• TURBO-CODED APSK FOR TELEMETRY

      Shaw, Christopher; Rice, Michael; Brigham Young University (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.