRONMENTS DISTURBANCE PATTERNS MEXICO
	Reducing Image Compression Artifacts by Structural Sparse Representation and Quantization Constraint Prior 期刊论文 IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS FOR VIDEO TECHNOLOGY, 2017 Zhao, Chen; Zhang, Jian; Ma, Siwei; Fan, Xiaopeng; Zhang, Yongbing; Gao, Wen 收藏 \| 浏览/下载：9/0 \| 提交时间：2017/12/03 Blocking artifact reduction image deblocking optimization quantization constraint (QC) sparse representation TRANSFORM-DOMAIN BLOCKING ARTIFACTS JPEG DECOMPRESSION CODING ARTIFACTS DEBLOCKING REDUCTION RESTORATION SIMILARITY STANDARD DCT
	Nonlocal Gradient Sparsity Regularization for Image Restoration 期刊论文 IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS FOR VIDEO TECHNOLOGY, 2017 Liu, Hangfan; Xiong, Ruiqin; Zhang, Xinfeng; Zhang, Yongbing; Ma, Siwei; Gao, Wen 收藏 \| 浏览/下载：8/0 \| 提交时间：2017/12/03 Content-adaptive modeling gradient sparsity image restoration nonlocal (NL) similarity total variation (TV) regularization TOTAL VARIATION MINIMIZATION ADAPTIVE TOTAL VARIATION ARTIFACT REDUCTION TRANSFORM-DOMAIN NOISE REMOVAL RECONSTRUCTION ALGORITHM RECOVERY SUPERRESOLUTION DECONVOLUTION
	Phase Noise Estimation and Suppression for PDM CO-OFDM/OQAM Systems 期刊论文 JOURNAL OF LIGHTWAVE TECHNOLOGY, 2017 Fang, Xi; Zhang, Fan 收藏 \| 浏览/下载：34/0 \| 提交时间：2017/12/03 Coherent communication laser phase noise optical communication orthogonal frequency-division multiplexing/offset quadrature amplitude modulation (OFDM/OQAM) phase noise estimation COHERENT OPTICAL OFDM CHANNEL ESTIMATION SINGLE PHOTODIODE TRANSMISSION OFFSET SSMF SUPERCHANNEL TOLERANCE FIBER COMPENSATION
	DCT Regularized Extreme Visual Recovery 期刊论文 IEEE TRANSACTIONS ON IMAGE PROCESSING, 2017 Wang, Yunhe; Xu, Chang; You, Shan; Xu, Chao; Tao, Dacheng 收藏 \| 浏览/下载：4/0 \| 提交时间：2017/12/03 Discrete cosine transform visual recovery DCT regularizer Low-rank minimization DISCRETE COSINE TRANSFORM MATRIX COMPLETION LOW-RANK CONSTRAINED OPTIMIZATION IMAGE MINIMIZATION NORM RESTORATION ALGORITHMS DOMAIN
	An Iterative Frequency Offset Estimation Method for Coherent Optical OFDM System 期刊论文 IEEE PHOTONICS TECHNOLOGY LETTERS, 2017 Zhu, Paikun; Li, Juhao; Zhao, Hui; Tian, Yu; Chen, Yuanxiang; Wu, Zhongying; Chen, Zhangyuan; He, Yongqi 收藏 \| 浏览/下载：35/0 \| 提交时间：2017/12/03 Coherent optical communications orthogonal frequency division multiplexing (OFDM) frequency offset estimation SYNCHRONIZATION NETWORKS
	A Novel Forwarding Method for Full-Duplex Two-Way Relay Networks 期刊论文 CHINA COMMUNICATIONS, 2017 Han, Shuangshuang; Cheng, Xiang; Yang, Liuqing 收藏 \| 浏览/下载：4/0 \| 提交时间：2017/12/03 estimate-and-forward full-duplex two-way relay wireless communications CHANNEL ESTIMATION TRAINING DESIGN DIVERSITY
	117 Gbits/s Quantum Random Number Generation With Simple Structure 期刊论文 IEEE PHOTONICS TECHNOLOGY LETTERS, 2017 Liu, Jinlu; Yang, Jie; Li, Zhengyu; Su, Qi; Huang, Wei; Xu, Bingjie; Guo, Hong 收藏 \| 浏览/下载：2/0 \| 提交时间：2017/12/03 Quantum random number generation quantum phase fluctuation NOISE
	Derivation, Validation, and Sensitivity Analysis of Terrestrial Laser Scanning-Based Leaf Area Index 期刊论文 CANADIAN JOURNAL OF REMOTE SENSING, 2016 Li, Yumei; Guo, Qinghua; Tao, Shengli; Zheng, Guang; Zhao, Kaiguang; Xue, Baolin; Su, Yanjun 收藏 \| 浏览/下载：5/0 \| 提交时间：2017/12/03 GROUND-BASED LIDAR BOREAL FOREST GAP FRACTION VOXEL SIZE LAI AIRBORNE REGISTRATION INSTRUMENTS ECOSYSTEMS DENSITY
	ANOMALY IDENTIFICATION FROM SUPER-LOW FREQUENCY ELECTROMAGNETIC DATA FOR THE COALBED METHANE DETECTION 其他 2016-01-01 Zhao, S. S.; Wang, N.; Hui, J.; Ye, X.; Qin, Q. 收藏 \| 浏览/下载：5/0 \| 提交时间：2017/12/03 Electromagnetic Super Low Frequency Coalbed Methane non-Gaussian Class B model Least Square Gradient Adaptive filter INTERFERENCE MODELS

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