A New Detection Technique for Digital Radio Communication Systems:Applied Spectrum Phase Interpolation

摘要

In cellular communications systems using digital radio services, especially those that use lowearth orbiting satellites (LEOs), phase-modulated signals such as OPSK are received with relatively fast Doppler shifts. We developed a coherent detector which uses a new algorithm called the spectrum phase interpolation method (SPIM) to compensate for the Doppler shifts.SPIM will aid TDMA propagation analyses of QAM and QPSK modulated waves and orthogonally vector spread spectrum modulated waves.