| FSK副载波光纤传输的灵敏度分析 |
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| 引用本文： | 苏翼凯,李铮.FSK副载波光纤传输的灵敏度分析[J].北京航空航天大学学报,1995,21(1):35-40. |
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| 作者姓名： | 苏翼凯 李铮 |
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| 作者单位： | 北京航空航天大学电子工程系 |
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| 摘 要： | 在光纤传输系统中，副载波光纤传输是一种独特的传输方式，以ＭＩＬ－ＳＴＤ－１７７３年推荐的ＦＳＫ副载波光纤传输为例，对光接收机噪声及误率进行了分析，提出在色噪声情况下常规接收机的判决门限修正，为了简化计算起见，给出一种近似计算的方法，经计算，得到了副载波ＦＳＫ在不同接收机组态及码速率情况下的灵敏度曲线，并与常见的曼彻斯特码作了对比，分析了副载波光纤传输在不同场合时的性能。
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| 关 键 词： | 光纤通信 副载波调频 通信 接收机 |
SENSITIVITY ANALYSIS OF FSK SUBCARRIER FIBER-OPTIC TRANSMISSION SYSTEM |
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| Su Yikai, Li Zheng.SENSITIVITY ANALYSIS OF FSK SUBCARRIER FIBER-OPTIC TRANSMISSION SYSTEM[J].Journal of Beijing University of Aeronautics and Astronautics,1995,21(1):35-40. |
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| Authors: | Su Yikai Li Zheng |
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| Abstract: | Subcarrier fiber-optic transmission is distinctive among fiber-optic transmission systems. An example of FSK subcarrier fiber-optic transmission is analyzed with the parameters recommended by MIL-STD-1773 standard. Noise character of optic receiver and bit error rate are analyzed. Besides,the decision threshold of conventional receiver is modified at the colored noise condition. In order to simplify the calculation,an approximate method is proposed.After calculation,the sensitivity curves of subcarrier FSK optic receiver are obtained under different receiver configuration and bit rates conditions,with the comparison of commonly used Manchester code. Finally the performance of subcarrier fiber-optic transmisson is analyzed in various situations. |
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| Keywords: | optical fibers communication sub-carrier frequency modulation communication receivers noise error code rate sensitivity |
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