| 卫星扩频测控体制研究 |
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| 引用本文： | 朱雪萍,刘锐梅,金野,陶成华,张立华. 卫星扩频测控体制研究[J]. 无线电工程, 2006, 36(3): 39-41 |
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| 作者姓名： | 朱雪萍 刘锐梅 金野 陶成华 张立华 |
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| 作者单位： | 1. 航天东方红卫星有限公司,北京,100094
2. 北京大学,北京,100781 |
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| 摘 要： | 介绍了USB微波统一测控系统、连续波测量系统、GPS原理。对中低轨卫星扩频测控采用的测控体制作了相应的论述与设计。提出中低轨卫星测控采用星地上下行信号相干(包括载波相干、伪码相干)方式,使星上应答机发射的下行频率与地面站发射的上行频率同步,消除星地钟差,完成卫星的测速、测距以及遥测遥控任务,并阐述了星地扩频测控设备的组成和工作原理。
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| 关 键 词： | 扩频 测控 GPS 相干 非相干 |
| 收稿时间： | 2005-09-10 |
| 修稿时间： | 2005-09-10 |
Study on Satellite Spread-spectrum TTC System |
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| ZHU Xue-ping,LIU Rui-mei,JIN Ye,TAO Chen-hua,ZHANG Li-hua. Study on Satellite Spread-spectrum TTC System[J]. Radio Engineering of China, 2006, 36(3): 39-41 |
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| Authors: | ZHU Xue-ping LIU Rui-mei JIN Ye TAO Chen-hua ZHANG Li-hua |
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| Affiliation: | 1. DFH Satellite CO. LTD, Beijing 100094, China ;2. Beijing University, Beijing 100781, China |
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| Abstract: | This paper introduces USB(Unified S-Band System ),continuous wave measuring system and GPS principles,and then describes and designs a kind of spread spectrum TTC system for medium and low earth orbit satellites. We suggest that for medium and low earth orbit satellites, uplink signal of TTC system should be coherent with downlink signal in respect of carrier and ranging pseudo code,in order to synchonize uplink signal and downlink signal and eliminate time difference between satellite transponder and ground station.This paper also describes spread spectrum system and its operation principle. |
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| Keywords: | GPS |
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