NDLI: Turbo-Coded APSK for aeronautical telemetry

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Turbo-Coded APSK for aeronautical telemetry

Content Provider	IEEE Xplore Digital Library
Author	Shaw, C. Rice, M.
Copyright Year	1986
Abstract	The performance of turbo-coded Amplitude-Phase Shift Keying (APSK) in an aeronautical telemetry system with a non-linear power amplifier is investigated. The AM/AM curves for four L-band power amplifiers are modeled and used to simulate the performance the turbo-coded APSK system over a non-linear channel, Spectral efficiency and bit error rate performance as a function of back-off are quantified and compared with a system based on the existing aeronautical telemetry standard using uncoded SOQPSK. The results show that the -50 dBc bandwidth can be matched with 2.5 to 4.1 dB of back-off, the -60dBc bandwidth can be matched with 4.3 to 6.6 dB of back-off, and the 99%. bandwidth can be matched with 0.8 to 1.6 dB of back-off. The bit error rate results show that each power amplifier has an optimal back-off and that this back-off is 3 dB for the four amplifiers used in this study. When put together, this system is capable of outperforming an uncoded system based on SOQPSK by matching (or exceeding) the detection efficiency while simultaneously achieving a spectral efficiency in excess of three times that of SOQPSK.
Starting Page	37
Ending Page	43
Page Count	7
File Size	2159778
File Format	PDF
ISSN	08858985
Volume Number	25
Issue Number	4
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2010-04-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Turbo codes Telemetry Power amplifiers Radiofrequency amplifiers Radio frequency Bit error rate Testing Continuous phase modulation Quadrature phase shift keying Pulse modulation
Content Type	Text
Resource Type	Article
Subject	Aerospace Engineering Electrical and Electronic Engineering Space and Planetary Science

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