Title :
Design and Implement of OQPSK Modulator Based on FPGA
Author :
Fang, Li ; Xizheng, Ke ; Qian, Li
Author_Institution :
Xi´´an Univ. of Technol., Xi´´ an
fDate :
Aug. 16 2007-July 18 2007
Abstract :
OQPSK is the one kind of improved QPSK. QPSK can produce the phase ambiguity in carrier recovery process. OQPSK eliminates the influence of phase ambiguity, on the correct decision. For the requirement of designing the digital modulation of satellite signal simulator channel, the article proposes the proposal to realize the OQPSK by selecting Xilinx Corporation Spartan3 series XC3S4000.This design combines the VerilogHDL hardware description language with the schematic diagram union design method, has the very strong versatility and the very good probability. The test result indicates this plan has achieved the anticipated goal.
Keywords :
field programmable gate arrays; hardware description languages; modulators; quadrature phase shift keying; signal processing equipment; FPGA; OQPSK modulator; Spartan3 series; VerilogHDL hardware description language; XC3S4000; Xilinx; carrier recovery process; digital modulation; phase ambiguity; satellite signal simulator channel; schematic diagram union design method; Amplitude modulation; Digital modulation; Field programmable gate arrays; Hardware design languages; Instruments; Optical signal processing; Phase modulation; Quadrature phase shift keying; Satellites; Signal design; Differential Encoding; FGPA; OQPSK;
Conference_Titel :
Electronic Measurement and Instruments, 2007. ICEMI '07. 8th International Conference on
Conference_Location :
Xi´an
Print_ISBN :
978-1-4244-1136-8
Electronic_ISBN :
978-1-4244-1136-8
DOI :
10.1109/ICEMI.2007.4351297
