A development of the high-capacity data transmission system through rails using spread spectrum communication

摘要

This paper describes the high-capacity data transmission system for ATC (Automatic Train Control) through rails. A present ATC system is very high safety, but this system has a problem that the high-capacity data transmission is very hard. It is because rails, the object of the data transmission, have some differences with a general communication system, such as the rail noise. Therefore, we develop the high-capacity data transmission system using spread spectrum communication in consideration of the characteristic of rails. And we verified to be able to take about 2000bps, with the result that we carried out computer simulations changed the transmission speed about this system. In addition, we investigated about a baseband SS in order to simplify the hardware-izing. We report with the method of a synchronous acquisition.