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Body area communication based on quasi-electrostatic field and spread spectrum
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作者 解禹 黄忠华 崔占忠 《Journal of Beijing Institute of Technology》 EI CAS 2011年第1期14-17,共4页
Based on the electrical model of body area communication, the change tendency of chan nel gain in 100 kHz 10 MHz band was experimentally analyzed and verified. Results show that chan nel gain was flat and signal a... Based on the electrical model of body area communication, the change tendency of chan nel gain in 100 kHz 10 MHz band was experimentally analyzed and verified. Results show that chan nel gain was flat and signal attenuation was approximately 43 dB in 1 MHz 10 MHz band. The char acteristics of the channel were taken into account in the design of body area spread spectrum com munication and its multiuser receiver issue. BER Eb/No curves of single user and multiuser were de rived by simulation. The characteristics of body area commutation channel were studied and the fea sibility of introducing spread spectrum theory to body area communication was verified. 展开更多
关键词 spread spectrum technology quasi electrostatic field body area communication
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A Lesson From The Qvod Case
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作者 Zhang Zhiping 《Beijing Review》 2016年第7期48-48,共1页
Four executives of Chinese video-sharing site Qvod Technology Co.Ltd.stood trial at the Haidian District People’s Court in Beijing on January 7-8 on charges of profiting from spreading pornographic content online.
关键词 broadcast charges District spreading entitled dissemination users sharing technological proceedings
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