Search

Your search keyword '"Sun, Gaofei"' showing total 330 results
Start Over Author "Sun, Gaofei"
330 results on '"Sun, Gaofei"'

17. Light Intensity Based IoT Device Positioning for Indoor Monitoring

Author

Sun, Gaofei, Xing, Xiaoshuang, Qian, Zhenjiang, Wang, Zhiguo, Zhu, Saide, Goos, Gerhard, Founding Editor, Hartmanis, Juris, Founding Editor, Bertino, Elisa, Editorial Board Member, Gao, Wen, Editorial Board Member, Steffen, Bernhard, Editorial Board Member, Woeginger, Gerhard, Editorial Board Member, Yung, Moti, Editorial Board Member, Wang, Guojun, editor, Chen, Bing, editor, Li, Wei, editor, Di Pietro, Roberto, editor, Yan, Xuefeng, editor, and Han, Hao, editor

Published
2021
Full Text
View/download PDF

19. A Compensation Method for Full-Field-of-View Energy Nonuniformity in Dark-and-Weak-Target Simulators.

Author

Quan, Fenghuan, Liu, Shi, Sun, Gaofei, Zhang, Jian, Zhang, Yu, Zhao, Bin, and Zhang, Jierui

Subjects
GRAYSCALE model, LIGHT sources, LIGHT propagation, IMAGE sensors, ENERGY transfer
Abstract

Dark-and-weak-target simulators are used as ground-based calibration devices to test and calibrate the performance metrics of star sensors. However, these simulators are affected by full-field-of-view energy nonuniformity. This problem impacts the quality of output images and the calibration accuracy of sensors and inhibits further improvements in navigational accuracy. In the study reported in this paper, we sought to analyze the factors which affect full-field-of-view energy uniformity in dark-and-weak-target simulators. These include uneven irradiation in backlight sources, the leakage of light from LCD display panels, and the vignetting of collimating optical systems. We then established an energy transfer model of a dark-and-weak-target simulator based on the propagation of a point light source and proposed a self-adaptive compensation algorithm based on pixel-by-pixel fitting. This algorithm used a sensor to capture the output image of a dark-and-weak-target simulator and iteratively calculated the response error matrix of the simulator. Finally, we validated the feasibility and effectiveness of the compensation algorithm by acquiring images using a self-built test system. The results showed that, after compensating an output image of the dark-and-weak-target simulator, the grayscale standard display function (SDF) of the acquired sensor image was reduced by about 50% overall, so the acquisition image was more accurately compensated, and the desired level of grayscale distribution was obtained. This study provides a reference for improving the quality of output images from dark-and-weak-target simulators, so that the working environments of star sensors may be more realistically simulated, and their detection performance improved. [ABSTRACT FROM AUTHOR]

Published
2024
Full Text
View/download PDF

25. Cluster-Based Basic Safety Message Dissemination in VANETs

Author

Chen, Lin, Xing, Xiaoshuang, Sun, Gaofei, Xu, Jiang, Zhang, Jie, Goos, Gerhard, Founding Editor, Hartmanis, Juris, Founding Editor, Bertino, Elisa, Editorial Board Member, Gao, Wen, Editorial Board Member, Steffen, Bernhard, Editorial Board Member, Woeginger, Gerhard, Editorial Board Member, Yung, Moti, Editorial Board Member, Yu, Dongxiao, editor, Dressler, Falko, editor, and Yu, Jiguo, editor

Published
2020
Full Text
View/download PDF

26. Virtual Location Generation for Location Privacy Protection in VANET

Author

Li, Zhihong, Xing, Xiaoshuang, Sun, Gaofei, Qian, Zhenjiang, Qian, Jin, Goos, Gerhard, Founding Editor, Hartmanis, Juris, Founding Editor, Bertino, Elisa, Editorial Board Member, Gao, Wen, Editorial Board Member, Steffen, Bernhard, Editorial Board Member, Woeginger, Gerhard, Editorial Board Member, Yung, Moti, Editorial Board Member, Yu, Dongxiao, editor, Dressler, Falko, editor, and Yu, Jiguo, editor

Published
2020
Full Text
View/download PDF

30. Cooperative BSM Dissemination in DSRC/WAVE Based Vehicular Networks

Author

Chen, Lin, Xing, Xiaoshuang, Sun, Gaofei, Qian, Jin, Guan, Xin, Hutchison, David, Editorial Board Member, Kanade, Takeo, Editorial Board Member, Kittler, Josef, Editorial Board Member, Kleinberg, Jon M., Editorial Board Member, Mattern, Friedemann, Editorial Board Member, Mitchell, John C., Editorial Board Member, Naor, Moni, Editorial Board Member, Pandu Rangan, C., Editorial Board Member, Steffen, Bernhard, Editorial Board Member, Terzopoulos, Demetri, Editorial Board Member, Tygar, Doug, Editorial Board Member, Goos, Gerhard, Founding Editor, Hartmanis, Juris, Founding Editor, Biagioni, Edoardo S., editor, Zheng, Yao, editor, and Cheng, Siyao, editor

Published
2019
Full Text
View/download PDF

40. Data Uploading Mechanism for Internet of Things with Energy Harvesting

Author

Sun, Gaofei, Xing, Xiaoshuang, Qin, Xiangping, Hutchison, David, Series Editor, Kanade, Takeo, Series Editor, Kittler, Josef, Series Editor, Kleinberg, Jon M., Series Editor, Mattern, Friedemann, Series Editor, Mitchell, John C., Series Editor, Naor, Moni, Series Editor, Pandu Rangan, C., Series Editor, Steffen, Bernhard, Series Editor, Terzopoulos, Demetri, Series Editor, Tygar, Doug, Series Editor, Weikum, Gerhard, Series Editor, Chellappan, Sriram, editor, Cheng, Wei, editor, and Li, Wei, editor

Published
2018
Full Text
View/download PDF

47. Genomic loci associated with leaf abscission contribute to machine picking and environmental adaptability in upland cotton (Gossypium hirsutum L.)

Author

Li, Hongge, primary, Wang, Xiangru, additional, Qin, Ning, additional, Hu, Daowu, additional, Jia, Yinhua, additional, Sun, Gaofei, additional, He, Liangrong, additional, Zhang, Hengheng, additional, Dai, Panhong, additional, Peng, Zhen, additional, Pang, Nianchang, additional, Pan, Zhaoe, additional, Zhang, Xiaomeng, additional, Dong, Qiang, additional, Chen, Baojun, additional, Gui, Huiping, additional, Pang, Baoyin, additional, Zhang, Xiling, additional, He, Shoupu, additional, Song, Meizhen, additional, and Du, Xiongming, additional

Published
2023
Full Text
View/download PDF

48. Expression patterns and functional divergence of homologous genes accompanied by polyploidization in cotton (Gossypium hirsutumL.)

Author

Peng, Zhen, Cheng, Hua, Sun, Gaofei, Pan, Zhaoe, Wang, Xiao, Geng, Xiaoli, He, Shoupu, and Du, Xiongming

Abstract

Naturally allotetraploid cotton has been widely used as an ideal model to investigate gene expression remodeling as a consequence of polyploidization. However, the global gene pattern variation during early fiber development was unknown. In this study, through RNA-seq technology, we comprehensively investigated the expression patterns of homologous genes between allotetraploid cotton (G. hirsutum) and its diploid progenitors (G. arboreumand G. raimondii) at the fiber early development stage. In tetraploid cotton, genes showed expression level dominance (ELD) bias toward the A genome. This phenomenon was explained by the up-/downregulation of the homologs from the nondominant progenitor (D genome). Gene ontology (GO) enrichment results indicated that the ELD-A genes might be a prominent cause responsible for fiber property change through regulating the fatty acid biosynthesis/metabolism and microtubule procession, and the ELD-D genes might be involved in transcription regulation and stress inducement. In addition, the number and proportion of completely A- and D-subfunctionalized gene were similar at different fiber development stages. However, for neofunctionalization, the number and proportion of reactivated D-derived genes were greater than those of A at 3 and 5 DPA. Eventually, we found that some homologous genes belonging to several specific pathways might create novel asymmetric transcripts between two subgenomes during polyploidization and domestication process, further making the fiber property meet the human demands. Our study identified determinate pathways and their involved genes between allotetraploid cotton and their progenitors at early fiber development stages, providing new insights into the mechanism of cotton fiber evolution.

Published
2024
Full Text
View/download PDF

50. Resequencing of 243 diploid cotton accessions based on an updated A genome identifies the genetic basis of key agronomic traits

Author

Du, Xiongming, Huang, Gai, He, Shoupu, Yang, Zhaoen, Sun, Gaofei, Ma, Xiongfeng, Li, Nan, Zhang, Xueyan, Sun, Junling, Liu, Min, Jia, Yinhua, Pan, Zhaoe, Gong, Wenfang, Liu, Zhaohui, Zhu, Heqin, Ma, Lei, Liu, Fuyan, Yang, Daigang, Wang, Fan, Fan, Wei, Gong, Qian, Peng, Zhen, Wang, Liru, Wang, Xiaoyang, Xu, Shuangjiao, Shang, Haihong, Lu, Cairui, Zheng, Hongkun, Huang, Sanwen, Lin, Tao, Zhu, Yuxian, and Li, Fuguang

Published
2018
Full Text
View/download PDF

Catalog

Books, media, physical & digital resources
See catalog results