• LDPC CODED APSK FOR AERONAUTICAL TELEMETRY

      Perrins, Erik; Pathak, Sumant; Univ Kansas, Electrical Engineering and Computer Science (International Foundation for Telemetering, 2017-10)
      This paper presents the performance of capacity-approaching low-density parity check (LDPC) coded amplitude phase shift keying (APSK) over aeronautical telemetry channels. We show the bit-error rate results for code-rates of 1/2, 2/3, 3/4, and 4/5 with 16 and 32 point constellations. Results are presented and compared between an optimal and sub-optimal reduced-complexity demodulating system. We also compare the results with SOQPSK-TG under similar channel conditions and provide an estimate of backoff needed for implemention with power amplifiers.