Implementation of high-dynamic phase-locked loop based on DSP

摘要：

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 fdter, 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 phaselocked loop PLL has greatly improved than the ordinary, and fully meets the requirements of high dynamic signal tracking.

关键词： PLL filters DSP high-dynamic

作者: Xu Jin Li Yongkang Xia Jie Zhou Rongyan

作者单位: Xian Polytechnic University, Xian,Shaanxi, P.R.China

会议类型: 国际会议

会议名称: 2010 International Conference on Intelligent Computation Technology and Automation(2010 智能计算技术与自动化国际会议 ICICTA 2010)

会议地点: 长沙

会议语种:英文

页码: 1664-1667

在线出版日期: 2010-05-11（万方平台首次上网日期，不代表论文的发表时间）