列车测速测距方式的探讨

Study on the Way of Distance and Speed Measurement for Train

分析了各种列车测速测距方式的基本原理、特点及应用前景，提出了未来列车测速测距系统的发展趋势和方向。

The basic principles,properties and application prospects of the ways to measure the speed and location of a train are analysed,and the development trends of speed and location measurement system are also raised in this paper.