CN1333538C - 一种射频拉远模块中时钟信号的数字锁相方法 - Google Patents
一种射频拉远模块中时钟信号的数字锁相方法 Download PDFInfo
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- CN1333538C CN1333538C CNB2005100553602A CN200510055360A CN1333538C CN 1333538 C CN1333538 C CN 1333538C CN B2005100553602 A CNB2005100553602 A CN B2005100553602A CN 200510055360 A CN200510055360 A CN 200510055360A CN 1333538 C CN1333538 C CN 1333538C
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Families Citing this family (14)
Publication number | Priority date | Publication date | Assignee | Title |
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CN100379306C (zh) * | 2006-02-22 | 2008-04-02 | 华为技术有限公司 | 连接主基站与射频拉远单元的接口装置 |
CN101098220B (zh) * | 2006-06-29 | 2010-08-18 | 中兴通讯股份有限公司 | 一种基于数字锁相环的时钟同步方法及其系统 |
CN101039145B (zh) * | 2007-03-30 | 2010-08-04 | 华为技术有限公司 | 时钟的实现方法、装置 |
CN101078763B (zh) * | 2007-04-25 | 2011-09-14 | 北京网新易尚科技有限公司 | 在ip网络中依靠卫星定位系统校准时钟频率的方法及设备 |
CN101145864B (zh) * | 2007-10-11 | 2011-04-20 | 华为技术有限公司 | 一种提高基准钟性能的方法及系统 |
CN101150330A (zh) * | 2007-10-22 | 2008-03-26 | 华为技术有限公司 | 一种消除频偏的方法及移动终端 |
CN101424734B (zh) * | 2007-10-31 | 2012-01-04 | 中国科学院微电子研究所 | 降低全球定位系统接收机的晶振成本的方法 |
CN101437320B (zh) * | 2007-11-15 | 2010-12-08 | 中兴通讯股份有限公司 | 一种适用于射频拉远模块多级级联的时钟处理方法及装置 |
CN101252404B (zh) * | 2008-03-31 | 2012-01-04 | 重庆大学 | 基于fpga的分布式网络时钟同步系统及方法 |
CN101267251A (zh) * | 2008-04-30 | 2008-09-17 | 中兴通讯股份有限公司 | 分布式基站时钟同步方法和系统 |
CN102195768B (zh) * | 2011-05-30 | 2014-06-04 | 神州数码网络(北京)有限公司 | 一种纳秒级精度ptp实现方法 |
CN103178836B (zh) * | 2011-12-21 | 2017-08-25 | 北京普源精电科技有限公司 | 一种提供时钟信号的方法、装置及频谱分析仪 |
CN102629103A (zh) * | 2012-03-30 | 2012-08-08 | 上海鸿晔电子科技有限公司 | 卫星授时系统的网络时钟守时模块低阶调整方法 |
CN104811197B (zh) * | 2015-03-30 | 2019-02-12 | 江汉大学 | 一种同步鉴相方法及原子频标 |
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US5999025A (en) * | 1998-03-27 | 1999-12-07 | Xilinx, Inc. | Phase-locked loop architecture for a programmable logic device |
CN1286530A (zh) * | 1999-11-12 | 2001-03-07 | 深圳市中兴通讯股份有限公司 | 一种时钟同步系统数字锁相环实现方法 |
US6538518B1 (en) * | 2000-12-26 | 2003-03-25 | Juniper Networks, Inc. | Multi-loop phase lock loop for controlling jitter in a high frequency redundant system |
KR20040086977A (ko) * | 2003-04-03 | 2004-10-13 | 이노에이스(주) | 갭 필러 신호 처리부의 클럭 동기화 시스템 및 그 방법 |
CN1585273A (zh) * | 2004-05-26 | 2005-02-23 | 中兴通讯股份有限公司 | 一种实现时钟互同步的方法 |
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- 2005-03-18 CN CNB2005100553602A patent/CN1333538C/zh active Active
Patent Citations (5)
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US5999025A (en) * | 1998-03-27 | 1999-12-07 | Xilinx, Inc. | Phase-locked loop architecture for a programmable logic device |
CN1286530A (zh) * | 1999-11-12 | 2001-03-07 | 深圳市中兴通讯股份有限公司 | 一种时钟同步系统数字锁相环实现方法 |
US6538518B1 (en) * | 2000-12-26 | 2003-03-25 | Juniper Networks, Inc. | Multi-loop phase lock loop for controlling jitter in a high frequency redundant system |
KR20040086977A (ko) * | 2003-04-03 | 2004-10-13 | 이노에이스(주) | 갭 필러 신호 처리부의 클럭 동기화 시스템 및 그 방법 |
CN1585273A (zh) * | 2004-05-26 | 2005-02-23 | 中兴通讯股份有限公司 | 一种实现时钟互同步的方法 |
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Address after: 430205 No.1 tanhu 2nd Road, Canglong Island, Jiangxia District, Wuhan City, Hubei Province Patentee after: CITIC Mobile Communication Technology Co.,Ltd. Address before: 430205 No.1 tanhu 2nd Road, Canglong Island, Jiangxia District, Wuhan City, Hubei Province Patentee before: CITIC Mobile Communication Technology Co., Ltd |