Experimental test and evaluation of a GMSK chipset compatible with the GSM and PCS standards

The paper presents experimental test and evaluation results of a baseband processor chipset of Gaussian minimum shift keyed (GMSK) quadrature modulator. Quadrature GMSK and related quadrature Feher's QPSK (FQPSK) modulator structure have been of interest to digital communication engineers. The present authors highlight the cross-correlation properties of the in-phase (I) and the quadrature-phase (Q) signals, describe some of the advantages of cross-correlation, give a simple analytical expression and discuss correlated signal processors initiated by Kato and Feher [1986] and also described in Feher [1995] and other references.<
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