Browsing International Telemetering Conference Proceedings, Volume 43 (2007) by Subjects
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TURBO-CODED APSK FOR TELEMETRY(International Foundation for Telemetering, 2007-10)This paper considers the use of Amplitude-Phase Shift Keying (APSK) for a telemetry system. Variable rate turbo codes are used to improve the power efficiency of 16- and 32-APSK. We discuss compensation techniques for power amplifier nonlinearities. Simulation results show the improved spectral efficiency of this modulation scheme over those currently defined in telemetry standards.