The pulse transfer function matrix of linear discrete-time multivariable systems is often non-diagonal. This shows that there is coupling between the input and output of systems.

线性离散时间多变量系统的脉冲传递矩阵往往不是对角线形的矩阵，这表明系统的输入输出存在耦合。

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Based on Intelligent Transport Systems, the paper provides deadheading in minimum time of public transfer under the condition of traffic information. The paper developed a Linear Programming model.

基于智能交通运输系统的背景，研究提供公共交通信息的条件下公交换乘时间最短的调度问题，提出线性规划模型，并用界例进行了演示。

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