Research Article
Refinement Methods for State Estimation via Sylvester-Observer Equation
Table 3
Implementation of new Iterative methods with 2 iterations and the Hessenberg-Schur method for solving the Sylvester equation.
| | Hessenberg-Schur method | Block refinement | Weighted block refinement | Cond () | | Error | Time | Error | Time | Error | Time | |
| 400 | |
4.84
| |
3.58
| |
1.81
| | 800 | |
61.89
| |
48.24
| |
32.11
| | 1200 |
11.01
|
139.54
|
0.043
|
96.25
| |
71.43
| | 1600 |
26.29
|
208.24
|
11.01
|
134.32
| |
112.55
| | 2000 |
71.98
|
347.14
|
39.91
|
242.11
| |
194.78
| |
|
|