A full digital GMSK demodulation method
Bingzhe He · Space Electronic technology · 2011
This paper presents a method of full digital intermediate frequency receive for GMSK demodulation,and discusses carrier synchronization and bit synchronization as an important aspect.Carrier synchronization,selecting and using decision feedback loop,can realize carrier return of particular range of BT.Then according to the formal consistency between linear approximation GMSK signal and OQPSK signal,using the DTTL which is used in bit synchronization of OQPSK for reference,the bit synchronization applicable to GMSK is designed.Both simulation and implementation results of hardware indicate that this method is simple and effective.