自动控制方法中的状态空间模型参数降秩数学算法，分别为

SVD-based method；

Krylov-based Order Reduction－－Lanczos algorithm；

Krylov-based Order Reduction－－Modified Lanczos algorithm；

Krylov-based Order Reduction－－The Arnoldi-algorithm；

-Model Order Reduction Algorithms for Statespace-Model of Automating Systems-

Follows are the algorithms:

SVD-based method；

Krylov-based Order Reduction－－Lanczos algorithm；

Krylov-based Order Reduction－－Modified Lanczos algorithm；

Krylov-based Order Reduction－－The Arnoldi-algorithm；