TRAIN POSITION DETECTION AND TRACK-TRAIN DATA TRANSMISSION USING AUDIO FREQUENCY TRACK CIRCUITS.

被引：0

作者：

Hill, R.J. ^{[1
]}

机构：

[1] Cambridge Univ, Cambridge, Engl, Cambridge Univ, Cambridge, Engl

来源：

Journal of Electrical and Electronics Engineering, Australia | 1985年 / 5卷 / 04期

关键词：

RAILROAD SIGNALS AND SIGNALING - Electronic Equipment;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

Measurements of the electrical impedance of railway track have been made and the corresponding distributed transmission line components evaluated for wet and dry environmental conditions. Audtio frequency (blockjointless) track circuits using various terminations are reviewed and their applicability in terms of safety, shunting sensitivity and resolution is assessed. Amplitude and frequency shift keying techniques for modulating the track circuit carrier frequency are evaluated.

引用

页码：267 / 277