摘要
讨论了国产18信息轨道移频信号和UM71轨道移频信号的时域和频域特性,分析轨道移频信号的载频、低频调制频率及频率偏移等参数特征,用MATLAB软件对国产铁路移频信号进行仿真,确定了其参数特征。
The paper discusses the characteristics of time domain and frequency domain of home-made 18 information track frequency shift signal and UM71 track frequency shift signal, analyze parameter characteristics of carrier frequency, low-frequency modulating frequency and frequency shift of frequency shift signal, and simulates the home-made frequency shift signal by using MATLAB software to determine its parameter characteristics.
出处
《铁路通信信号工程技术》
2006年第3期36-38,共3页
Railway Signalling & Communication Engineering
关键词
轨道电路
移频信号
频谱分析
MATLAB仿真
Track circuit
Frequency shift signal
Spectrum analysis
and MATLAB simulation
