A new method to measure LF time code service signal based on virtual instrument
文献类型：会议论文
| 作者 | Feng, Ping ; Wu, Guichen ; Liu, Zhifang ; Bai, Yan |
| 出版日期 | 2007 |
| 会议名称 | Joint IEEE International Frequency Control Symposium/21st European Frequency and Time Forum |
| 会议日期 | MAY 29-JUN 01, 2007 |
| 会议地点 | Geneva, SWITZERLAND |
| 英文摘要 | Both of the method and instrumentation for measurement of the low-frequency (LF) standard freuquency and time signal service system was proposed in the ITU-R new question draft published in Dec, 2005. Since the foundation of experimental LF time code service station (BPC) by National Time Service Center, Chinese Academy of Sciences in 1998, lots of research have been done in this field. Based on these research activities, a new generation of LF time code service station will run on May, 2007. The widely used method calculates field strength of the LF signal by the level of the received demodulation signal. To avoid the possibile measure error in the complicate environment, we should analyse the real measure environment. In the paper, a new method is introduced to measure signal strength considering the characters of the LF time-code signal, which is based on the technology of virtual instrument. The induction signal on the antenna is amplified, filtered and sampled directly. Then, the discrete signal is analyzed and calculated by digital signal processing and adaptive trap filter which restrain the narrow-band interference. |
| 收录类别 | CPCI |
| 产权排序 | 1 |
| 会议主办者 | IEEE |
| 会议录 | PROCEEDINGS OF THE 2007 IEEE INTERNATIONAL FREQUENCY CONTROL SYMPOSIUM-JOINTLY WITH THE 21ST EUROPEAN FREQUENCY AND TIME FORUM, VOLS 1-4
 |
| 语种 | 英语 |
| ISBN号 | 978-1-4244-0646-3 |
| 源URL | [http://210.72.145.45/handle/361003/5316]  |
| 专题 | 国家授时中心_授时方法与技术研究室 |
| 推荐引用方式 GB/T 7714 | Feng, Ping,Wu, Guichen,Liu, Zhifang,et al. A new method to measure LF time code service signal based on virtual instrument[C]. 见:Joint IEEE International Frequency Control Symposium/21st European Frequency and Time Forum. Geneva, SWITZERLAND. MAY 29-JUN 01, 2007. |
入库方式： OAI收割
来源：国家授时中心
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