| 一种基于累加支路辅助的上面级跟踪切换方案 |
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| 引用本文： | 南海涛,李志强,楼德侃,贾鹏. 一种基于累加支路辅助的上面级跟踪切换方案[J]. 现代电子技术, 2012, 35(15): 4-6 |
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| 作者姓名： | 南海涛 李志强 楼德侃 贾鹏 |
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| 作者单位： | 解放军理工大学通信工程学院全军卫星通信重点实验室,江苏南京,210007 |
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| 基金项目： | 国家自然科学基金资助项目(60972061,60972062,61032004) |
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| 摘 要： | 为了满足火箭上面级测控下行信息量增大的特殊要求,借鉴等时性插入业务的思想设计了一种新的适应于上面级测控的信息帧格式。在此基础上,提出了这种帧格式下的跟踪方案,设计利用二阶环路滤波器累加支路输出辅助伪码跟踪环与位同步环的切换。根据推导出的比例因子,仿真了其性能。仿真结果表明,这种切换方式可以实现平滑过渡,性能良好。
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| 关 键 词： | 上面级 帧格式 等时业务 插入业务 跟踪方案 |
Scheme of upper-stage tracking switch based on accumulative branch |
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| NAN Hai-tao , LI Zhi-qiang , LOU De-kan , JIA Peng. Scheme of upper-stage tracking switch based on accumulative branch[J]. Modern Electronic Technique, 2012, 35(15): 4-6 |
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| Authors: | NAN Hai-tao LI Zhi-qiang LOU De-kan JIA Peng |
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| Affiliation: | (Key Laboratory of Military Satellite Communication,Institute of Communication Engineering, PLA University of Science and Technology,Nanjing 210007,China) |
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| Abstract: | In order to meet the need of tracking a huge number of data in the downlink of upper-stage on rocket,a novel information frame format for upper-stage was designed based on isochronous insertion.The tracking scheme in this frame format was described as follows: the output of the accumulative branch on second-order loop filter is used to aid the switch between Delay Locked Loop and Bit-synchronization Loop.The performance of this scheme is simulated by Matlab based on the educed scaling factor.The simulation results illustrate that the switch scheme realized smooth transitions with high performance. |
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| Keywords: | upper-stage frame format isochronous service insertion service tracking scheme |
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