电光与控制, 2009, 16 (3): 86, 网络出版: 2010-04-01
新型高授时精度时码终端系统设计
Designed of a High Precision Time-Code Terminal System
摘要
为获取高准确度的时间信息和同步频率信号,基于MSP430单片机和FPGA的时统终端系统的设计,实现对IRIG-B码和GPS时间信息的解调,同时提供各种不同频率的同步信号。针对GPS接收机输出定时信号存在的抖动,采用平滑滤波、驯服等技术,系统外同步精度提高到100ns,增强了系统的精度和稳定度。
Abstract
In order to obtain highly accurate time information and synchronization frequency signals,the demodulation to IRIG-B code and GPS time information were realized by using a time-code terminal system designed based on MSP430 system and FPGA. And synchronous signals with different frequency were supplied at the same time. Since the timing signal output from GPS receiver has fluctuation,a filtering algorithm is developed for smoothing. Meanwhile with the taming technology,the synchronous precision can be improved to 100ns. The precision and the stability of the system are enhanced.
赵云峰, 崔明, 吴志勇. 新型高授时精度时码终端系统设计[J]. 电光与控制, 2009, 16(3): 86. ZHAO Yunfeng, CUI Ming, WU Zhiyong. Designed of a High Precision Time-Code Terminal System[J]. Electronics Optics & Control, 2009, 16(3): 86.