基于飞机着陆下滑引导监视系统设计需求,针对现有光电经纬仪通信的缺陷,通过分析系统通信物理链路,突破了光电经纬仪之间通信转换协议设计、查表法CRC码校验快速计算、实测数据滤波模型构建等关键技术,以软件技术代替硬件板卡信号处理,实现了稳定可靠且成本低廉的飞机着陆下滑引导监视系统,实验部分验证了该方法的有效性.目前,该系统已成功应用到某型飞机灯光着陆系统试飞中.%Based on the design demand of guidance and monitoring system for aircraft landing,the key technologies such as protocol design for communication conversion between photoelectric theodolites,rapid computation of CRC codes using table checking method,and filtering model construction for measured data were realized after analyzing physical link of system com-munication in view of the communication defects of the available photoelectric theodolite. The hardware board is substituted with software technology for signal processing,implementing a reliable and low-cost guidance and monitoring system for aircraft landing. In the experiment,the reliability of the system is verified. Currently,the system has been successfully applied to the trial flight of a certain model aircraft lighting landing system.
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