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浏览/检索结果: 共5条，第1-5条 帮助 限定条件 内容类型：会议论文     已选(0)清除 条数/页：5101520253035404550556065707580859095100   排序方式：请选择作者升序作者降序题名升序题名降序发表日期升序发表日期降序提交时间升序提交时间降序 High frequency electric stimulation of retinal neurons elicits physiological signaling patterns 会议论文 Fried, Shelley I.; Cai, Changsi; Ren, Qiushi 收藏  |  浏览/下载：7/0  |  提交时间：2015/11/17 A Research on Different Channel Modem in TWSTFT 会议论文 6th International Conference on Wireless Communications, Networking and Mobile Computing (WICOM), Chengdu, PEOPLES R CHINA, SEP 23-25, 2010 Zhang Hong; Li Huanxin 收藏  |  浏览/下载：10/0  |  提交时间：2012/11/01 Embedded system of time uniform based on DSP (EI CONFERENCE) 会议论文 2010 International Conference on Computer, Mechatronics, Control and Electronic Engineering, CMCE 2010, August 24, 2010 - August 26, 2010, Changchun, China Li N.; Guo L.-H.; Chen J.; Liu C.-X. 收藏  |  浏览/下载：17/0  |  提交时间：2013/03/25 We introduced a design method of DSP-based System of time uniform  which combine the GPS and the Compass to calibrate the time. The system can use UTC (Coordinated Universal Time) of the GPS or the Compass for time base  to generate absolute time and different frequency of synchronous signals. We used DSP (Digital Signal Processor) to calculate the satellite information which includes the UTC time. After getting the UCT time information  put it into the CPLD (Complex Programmable Logic Device) for correction of time delay and serialization to output. Meanwhile  we divided 1PPS (one-pulse-per-second) signal of the GPS and the Compass into 20Hz  50Hz  and 800Hz synchronous signal. And we analyzed the precision of time and frequency. To conclude  the uncertainty of system absolute time is less than 100ns  the uncertainty of system synchronous signals is less than 20ns. This system is easy and flexible for use  stable and reliable in performance. 2010 IEEE.   Design and implementation of IRIG-B Code Time System Using CPLD Technique Based on PCI Bus 会议论文 IEEE International Frequency Control Symposium, Honolulu, HI, MAY 19-21, 2008 Ma, Hong-Jiao; Hu, Yong-Hui; Wu, Fu-Ping; Yuan, Hai-Bo; Li, Jian-Xun 收藏  |  浏览/下载：10/0  |  提交时间：2012/11/01 A comparotive study of GPS P3 and GPS L3 会议论文 IEEE International Frequency Control Symposium and Exposition, Vancouver, CANADA, AUG 29-31, 2005 Li, Gun; Li, Bian; Dong, Shao-Wu 收藏  |  浏览/下载：4/0  |  提交时间：2012/11/01