Study on FSK Signal Demodulation Based on Chirp-Z Transform

摘要：

　　The Frequency-Shift Keying (FSK) signal is frequently used in track circuits because of the strong ability of resistance interference.Symbol rate is one of the important signal parameters for safety of railway.The paper propose a algorithm of high precise detectation of FSK signal using Chirp-Z transform; Theoretically gives the detailed explanation to the major technique,and has carried on the Matlab simulation,The simulation result indicates this method during the enhancement is shifted signal examination precision,reduced the computation order of complexity.

关键词： track circuit Chirp-Z transform FSK signal Matlab

作者: Xia Jianghua Guo Jing Wang Xiao Ming

作者单位: School of Information Science and TechnologySouthwest Jiao tong University Chengdu.China

会议类型: 国际会议

会议名称: 2012 2nd international Conference on Materials Science and Information Technology(2012第二届材料科学与信息技术国际会议)(MSIT2012)

会议地点: 西安

会议语种:英文

页码: 827-830

在线出版日期: 2012-08-24（万方平台首次上网日期，不代表论文的发表时间）