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Proceedings Paper

Communications trade-offs for unattended ground sensors
Author(s): Shou Y. Mui
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Paper Abstract

This paper examines a number of modulation, forward error- correction (FEC) coding, and synchronization techniques for use with unattended ground sensors. Included in the discussion are coherent and non-coherent modulation techniques, and block and convolutional codes. The synchronization requirements for coherent and non-coherent signaling are analyzed. it is shown that the estimation the signal phase for coherent demodulation does not increase length of the preamble used to aid synchronization. Hence, coherent modulation should be chosen over non-coherent signaling to improve the power efficiency. It is also shown that the use of FEC coding does not increase the required preamble energy. Thus, coding should be employed to achieve an improved bit error rate.

Paper Details

Date Published: 24 July 1997
PDF: 12 pages
Proc. SPIE 3081, Peace and Wartime Applications and Technical Issues for Unattended Ground Sensors, (24 July 1997); doi: 10.1117/12.280650
Show Author Affiliations
Shou Y. Mui, Lockheed Martin Communication Systems (United States)


Published in SPIE Proceedings Vol. 3081:
Peace and Wartime Applications and Technical Issues for Unattended Ground Sensors
Gerold Yonas, Editor(s)

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