| PCM34Mb/s微波通信系统中的帧同步新方案 |
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| 引用本文： | 张邵怀,孙仁琦. PCM34Mb/s微波通信系统中的帧同步新方案[J]. 南京邮电大学学报(自然科学版), 1992, 0(4) |
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| 作者姓名： | 张邵怀 孙仁琦 |
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| 作者单位： | 南京邮电学院无线电工程系，南京邮电学院无线电工程系 |
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| 摘 要： | 在先进的数字微波通信设备中,为了灵活地传输各种数字微波设备本身所需要的公、业务信号,往往都采用微波帧复接技术。由于在CCITT、CCIR建议中没有关于微波帧复接设备的建议,而且CCITT建议中用于复接设备的帧同步方法仅适用于恒参信道的情况,不适用于有衰落的信道情况如数字微波通信中,因此,有必要研究新的抗衰落帧同步方法。本文在分析了有关帧同步的各种方法之后,提出了一种性能优良的改进抗衰落帧同步方案,井对这种方案的性能作了分析与比较。
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| 关 键 词： | 数字微波接力系统 帧同步 衰落 |
A New Scheme of Frame Synchronization PCM 34Mb/s Microwave Communication Systems |
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| Zhang Shaohuai Sun Renqi. A New Scheme of Frame Synchronization PCM 34Mb/s Microwave Communication Systems[J]. JJournal of Nanjing University of Posts and Telecommunications, 1992, 0(4) |
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| Authors: | Zhang Shaohuai Sun Renqi |
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| Affiliation: | Department of Radio Engineering |
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| Abstract: | Due to the fram synchronization method of CCITT recommendation is not good enough in property of resisting fading,we introduce the resisting fading fram synchronization method.in addition,an improved of this method is also proposed. The results obtained from theoretical analysis and the advantages in property of resisting fading compared with the method of CCITT recommcndation. Finally,a scheme of the fram multiplex for PCM 34Mb/s microwave communication system is given and the unit of positive pulse stuffing is hardware implemented. |
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| Keywords: | Digital microwave relay systems Frame alignment. Fading |
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