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火箭飞行鉴定模拟器基准误差传递分析 被引量:3
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作者 高波 黄席樾 +1 位作者 车著明 李文星 《宇航学报》 EI CAS CSCD 北大核心 2002年第2期50-53,共4页
根据单脉冲雷达及其它火箭飞行地面测控设备精度鉴定的需要 ,推导出单台和两台激光电影经纬仪基准在火箭飞行鉴定模拟器航路上的设备固有误差传递变化关系式 ,从而决定 :1.基准是否可用 ?2 .在两台经纬仪都有数据的情况下 ,何时用交汇... 根据单脉冲雷达及其它火箭飞行地面测控设备精度鉴定的需要 ,推导出单台和两台激光电影经纬仪基准在火箭飞行鉴定模拟器航路上的设备固有误差传递变化关系式 ,从而决定 :1.基准是否可用 ?2 .在两台经纬仪都有数据的情况下 ,何时用交汇基准、何时用单台基准才能使鉴定更准确 ?3 .怎样才能鉴定速度 ?本文推导出了公式 ,给出了便捷的计算方法和误差传递上机计算曲线 ,并进行了分析。模型已成功地应用于单脉冲雷达的精度鉴定 。 展开更多
关键词 飞行鉴定模拟器 基准误差传递分析 火箭飞行 地面测控设备
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Model identification of hydraulic flight simulator based on improved particle swarm optimization and wavelet analysis
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作者 郭敬 董彦良 +1 位作者 赵克定 郭治富 《Journal of Harbin Institute of Technology(New Series)》 EI CAS 2009年第5期656-660,共5页
A new model identification method of hydraulic flight simulator adopting improved panicle swarm optimization (PSO) and wavelet analysis is proposed for achieving higher identification precision. Input-output data of... A new model identification method of hydraulic flight simulator adopting improved panicle swarm optimization (PSO) and wavelet analysis is proposed for achieving higher identification precision. Input-output data of hydraulic flight simulator were decomposed by wavelet muhiresolution to get the information of different frequency bands. The reconstructed input-output data were used to build the model of hydraulic flight simulator with improved particle swarm optimization with mutation (IPSOM) to avoid the premature convergence of traditional optimization techniques effectively. Simulation results show that the proposed method is more precise than traditional system identification methods in operating frequency bands because of the consideration of design index of control system for identification. 展开更多
关键词 hydraulic flight simulator wavelet analysis multiresolution analysis (MRA) panicle swarm optimization (PSO) frequency bands weighting approach
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