摘要
研究一种铁路远程通信信号的采集模型并进行仿真分析,通过提取高铁远程单工控制通信信号最佳冲击脉冲,并进行信号处理,实现高速铁路CTCS-3级列车运行控制系统车-地间通信传输。提出一种基于单频包络瞬时值统计的高铁远程单工控制通信信号最佳冲击脉冲提取算法,高铁CTCS-3列车运行控制系统车-地间通信传输模型,对多径信道特征干扰下,对列车控制中心接收到脉冲响应信号进行线性滤波,计算接收端的指向性增益,实现高铁远程单工控制通信信号产生的最佳冲击脉冲响应提取。仿真结果表明,该算法有效模拟地面列控中心接收到的CTCS-3系统的信道混响,提取最佳冲击响应脉冲,有效滤除噪声干扰,提高了CTCS-3高速列车运行控制系统的车-地间通信传输质量。
Arailway communication signal acquisition model and simulation analysis are researched, through the extraction of High-speed Rail remote simplex communication signal optimal impulse control, and signal processing, the communication transmission of high-speed railway train control system of CTCS-3 train ground is realized. Based on the High-speed Rail remote simplex control best communication signal pulse extraction algorithm of single frequency envelope of instantaneous value statistics, High-speed Rail CTCS-3 train control system of train ground communication model, signal extraction is obtained. On the characteristics of interference of multipath channel, the train control center receives the signal of the impulse response of linear filtering, calculation of the receiving end of the directivity gain, and remote control Highspeed Rail simplex optimal impact communication signal generated by the pulse response extraction is realized. The simulation results show that, the algorithm can simulate the channel reverberation of ground column CTCS-3 system effectively,and the optimum extracting impulse response pulse is obtained. It improves the communication transmission quality of CTCS-3 system.
出处
《科技通报》
北大核心
2015年第4期236-238,共3页
Bulletin of Science and Technology
基金
广西高校科学技术研究项目(2013YB357)
关键词
高速铁路
单工控制
冲击脉冲
信号提取
high speed railway
simplex control
impulse
signal extraction
