NDLI: Turbo-coded APSK for aeronautical telemetry

Content Provider	IEEE Xplore Digital Library
Author	Shaw, C. Rice, M.
Copyright Year	2009
Description	Author affiliation: Brigham Young University, Provo, UT 84602, USA (Shaw, C.; Rice, M.)
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 nonlinear 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 result show that the −50 dBc bandwidth can be matched with 2.5 to 4.1 dB of backoff, the −60 dBc bandwidth can be matched with 4.3 to 6.6 dB of backoff, and the 99% bandwidth can be matched with 0.8 to 1.6 dB of backoff. The bit error rate results show that each power amplifier has an optimal backoff and that this backoff 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	317
Ending Page	321
File Size	372225
Page Count	5
File Format	PDF
ISBN	9781424429707
DOI	10.1109/WDDC.2009.4800368
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2009-02-08
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Radio frequency Bit error rate Power amplifiers Bandwidth Turbo codes Radiofrequency amplifiers Telemetry Pulse modulation Continuous phase modulation Quadrature phase shift keying
Content Type	Text
Resource Type	Article

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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