DocumentCode :
3207601
Title :
Implementation of High-Dynamic Phase-Locked Loop Based on DSP
Author :
Jin, Xu ; Yongkang, Li ; Jie, Xia ; Rongyan, Zhou
Author_Institution :
Xi´´an Polytech. Univ., Xi´´an, China
Volume :
2
fYear :
2010
fDate :
11-12 May 2010
Firstpage :
494
Lastpage :
497
Abstract :
This paper introduces the basic structure of the ordinary phase-locked loop and analyzes the implementation of phase detector, loop filter and voltage-controlled oscillator. The system function of PLL loop filter shows that the performance of loop filter essentially determines the quality of phase-locked loop. Therefore, this article focuses on the design of loop filter, combined with the application of phase-locked loop in high dynamic GPS receiver, puts forward the realization of a 2-assisted 3-locked loop PLL digital filter in high-dynamic environment in detail, and gives algorithm codes written by C language based on DSP. The simulation results show that the performance of this phase-locked loop PLL has greatly improved than the ordinary, and fully meets the requirements of high dynamic signal tracking.
Keywords :
digital filters; digital phase locked loops; digital signal processing chips; voltage-controlled oscillators; DSP; GPS receiver; PLL digital filter; PLL loop filter; dynamic signal tracking; phase detector; phase locked loop; voltage-controlled oscillator; Digital signal processing; Frequency locked loops; Global Positioning System; Low pass filters; Phase detection; Phase frequency detector; Phase locked loops; Target tracking; Tracking loops; Voltage-controlled oscillators; DSP; PLL; filters; high-dynamic;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Intelligent Computation Technology and Automation (ICICTA), 2010 International Conference on
Conference_Location :
Changsha
Print_ISBN :
978-1-4244-7279-6
Electronic_ISBN :
978-1-4244-7280-2
Type :
conf
DOI :
10.1109/ICICTA.2010.126
Filename :
5523465
Link To Document :
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