General results for nonlinear observers 非线性状态估计的改进
A slightly modified strong tracking filtering algorithm is used to estimate the reduced - order state vector , which is then used to estimate the nonlinear state function 采用一种稍加修改的强跟踪滤波算法估计降阶状态向量,然后利用降阶状态向量估计非线性状态函数。
The afo is an adaptive observer with strong tracking properties , which can accurately estimate the unknown time - varying parameters besides nonlinear state function 该观测器算法是一种具有强跟踪性质的自适应观测器,能在估计非线性状态函数的同时准确估计未知时变参数。
The character of some piles , maybe all the piles , in piled raft foundation is nonlinear , so elastic theory can not be used to calculate the settlement of piled raft foundation 沉降控制复合桩基工作时部分或全部桩达到一定程度的非线性状态,因此不宜采用弹性理论来计算基础的沉降。
Under assumptions , nonlinear state feedback control laws are constructed , which ensure that outputs of the closed - loop system are unaffected by disturbances and independent of time - delays 在一定条件下,通过构造非线性状态反馈控制规律,确保闭环系统的输出不受干扰影响而且是时滞无关的。