| 1. | This thesis discusses detailedly the process on the research and design of laser communication system , and describes the outlook on the development of laser communication 本文详细论述了激光通信系统的研究和设计过程,并展望了激光通信的发展前景。 |
| 2. | The atmospheric turbulence effect the performance of free - space laser communication , and the atmospheric turbulence almost determined the operation distance of laser communication system 论文作者讨论了大气扰动对空间激光通信的影响,特别是大气湍流对空间激光通信的影响。 |
| 3. | The effects of the atmospheric turbulence disturbance for free - space laser communication systems are analyzed in the paper , and the correction of low - order modes with adaptive optics system for wave - front error are also discussed 本论文分析和论述了大气扰动对空间激光通信的影响以及利用自适应光学系统校正低阶模式波前误差理论。 |
| 4. | The optical channel models for airborne submarine laser communication are built . the multipath time spreading of signal pulse is studied . the waveform of received signals in receiver in submarine laser communication system is analyzed and simulated 通过蒙特卡罗方法的模拟研究,建立了机载激光对潜通信的光脉冲传输模型,研究了信号光脉冲的时间扩展,分析并模拟了接收面上的接收波形。 |
| 5. | Finally , this thesis put forward the application of frequency diversity reception to the counteraction against the frequency selectivity decline in the airborne oceanic submarine laser communication system , and whose capability graph is educed through the simulation on the computer 文中提出把频率分集接收技术应用于对潜通信中,以达到抗频率选择性衰落的目的,并通过计算机模拟得出了其性能曲线。 |
| 6. | This dissertation presents the author ' s main contributions in the studies of the sea optical scatter channel by use of monte carlo simulation on the background of airborne oceanic submarine laser communication system . physical and optical properties of physical constituents in sea optical scatter channel are studied and summarized 本文以机载海洋激光对潜通信系统为背景,分析和概括了海水光散射信道中的各物理成份的物理和光学性质,讨论了海水的固有和视在光学性质。 |
| 7. | Analyses and calculate the sensitivity of the system , and the interference of the laser emitting system to the weak signal detection system 11 is restricted , the error rate of the system is reduced , and the sensitivity of the laser communication system is enhanced by the means of the electromagnetism compatible technique 对系统的灵敏度进行了分析与计算,并利用电磁兼容控制技术,抑制了激光发射系统对微弱光电信号检测系统的干扰,降低了系统的出错率,提高了激光通信系统的灵敏度。 |
| 8. | Firstly , the main structure and integral parts of the atmospheric laser communication system are described in this thesis . with view to the demand of the whole system , it discusses one of the key technologies of optical communication , that is apt technology . it produces the general design and work process of apt system 本论文首先讲述了大气激光通信系统的主要结构和组成部件,然后围绕课题战技指标要求,阐述了光通信的关键技术之一apt技术,给出了apt系统的整体设计和工作过程,并利用数字控制的基本概念,对apt中的平台稳定伺服系统进行了详细设计,给出了仿真实验结果。 |