Title :
Simulation of nonlinear models of QPSK costas loop in MatLab Simulink
Author :
Kuznetsov, N.V. ; Kuznetsova, O.A. ; Leonov, G.A. ; Neittaanmaki, Pekka ; Yuldashev, M.V. ; Yuldashev, R.V.
Author_Institution :
Fac. of Math. & Mech., St.-Petersburg State Univ., St. Petersburg, Russia
Abstract :
Nowadays simplified mathematical models and numerical simulation are widely used for the analysis of QPSK Costas loop. In the work it is shown that the use of simplified mathematical models and the application of non-rigorous methods of analysis may lead to wrong conclusions concerning the operability of real model of QPSK Costas loop.
Keywords :
phase locked loops; quadrature phase shift keying; MatLab Simulink; QPSK Costas loop; mathematical model; nonlinear model simulation; nonrigorous method; phase-locked loop; quadrature phase shift keying; Analytical models; Control systems; MATLAB; Mathematical model; Phase shift keying; Voltage-controlled oscillators;
Conference_Titel :
Ultra Modern Telecommunications and Control Systems and Workshops (ICUMT), 2014 6th International Congress on
Conference_Location :
St. Petersburg
DOI :
10.1109/ICUMT.2014.7002080
