Uplink Radio Frequency Signal Fluctuations

被引：0

作者：

Maejima, Hironori ^{[1
,6
]}

Sasaki, Susumu ^{[2
]}

Akagi, Chiho ^{[3
]}

Kobayashi, Harunobu ^{[4
]}

Ohkami, Yoshiaki ^{[5
]}

机构：

[1] Japan Aerosp Explorat Agcy JAXA, Inst Space & Astronaut Sci, BepiColombo Project, Chuo Ku, Sagamihara, Kanagawa 2525210, Japan

[2] Japan Aerosp Explorat Agcy JAXA, Inst Space & Astronaut Sci, Chuo Ku, Sagamihara, Kanagawa 2525210, Japan

[3] Asuka Denki Ltd, Design & Syst Dept, Fuchu, Tokyo 1838501, Japan

[4] NEC Aerosp Syst Ltd, Space & Satellite Syst Dept, Fuchu, Tokyo 1838501, Japan

[5] Keio Univ, Grad Sch Syst Design & Management, Kohoku Ku, Yokohama, Kanagawa 2238521, Japan

[6] Keio Univ, Grad Sch Syst Design & Management, Yokohama, Kanagawa 2238521, Japan

来源：

JOURNAL OF SPACECRAFT AND ROCKETS | 2013年 / 50卷 / 02期

关键词：

14;

D O I：

10.2514/1.A32185

中图分类号：

V [航空、航天];

学科分类号：

08 ; 0825 ;

摘要：

KAGUYA was a Japanese large lunar explorer that orbited and observed the moon from 2007 to 2009. During in-orbit operation, unexpected fluctuations and lock-offs of KAGUYA's uplink radio frequency telecommand signal were sometimes observed. To investigate the cause of the fluctuations, archived telemetry data were surveyed, and the telemetry data that showed the fluctuation were extracted. According to fault tree analysis of the telemetry data, multipath interference from the lunar surface and the spacecraft structure was deemed the most probable cause. This finding was verified by geometrical analysis of multipath interference. On the basis of the analysis results, the fluctuation map for a lunar polar orbiter was presented for the first time. This map was used to avoid the telecommand operation failure of KAGUYA. This lesson can be generally applied to operations of planet and lunar orbiters.

引用

页码：352 / 357

页数：6

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