摘要
ZPW-2000A系列低频信号丰富、载频种类多,专用测试机具价格贵。因此,提出将录音技术用于铁路频率信号测试领域,建立标准频率信号资源库,替代低频信号源。以ZPW-2000A、UM71系列设备的检测为例,介绍标准频率信号资源库的原理、制作和应用。
ZPW-2000A series track circuit is characteristic of rich low frequency signals and multiple carrier frequencies, and its special testing equipment is quite expensive. We tried to adopt recording technology in railway signal test and establish a standard signal frequency resources library to replace low frequency signal sources. Taking the detection ZPW-2000A and UM71 series device as example, we de- scribed the principles, establishment and application of standard frequency signal resources library.
出处
《铁道通信信号》
2012年第7期66-69,共4页
Railway Signalling & Communication
关键词
标准频率信号资源库
声卡
复合信号
Standard frequency signal resource
Audio card
Composite signal
