Simulation of Satellite Telemetry-Telecommand Coherent Transponder

Authors

  • Adil Hameed Ahmad Electrical Engineering Department, University of Technology, Baghdad, Iraq Author
  • Samer Majid Mohsen Satellites Technology Center, Ministry of Science & Technology, Baghdad, Iraq Author

Keywords:

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Abstract

The Telemetry/Telecommand Transponder is the unit on board a satellite that maintains the communication link between the satellite and the control center on the Earth. The spacecraft includes service telecommunications Telemetry and Telecommand (TMTC) and On-Board Supervision (OBS) subsystem to provide telemetry, telecommand and ranging functions during all phases of the mission. The function of transponder, generally, is receiving the uplink signal modulated with telecommand and ranging tones, process it, and transmit the downlink signal (at different frequency) modulated with telemetry and ranging signal to the ground station. In this research, European Space Agency's recommendations and standard have followed to calculate the coherent transponder parameters. The coherent transponder and the related communication functions have been simulated using MATLAB Simulink software version 6.5. The computer simulation was necessary to show the performance of such functional block under the influence of many parameters like Doppler shift, input signal level variation, and damping factor variation.

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Key Dates

Published

2007-09-01

Issue

Vol. 11 No. 2 (2007): Journal of Engineering and Development

Section

Articles

License

Creative Commons License

This work is licensed under a Creative Commons Attribution 4.0 International License.

The Journal of Engineering and Sustainable Development is an open-access journal that all contents are free of charge. Articles of this journal are licensed under the terms of the Creative Commons Attribution International Public License CC-BY 4.0 (https://creativecommons.org/licenses/by/4.0/legalcode) that licensees are unrestrictly allowed to search, download, share, distribute, print, or link to the full texts of the articles, crawl them for indexing and reproduce any medium of the articles provided that they give the author(s) proper credits (citation). The journal allows the author(s) to retain the copyright of their published article.
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How to Cite

Hameed Ahmad, A. ., & Majid Mohsen, S. . (2007). Simulation of Satellite Telemetry-Telecommand Coherent Transponder. Journal of Engineering and Sustainable Development, 11(2), 46-68. https://jeasd.uomustansiriyah.edu.iq/index.php/jeasd/article/view/1720