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本文用系统辨识的方法建立发动机调速系统的等效线性模型,辨识实验中所采用的输入信号是伪随机二进制序列,参数估计中所采用的方法是最小二乘递推估计算法,模型阶次的检验是采用了F检验方法。辨识所得到的等效的线性模型是有两个比例环节和一个积分环节的闭环系统。
In this paper, an equivalent linear model of the engine speed control system is established by using the method of system identification. The input signal used in the identification experiment is a pseudo-random binary sequence. The method used in parameter estimation is the least squares recursive estimation algorithm, The test is the use of F test method. The resulting equivalent linear model is a closed-loop system with two proportional and one integral links.