Open AccessTime‐domain Approach to the Performance Analysis of GPS Phase Locked Loop
Author(s) -
Zhou Hongwei,
Jin Tian,
Lyu Fangyao,
Wang Lihua
Publication year - 2017
Publication title -
chinese journal of electronics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.267
H-Index - 25
eISSN - 2075-5597
pISSN - 1022-4653
DOI - 10.1049/cje.2017.01.018
Subject(s) - loop (graph theory) , global positioning system , phase (matter) , computer science , control theory (sociology) , phase locked loop , time domain , environmental science , mathematics , physics , telecommunications , control (management) , artificial intelligence , computer vision , quantum mechanics , combinatorics
The frequency‐domain approach is widely used in Global positioning system (GPS) receiver tracking loop performance analysis. In realization, the Digital phase‐locked loop (DPLL) is used. There is difference between phase errors by traditional frequency‐domain analysis and real receiver output because of discretization errors. In order to get more precise result, this paper uses time‐domain difference equations to analyze the phase tracking errors under the influence of thermal noise and the dynamic stress on different orders of PLL. The simulation results show that the traditional frequency‐domain approach has phase error deviation under long integration time ( i.e. , more than 10ms), while the time‐domain approach has good accordance with receiver simulation output. Thus, the proposed time‐domain approach can provide more precise solution for PLL performance analysis.