Title :
A New Synchronization Scheme of Double-PN DSSS QPSK System
Author_Institution :
Coll. of Electron. & Inf. Eng., Beijing Univ. of Aeronaut. & Astronaut., Beijing, China
Abstract :
This paper proposed one kind of new synchronization design of double-PN DSSS QPSK system which used for burst communication in high dynamic circumstance. The design uses a fully parallelized two-dimensional differential correlation peak search scheme and one- order FLL assisting two-order PLL to achieve the synchronization of a DSSS signal. The scheme of the algorithm that can implement in a FPGA is also given. The design can realize rapid synchronization in a DSSS system in condition of increasing suitable resource of FPGA.
Keywords :
code division multiple access; correlation methods; field programmable gate arrays; frequency locked loops; phase locked loops; quadrature phase shift keying; spread spectrum communication; FPGA resource; burst communication; double-PN DSSS QPSK system; fully parallelized two-dimensional differential correlation peak search scheme; one-order FLL assisting two-order PLL; synchronization scheme; Correlation; Field programmable gate arrays; Mixers; Phase shift keying; Signal to noise ratio; Spread spectrum communication; Synchronization;
Conference_Titel :
Wireless Communications, Networking and Mobile Computing (WiCOM), 2011 7th International Conference on
Conference_Location :
Wuhan
Print_ISBN :
978-1-4244-6250-6
DOI :
10.1109/wicom.2011.6040067
