开环系统可观性和可控性矩阵满秩,配置极点时尝试多组极点,总是出现' p* [" f* l1 D0 B' v9 g2 I
错误使用 place (第 171 行)4 A2 p1 A: Y1 K- D1 h7 z! R4 h; e3 D6 v
The "place" command could not place the poles at the specified locations. Probable causes include:/ S+ Y- Q& X3 c J* a
* (A,B) is nearly uncontrollable 8 k( C* Z o( g% v5 W% L" _* The specified locations are too close to each other.$ R. F7 a, f' ]& D4 r8 E& n
这是为什么啊?- f, H/ x O3 Z% D" B1 z! b