本文提出一种基于双天线雷达的列车测速装置,其测速方法是基于多普勒回波信号频率解调直接获取列车实时速度的原理。此方法不从车轮转速中获取信息,因此能有效避免车轮空转、滑行等产生的测速误差,能够用于全天候及异常路轨环境,且由于采用非接触式直接测量,使用寿命较传统产品有较大提高,通常为3至5年。此外,双天线雷达测速仪采用双通 In this paper, a dual-antenna radar-based train speed measurement device is proposed. The speed measurement method is based on the principle of obtaining the real-time speed of train directly based on the frequency demodulation of Doppler echo signals. This method does not get information from the wheel speed, so it can effectively avoid the wheel speed, taxiing and other speed error can be used for all-weather and abnormal rail environment, and because of non-contact direct measurement, the service life is greater than the traditional products Increase, usually 3 to 5 years. In addition, dual antenna radar velocimeter dual pass