基于改进模糊估计的高铁移动通信方法  

Based on Improved Fuzzy Estimation Method of High-speed Mobile Communication

作　　者：朱亚东[1] 

机构地区：[1]江苏联合职业技术学院南京工程分院,南京211135

出　　处：《计算机测量与控制》2014年第1期282-284,共3页Computer Measurement &Control

摘　　要：传统的移动通信控制方法不能有效解决列车高速过程中,由于快速跨越不同通信区域造成的多普勒频移干扰问题,无法确保高速移动网络通信的稳定性;提出一种基于模糊估计和数据通信误差修正方法,通过分析多普勒频移对通信信号的干扰特征,运用模糊估计的原理调整信号传输特征,及时过滤通信信道中的多普勒频率干扰,再运用数据通信误差修正模型对错误数据进行修正,确保高速网络通信数据传输的稳定性;仿真测试表明,该方法下的高速列车在跨越不同通信区域时,具有较高的阶跃响应速度和较低的稳态误差,具有较高的应用价值。Traditional mobile communication in the process of the control method can effectively solve the high speed train, due to the rapid communication across different regions caused by doppler frequency shift jamming problem, unable to ensure the stability of high speed mobile network communication. In this paper, a error correction method based on fuzzy estimation and data communication, through the analysis of doppler frequency shift signal interference characteristics, using the principle of fuzzy estimation to calibrate the signal trans- mission characteristics, filtering in time doppler frequency interference of communication channel, then use the data communication error correction model to modify wrong data, ensure the stability of high--speed network communication data transmission. Simulation tests show that the method of high--speed train in communication across different areas, has the high step response speed and low steady state error, and has higher application value.

关 键 词：高速列车网络通信 稳定性控制 模糊估计控制器 误差修正 

分 类 号：TP311[自动化与计算机技术—计算机软件与理论]