Phase errors in the coherent demodulation of VPSK and a sol ution using DSSS modulation[A].South Africa 1997.Whaits C V,Braun R M.Phase errors in the coherent demodulation of VPSK and a solution using DSSS modulation.Proceedings of COMSIG‘97. 1997...
FIG. 13 is a simulation that uses a Pedestrian B channel model at Ec/NO=0 dB. Various models of multipath interference have been developed, such as pedestrian A, pedestrian B, vehicular A, typical urban, etc. Various models may be downloaded from Matlab, for example. ...
OQPSK modulation and demodulation incur system delays that depend on the pulse shaping used. Account for the system delay when extracting the I and Q bitstreams for the demodulator. During frequency compensation and timing recovery, the received constellation can rotate significantly while the ...