机构

• 金属研究所 [2]
• 长春光学精密机械与物... [1]
• 中国科学院大学 [1]

采集方式

• OAI收割 [3]
• iSwitch采集 [1]

内容类型

• 期刊论文 [3]
• 会议论文 [1]

发表日期

• 2012 [3]
• 2010 [1]

学科主题

筛选

浏览/检索结果: 共4条，第1-4条 帮助 条数/页： 5101520253035404550556065707580859095100 排序方式： 请选择题名升序题名降序提交时间升序提交时间降序作者升序作者降序发表日期升序发表日期降序 Physical layer design for free space optical communication (EI CONFERENCE) 会议论文  OAI收割 2012 International Conference on Control Engineering and Communication Technology, ICCECT 2012, December 7, 2012 - December 9, 2012, Shenyang, Liaoning, China 作者:  Wang H.;  Zhang Q.;  Guo J.;  Guo J.;  Wang H. 收藏  |  浏览/下载：29/0  |  提交时间：2013/03/25 A small size Free Space Optical Communication System is introduced  including the hardware and the hardware specified physical layer protocol. In detail  the rapid synchronization method to reduce the handshake bandwidth requirement is demonstrated. The hardware of the system includes the laser driver system  the signal amplifying and shaping system  the data interface system. The hardware specified physical layer protocol is used to interface the outer data  serialize and deserialize the data stream  check transmission errors and schedule the data transmission. The overall system is a FIFO-like system and the user can use it as if he's operating a FIFO. The system is designed mainly for terrestrial FSO link whose signal channel is the atmosphere. Due to the complex composition and activity of the atmosphere  this signal channel brings in great influence on the transmitting laser in it  for example  the absorption and scattering of the atmosphere molecules and aerosols  the scintillation of received laser power caused by the turbulence of the atmosphere  all of which results in a much higher Bit Error Rate (BER) of the communication system than wired communication systems leading to frequent resynchronization. In our system  the sampling clock is generated locally using multi-phase sampling technique rather than PLLbased clock recovery  which helps to rapid synchronization. 2012 IEEE.   A prospective study to evaluate the efficacy of an intracardiac electrogram-based atrioventricular and interventricular intervals optimization method in cardiac resynchronization therapy 期刊论文  OAI收割 CHINESE MEDICAL JOURNAL, 2012, 卷号: 125, 期号: 3, 页码: 428-433 作者:  Hua Wei;  Wang Dongmei;  Cai Lin;  Sun Chaofeng;  Fu Guosheng   |  收藏  |  浏览/下载：15/0  |  提交时间：2021/02/02 SEVERE HEART-FAILURE  DELAY OPTIMIZATION  CONDUCTION DELAY  VV-DELAY  ECHO  ECHOCARDIOGRAPHY  TRIAL  heart failure  cardiac resynchronization therapy  atrioventricular interval  interventricular interval  timing cycle optimization  echocardiography  aortic velocity time integral  intracardiac electrogram  QuickOpt (TM)   A prospective study to evaluate the efficacy of an intracardiac electrogram-based atrioventricular and interventricular intervals optimization method in cardiac resynchronization therapy 期刊论文  OAI收割 CHINESE MEDICAL JOURNAL, 2012, 卷号: 125, 期号: 3, 页码: 428-433 作者:  Hua Wei;  Wang Dongmei;  Cai Lin;  Sun Chaofeng;  Fu Guosheng   |  收藏  |  浏览/下载：12/0  |  提交时间：2021/02/02 SEVERE HEART-FAILURE  DELAY OPTIMIZATION  CONDUCTION DELAY  VV-DELAY  ECHO  ECHOCARDIOGRAPHY  TRIAL  heart failure  cardiac resynchronization therapy  atrioventricular interval  interventricular interval  timing cycle optimization  echocardiography  aortic velocity time integral  intracardiac electrogram  QuickOpt (TM)   Error-resilient h.264/avc video transmission using two-way decodable variable length data block 期刊论文  iSwitch采集 Ieee transactions on circuits and systems for video technology, 2010, 卷号: 20, 期号: 3, 页码: 340-350 作者:  Gao, Shaoshuai;  Ma, Kai-Kuang 收藏  |  浏览/下载：42/0  |  提交时间：2019/05/10 Bidirectional decoding  Error concealment  Error-resilient video coding  H.264/avc  Resynchronization  Reversible variable length coding  Two-way decoding  Wireless video transmission