TDMA radio system uses BPSK synchronization to be QPSK signal subject to random variation of phase and multipath fading.

摘要

A MULTIPLE ACCESS TIME DIVISION (TDMA) radio system carrying a AMONIZADOR CHANGE MODULATED quadrature phase (QPSK) signals DATA IN, IS WILLING. IN ORDER TO OVERCOME DISTORTION A multi-path and the phase variation introduced by the radio channel, part TIMING OF A TIME SLOT TDMA IS TRANSMITTED IN JUST A vector QPSK modulation. The system uses TIMING PORTION OF VECTOR PLOTTING TO DEVELOP A CANAL THAT IS APPLIED TO ESTIMATED PORTION OF MESSAGE RECEIVED QPSK data signal to compensate for distortion multipath and variation PHASE FOR A TIME SLOT TDMA.