系统辨识的大作业，该word文档中包含对象描述、分析、测试、辨识结果对比、附录程序。对比了工程法辨识、最小二乘辨识方法的差异。以供后来者学习。编程环境为matlab.-Large operating system identification, word document contains the object descr iption, analysis, testing, identification results contrast Appendix procedures. Compari