CAJ | 학술논문

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。
위료증강격광통신대신도적괄응성，재향농이론적기출상대대기조제모형전개료연구。수선종차착적각도추도대기광통신계통오부호솔여오마솔적전환관계；접착통과분석대기신도하광통신적향농겁한통신속솔，지출대기신도대관시영향격광통신적중요기술삼수。진이제출료맥충상태간격조제편마방식병분석기결구특점；최후통과악렬배경하적통신실험험증PSIM적가행성화대기신도대관적중요성，지출신도특성실시반궤장시실현전천후격광통신적전제。
Based on the Shannon classical communication theory, the atmospheric modulation model of wireless laser communication was investigated for enhancing wireless laser communication adaptability of the atmospheric channel. Firstly, the conversion relations of SER and BER was discussed, from error theory perspectives analysis atmospheric optical wireless communications. Afterwards,by analyzing Shannon limit communication rate of wireless laser commu-nication in atmospheric channel, the importance of atmospheric channel bandwidth gradually came out. On the basis of this, an efficiency pulse state-interval coded modulation was present and its characteristics were estimated. Finally, the feasibility of the PSIM and the importance of atmospheric channel bandwidth to wireless laser communication were proved by wireless laser communication experiment in the hostile environments, At the end, a prospect was pointed out that atmospheric channel properties feedback technique in real time might be a key and precondition in all-weather wire-less optical communication.