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基于FPGA的精跟踪系统实验研究

Research on Fine Tracking System Based on FPGA
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摘要 精跟踪是星地光通信系统中的一项核心技术。设计了基于FPGA的宽带精跟踪系统,详细介绍了精跟踪子系统的各部分组成。系统以FPGA作为精跟踪的核心数据处理器,可完成并行、高速数据处理,跟踪控制算法采用自适应模糊PID算法,PID参数值可以实现在线实时动态调整。外场2.3km的实验表明,跟踪精度可达到3.2μrad,该系统具有良好的实用价值。 Fine tracking is the one of the core technologies in satellite-to-ground optical communication systems.The construction and working principles of fine tracking system based on FPGA are introduced and analyzed. A novel adaptive fuzzy PID algorithm is applying as the tracking control algorithm,whose parameters can be adjusted in real time.2.3km field experiments showed that the tracking accuracy can be achieved 3.2μrad, so the system is of a great practical value.
出处 《半导体光电》 CAS CSCD 北大核心 2010年第2期281-283,287,共4页 Semiconductor Optoelectronics
基金 湖北省教育厅教研基金项目(CXY2009B032)
关键词 星地光通信 精跟踪 模糊PID 跟踪精度 satellite-to-ground optical communication fine tracking fuzzy PID tracking precision
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