摘要
为提高电气化区段25周交流计数电码式机车信号的可靠性,本文从理论上计算、分析了25周交流计数电码信号的频谱,包括不同周期、不同码型的频谱,并通过对现场实际信号的记录,做频谱分析,给出了实际信号的各种典型频谱图.本文还计算了不同的频宽内25周交流计数电码信号能量百分比.
This paper presents theoretical analysis of the frequency spectrum of ideal 25Hz AC counting code signal and measurement of the frequency spectrum of the actual 25Hz AC counting code signal by a signal analyzer. The 25Hz AC counting code cab signalling systems are used in electrified railways, but their performances are not satisfactory. The study in this paper will give support to the improvement of the 25Hz AC counting code cab signalling system.
出处
《北方交通大学学报》
CSCD
北大核心
1992年第3期23-30,共8页
Journal of Northern Jiaotong University
关键词
机车
信号分析
交流计数电码
铁路
caby signal
signal analysis
AC counting code automatic block
