脉冲状态间隔调制方法及恶劣环境下通信实验

发布时间：2018-10-25 13:15

【摘要】：为了增强激光通信对信道的适应性,在香农理论的基础上对大气调制模型展开了研究。首先从差错的角度推导大气光通信系统误符号率与误码率的转换关系;接着通过分析大气信道下光通信的香农极限通信速率,指出大气信道带宽是影响激光通信的重要技术参数。进而提出了脉冲状态间隔调制编码方式并分析其结构特点;最后通过恶劣环境下的通信实验验证PSIM的可行性和大气信道带宽的重要性,指出信道特性实时反馈将是实现全天候激光通信的前提。
[Abstract]:In order to enhance the adaptability of laser communication to the channel, the atmospheric modulation model is studied on the basis of Shannon's theory. The conversion relationship between symbol error rate and bit error rate in atmospheric optical communication system is deduced from the angle of error, and then Shannon limit communication rate of optical communication in atmospheric channel is analyzed. It is pointed out that the bandwidth of atmospheric channel is an important technical parameter affecting laser communication. Finally, the feasibility of PSIM and the importance of the bandwidth of atmospheric channel are verified by the communication experiments in harsh environment. It is pointed out that real-time feedback of channel characteristics will be the premise of all-weather laser communication.
【作者单位】：长春理工大学空间光电技术研究所;长春理工大学理学院;吉林交通职业技术学院电子系;长春理工大学计算机科学技术学院;
【基金】：吉林省科技发展计划基金资助项目(20121302)~~
【分类号】：TN929.1

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