利用剩余加速度信号获取摆式列车的控制信号。对剩余加速度信号进行滤波处理 ,分析滤波信号的延迟及特性 ,讨论 AR(n)模型阶次数与样本长度的选择。通过对试验数据的分析与处理证明 ,采用 AR(n)模型对滤波后的剩余加速度信号进行预报获得同步的控制信号是可行的 The control signal of tilting train is obtained by using the residual acceleration signal. The residual acceleration signal is filtered, the delay and characteristics of the filtered signal are analyzed, and the choice of AR (n) model order number and sample length is discussed. Through the analysis and processing of experimental data, it is proved that it is feasible to use AR (n) model to predict the filtered residual acceleration signal to obtain synchronous control signal