We consider an optimal control problem linear systems affected by external persistent disturbances with known dynamic characteristics but unknown initial conditions.
研究具有已知动态特性但未知初始条件的持续外界扰动作用下线性系统的前馈-反馈最优控制问题。
2
Objective To study the characteristics of the labor course and perinatal prognosis of fetal persistent occipital posterior position (POPP).
目的探讨胎儿持续性枕后位的相关因素、产程特点及分娩预后。
3
Objective To explore the echocardiographic characteristics of persistent truncus arteriosus and evaluate the value of echocardiography in clinical imaging diagnosis.