An Improved Joint Blind Synchronization Algorithm for M-PSK and M-QAM Signals (U).

Download or read book An Improved Joint Blind Synchronization Algorithm for M-PSK and M-QAM Signals (U). written by and published by . This book was released on 1996 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt: Presents results of studies to improve the performance of a previously developed joint blind synchronization algorithm for phase shift keying and quadrature amplitude modulated signals using digital signal processing based approaches. In this context, blind implies that no a-priori information is known about the signal or its structure other than the symbol rate and the modulation type. The blind synchronization technique exploits the self-coherency of the received sampled data using a nearest neighbour type of search method whose objective is to minimize a certain cost function. The report describes two improvements made to the algorithm: lifting of a previous restriction of an integer relationship between the baud rate and the sampling rate of the analog to digital converter in the receiver, and a coarse two-dimensional search implemented to provide the original search strategy with initial starting points. Simulation results are presented to illustrate the performance improvements achieved.