Telemetry, tracking, and commanding (TT&C) link considerations for a LEO Sat123

被引:0
|
作者
Kreng, Jack K. [1 ]
Ardeshiri, Michelle A. [1 ]
Barbosa, Oscar C. [1 ]
Krikorian, Yogi Y. [1 ]
机构
[1] Aerosp Corp, Commun Syst Engn Dept, Los Angeles, CA 90009 USA
来源
2005 IEEE Aerospace Conference, Vols 1-4 | 2005年
关键词
D O I
暂无
中图分类号
V [航空、航天];
学科分类号
08 ; 0825 ;
摘要
Telemetry, Tracking, and Command are very important functions necessary for the proper operation of a satellite. It becomes a critical issue for the LEO-Sat program, however, when the command and control is provided from a small ground station with limited capabilities (low transmit EIRP and receive G/T), and when the satellite is in a contingency mode of operation, such as tumbling (antennas off pointed). Previous link analyses [5] have shown that the satellite link would be adequate when commanding from large remote tracking stations (RTS) with a larger antenna (45- or 60-foot dish). This paper deals with command and control of this new LEO-Sat in its early orbit, using a small remote tracking station (RTS), with a 33-foot antenna. Our analyses [2] have proven that the uplink and downlink can be closed even with a small RTS station with a 33-ft antenna. The details of these analyses are given in this paper. The communication link performance, both during normal operations as well as in contingency tumbling mode of operations, are presented here. Both the SNR (signal to noise ratio) and the threshold techniques were shown side-by-side, in the link analyses, for normal and anomalous tumbling cases, with similar results. The conclusion in Section 5 summarizes the analyses. Aerospace personnel and the satellite contractor came to a similar conclusion: that the uplink and downlink (to and from the satellite) using a small RTS station with. a 33-ft antenna have adequate link margin. In normal mode, worst-case LEO-Sat and nominal small RTS station parameters were used in the analysis. In contingency mode or tumbling mode, the worst worst-case parameters for LEO-Sat and for a small RTS station were used. A summary of the results of the analyses performed for the uplink and downlink communication paths are given in this paper.
引用
收藏
页码:1646 / 1655
页数:10
相关论文
共 31 条
  • [1] A Scheme on PN Code Tracking of DS/FH Signals for Telemetry, Tracking, and Commanding (TT&C)
    Chen, Shaohua
    Li, Jiaqi
    Wang, Ju
    MECHANICAL ENGINEERING AND INTELLIGENT SYSTEMS, PTS 1 AND 2, 2012, 195-196 : 159 - 164
  • [2] A Tutorial on the Tracking, Telemetry, and Command (TT&C) for Space Missions
    Modenini, Andrea
    Ripani, Barbara
    IEEE COMMUNICATIONS SURVEYS AND TUTORIALS, 2023, 25 (03): : 1510 - 1542
  • [3] Transmit receive module for space ground link subsystem (SGLS) and unified S-band (USB) satellite telemetry, tracking and commanding (TT&C) and communications
    Oleski, PJ
    Bharj, SS
    Patton, RW
    Thaduri, M
    MILCOM 2004 - 2004 IEEE MILITARY COMMUNICATIONS CONFERENCE, VOLS 1- 3, 2004, : 880 - 885
  • [4] Studies on the Standardization of Developing Tracking Telemetry and Control (TT&C) Equipment
    Wang Jian
    Du Xiao Ping
    Wu Yu Fei
    Yan Dong Hai
    ISTM/2009: 8TH INTERNATIONAL SYMPOSIUM ON TEST AND MEASUREMENT, VOLS 1-6, 2009, : 2440 - 2443
  • [5] A Study on the TT&C Engineering Telemetry Test
    Liu, Yang
    Jin, Wenqing
    Wang, Xiao
    2018 4TH INTERNATIONAL CONFERENCE ON ENVIRONMENTAL SCIENCE AND MATERIAL APPLICATION, 2019, 252
  • [6] Design of Tracking, Telemetry, Command (TT&C) and Data Transmission Integrated Signal in TDD Mode
    Xue, Linshan
    Li, Xue
    Wu, Weiren
    Yang, Yikang
    REMOTE SENSING, 2020, 12 (20) : 1 - 21
  • [7] The Optimization of Networked TT&C System for Mega LEO Constellation
    Ru, Man
    Zhan, Yafeng
    Xin, Fang
    20TH INTERNATIONAL WIRELESS COMMUNICATIONS & MOBILE COMPUTING CONFERENCE, IWCMC 2024, 2024, : 927 - 932
  • [8] Review of the LEO Orbit Determination Using GNSS and Application Prospect in TT&C
    Wang, Chong
    Zhu, Jun
    Fang, Yanan
    Li, Jie
    CHINA SATELLITE NAVIGATION CONFERENCE PROCEEDINGS, CSNC 2022, VOL I, 2022, 908 : 169 - 177
  • [9] Approach to Improving TT&C Coverage Rate of LEO and MEO Spacecrafts in China
    Yang Yongan 1
    2. Xi’an Satellite Control Center of China
    EngineeringSciences, 2004, (03) : 74 - 78
  • [10] DESIGN AND FABRICATION OF S-BAND DIPLEXER FOR LEO TT&C APPLICATION
    Ahni, Sang-Il
    Park, Dong-Chul
    JOURNAL OF ASTRONOMY AND SPACE SCIENCES, 2007, 24 (04) : 397 - 408