数字光纤直放站中的时延测量与校正 |
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引用本文: | 金绍春.数字光纤直放站中的时延测量与校正[J].大众科技,2011(10):33-35. |
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作者姓名: | 金绍春 |
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作者单位: | 电子科技大学,四川成都,611731 |
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摘 要: | 提出了应用于数字光纤直放站的时延测量与校正方法。阐述了数字光纤直放站的结构、时延测量的目的与原理、时延校正的计算。时延测量以CPRI协议为基础,包括光纤时延测量、转发时延测量。时延校正分下行时延校正和上行时延校正。下行时延校正是使同一台REC送出的IQ信号在不同的RE中能够同时射频发送出去。上行时延校正是使不同的RE接收到的IQ信号能够正确进行功率合成。
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关 键 词: | 光纤 直放站 时延测量 时延校正 CPKI 光纤时延 转发时 |
The Measurement and Adjustment of Time Delay in Digital Optical Fiber Repeater |
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Abstract: | The Method of measurement and adjustment of time delay which applies to digital optical fiber repeater has been presented.The structure of digital optical fiber repeater,the purpose and principle of time delay measurement,the calculation of time delay adjustment,has been represented.The measurement of time delay that based on CPRI protocol includes the measurement of optical fiber time delay and the measurement of forward time delay.The time delay adjustment includes uplink time delay adjustment and downlin... |
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Keywords: | optical fiber repeater time delay measurement time delay adjustment CPRI optical fiber time delay forward time delay |
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