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| 星间光通信系统BER的自适应带宽控制方法 | |
| 引用本文： | 王朝晖. 星间光通信系统BER的自适应带宽控制方法[J]. 燕山大学学报, 2006, 30(4): 356-360 |
| 作者姓名： | 王朝晖 |
| 作者单位： | 燕山大学,信息科学与工程学院,河北,秦皇岛,066004 |
| 摘 要： | 从接收机的接收功率与卫星振动幅值的关系出发,采用OOK调制方式,以APD为光电探测器,通过近似处理,推导得到了带宽与卫星振动的直接关系式。针对比特误码率(BER)随振动幅值增加而上升的问题提出了用带宽自适应方法控制的解决方案。用MATLAB6.5计算得到了自适应和标准条件下与卫星振动的关系曲线,以及自适应条件下带宽与BER卫星振动的关系曲线。计算结果表明,采用带宽自适应方法可将BER值控制在设计要求以下。 |
| 关 键 词： | 空间光通信 比特误码率 振动 自适应带宽 |
| 文章编号： | 1007-791X(2006)04-0356-05 |
| 修稿时间： | 2006-01-09 |
Adaptive bandwidth for BER in intersatellite optical communication |
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| WANG Zhao-hui. Adaptive bandwidth for BER in intersatellite optical communication[J]. Journal of Yanshan University, 2006, 30(4): 356-360 | |
| Authors: | WANG Zhao-hui |
| Abstract: | A direct mathematical expression for the relationship between the system bandwidth and the satellite vibration amplitude has been derived. The assumption in the derived model is that the satellite communication system adapts on-off keying (OOK) modulation and an APD as the detector. Meanwhile some approximation has been used. An adaptive bandwidth solution to the problem of the bit error rate (BER) increasing with the vibration increasing has been presented. Curve diagrams about vs vi- bration amplitude and system bandwidth vs vibration amplitude have been plotted using MATLAB 6.5 in practical model and ad- aptive model. Comparison and analysis show that can be controlled under the desired numerical value with the help of adaptive model. |
| Keywords: | space optical communication bit error rate vibration adaptive bandwidth |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ | |