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为保证快速、有效的激光通信系统数据传输,对数据传输误差成因进行分析。重点分析了由惯性导航系统和定位仪器测量精度差产生的状态误差和定位误差,简要介绍了较正误差、伺服驱动误差和指向误差的成因。由于误差成因种类多且影响程度不一,单项误差控制难以实现,故设计基于模糊逻辑控制技术的激光通信数据传输控制器,以产生误差的激光通信系统测量值为输入值提取控制参数,建立模糊控制规律,并通过实验分析控制器性能。实验结果显示,所设计的控制器响应快,对数据传输误差的控制有效性强。
In order to ensure fast and effective laser communication system data transmission, the cause of data transmission error is analyzed. The state error and positioning error caused by the measurement accuracy of inertial navigation system and positioning instrument are analyzed emphatically. The causes of the correction error, servo drive error and pointing error are briefly introduced. Due to the variety of error causes and the different degrees of influence, the single error control is difficult to be realized. Therefore, a laser communication data transmission controller based on fuzzy logic control technology is designed to extract the control parameters from the measured value of the laser communication system with errors and establish fuzzy Control law, and through the experiment analysis of controller performance. The experimental results show that the designed controller responds fast and the control of data transmission error is effective.