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 ! f, t* F# B+ H; [% z/ q错误使用 place (第 171 行): c2 _2 k( @2 X* ]1 z6 u. O9 |3 I
The "place" command could not place the poles at the specified locations. Probable causes include:' N6 t# K4 Q M' C" i5 K0 z4 |5 i
* (A,B) is nearly uncontrollable5 K7 |' z' b1 q1 T# k
* The specified locations are too close to each other.$ A: j4 [3 t9 i1 C3 k; V
这是为什么啊?6 [/ ?' l, {4 Z