Timing synchro-mesh null of digital angular

摘要

PURPOSE: To obtain the timing synchronization system attaining a stable operation with respect to the timing synchronization system used for receiving an angular modulation signal among digital modulation systems employed for a mobile communication system or the like. ;CONSTITUTION: A base band delay detection system is provided with a complex- angle converter 112, a phase difference calculation device 113, a mapping circuit 114 and an edge detection circuit 115 to generate a trigger pulse in synchronism with an interval between symbols not following to a slow phase rotation. Then the output of the circuit 115 is inputted to a symbol synchronization circuit 117, from which a stable timing synchronizing signal is generated.;COPYRIGHT: (C)1994,JPO&Japio