A noncoherent CPM-detector which uses a reduced set of basisfunctions

摘要

A suboptimum noncoherent detector for partial response CPM(continuous phase modulation) is studied. The number of filters in thefilter bank is reduced by using a limited signal space in the CPMdetector. It is found that the number of dimensions in the mismatcheddetector can be considerably reduced. For a quaternary 2RCscheme with h=1/3, the number of filters is reduced from 32 toeight with a loss of about 0.5 dB in error performance. SAN(B), alimited tree search algorithm, is used for the symbol decision