系统辨识作业，仿真比较OE模型 ARMAX模型 和ARX模型的便是效果，内涵ppt。-System identification operation, the simulation model compared OE and ARX model ARMAX model is the effect, meaning ppt.

Here,we want to estimate a system with ARX and ARMAX. the euation of system is : 2(s+1)/s^2+2s+2 so first, we find the discrete equation that sampling frequency is 100ms. Here,in our sample,na=nb=2,nc=1 also ,this algorithm find the poles and

本例程为系统辨识中的增广最小二乘法的matlab实现，用于解决ARMAX模型的辨识。-This routine as augmented least-square method in the identification of the system of matlab, is used to solve the ARMAX model identification.