空间激光通信调制技术的研究进展

Research progress of modulation technology for space laser communication

摘要:

空间激光通信系统具有传输速率高、体积小、质量轻、功耗低等特点，适用于卫星高速数据传输。激光通信调制技术作为空间激光通信系统的一项关键技术，是影响系统通信性能的主要因素之一。首先，介绍空间激光通信调制技术的原理及其分类，并对其优缺点做比较分析，再对激光调制的关键技术进行阐述；然后，从发展阶段与应用环境角度对国内外已报道的空间激光通信调制技术研究进展进行总结；最后，对空间激光通信调制技术的发展趋势进行展望。

Abstract:

Space laser communication system has the characteristics of high transmission rate, small volume, light weight and low power consumption, which is suitable for satellite high-speed data transmission. As key technology of space laser communication system, laser modulation is one of the main factors affecting its communication performance. This article first introduces the principle and classification of various space laser communication modulation techniques, and makes a comparative analysis of their advantages and disadvantages, and then elaborates the key technologies of laser modulation. Finally, from the perspective of development stage and application environment, the research progress of the existing reported space laser communication modulation technology at home and abroad is summarized, and the development trend of space laser communication modulation technology is prospected.