| 摘要: |
| 针对航天器测控中利用卫星通信转发器实现多站测距进行可行性分析，在扩频测距
帧测距原理的基础上，研究利用卫星转发器对上行测距信号变频转发来实现对星测距，同时
对卫星工程测控与应用系统之间上下行链路功率分配、标校方法、地面测量设备组成原理等
关键技术进行分析论述。该测距方案突破了传统多站测距时受卫星应答机配置数量的限制条
件，实现多站同时测距后，可以提高测距精度和定轨精度，降低对设备测角精度的要求，减
少测轨时间，有效缓解测控设备资源紧张的状况，同时该测距方式还可作为应答方式侧音测
距的有效技术备份手段。 |
| 关键词: 卫星测控 通信转发器 扩频测距 定轨 |
| DOI： |
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| 基金项目: |
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| Spread spectrum ranging technique based on communication translator |
| CHEN Yong,CHEN Ju,LI Guang-qing |
| () |
| Abstract: |
| The feasibility of using satellite translator to realize multiple-station rangi
ng in TT&C of spacecraft is analyzed．On basis of spread spectrum ranging principle，using communication translator that translates uplink ranging signals to downlink ranging signals to a
chieve distance-measuring for satellite is studied.Meanwhile，the key technolog
y including communication link power allocation between engineering TT&C and application sy
stem of satellite，calibration method and the principle of satellite ground meas
uring equipment is described.The ranging scheme can break through traditional
multiple-station ranging method that is limited by the number of satellite tra
nsponders.The achievement of new multiple-station ranging technique can improve r
anging precision of equipment and orbit precision of satellite,reduce the require
ment of equipment′goniometer precision and measuring time，and contr
ol equipment resources tension situation，while the ranging method is a backup m
eans for side tone ranging using satellite transponder. |
| Key words: satellite TT&C; communication translator spread spectrum ranging orbit determination |
