Title :
Implementation of a QPSK system on FPGA
Author :
Popescu, S.O. ; Gontean, A.S. ; Ianchis, D.
Author_Institution :
Appl. Electron. Dept., Politeh. Univ. of Timisoara, Timisoara, Romania
Abstract :
The paper presents the design of a QPSK digital communication system and its implementation on FPGAs. The simulations of the system were made in Matlab/Simulink environment and System Generator, a tool used for FPGA designs. The system is made up of two Spartan 3E Starter Kit boards. The first is implemented to comport as a modulator and the second as a demodulator. The VHDL hardware description language was used to design each model. The local clock oscillator on the board operates at 50Mhz and used at 31,250 kHz for the carrier. The operating results were compared with the theorethical ones and were also evaluated by measurements.
Keywords :
demodulators; digital communication; field programmable gate arrays; hardware description languages; mathematics computing; oscillators; quadrature phase shift keying; FPGA designs; Matlab-Simulink environment; QPSK digital communication system; VHDL hardware description language; demodulator; frequency 31250 kHz; frequency 50 MHz; local clock oscillator; spartan 3E starter kit boards; system generator; Demodulation; Digital communication; Field programmable gate arrays; Generators; Noise; Phase shift keying;
Conference_Titel :
Intelligent Systems and Informatics (SISY), 2011 IEEE 9th International Symposium on
Conference_Location :
Subotica
Print_ISBN :
978-1-4577-1975-2
DOI :
10.1109/SISY.2011.6034354
