| 引用本文： |
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庞岳峰,李春锋,牛攀峰,等.基于理论弹道速度匹配的飞行器测控记忆跟踪算法[J].电讯技术，2016，56（4）： - . [点击复制]
- PANG Yuefeng,LI Chunfeng,NIU Panfeng,et al.A memory tracking algorithm for spacecraft TT&C based on theoretical trajectory velocity matching[J].，2016，56（4）： - . [点击复制]
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| 摘要: |
| 针对遥测设备现有记忆跟踪存在速度跳变和外推误差大的问题，提出了一种基于理论弹道速度匹配的记忆跟踪算法。分析了遥测设备记忆跟踪算法原理与不足，对原记忆跟踪算法进行改进，同时将Neville算法用于记忆跟踪数据插值。仿真结果表明新算法外推10 s、5 s和3 s的均方根误差比原算法平均减小44.9%。新算法在设备应用的测试结果同样证明了其优越性。 |
| 关键词: 遥测设备 记忆跟踪 速度匹配 Neville插值算法 |
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| A memory tracking algorithm for spacecraft TT&C based on theoretical trajectory velocity matching |
| PANG Yuefeng,LI Chunfeng,NIU Panfeng,KONG Shangman |
| () |
| Abstract: |
| The memory tracking module in telemetry equipment is used for keeping antenna in tracking state. However,by analysis of actual data from many different missions,the memory tracking module has two problems,one is the velocity jumping,and the other is the big extrapolation error. Through analyzing original memory tracking algorithm,this paper proposes a new memory tracking algorithm based on velocity matching,which is an improvement on the original one. At the same time,Neville interpolation algorithm is used for the interpolation of memory tracking data.Simulation result shows the root mean square error(RMSE) of new algorithm is 44.9% smaller than that of the original one in the case of 10 s,5 s and 3 s extrapolation. Test results of new algorithm in telemetry equipment also proves its superiority. |
| Key words: telemetry equipment memory tracking velocity matching Neville interpolation algorithm |
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