This paper discusses the problem of observer maneuver for bearings-only localization and tracking, presents the optimization of observer trajectories to a fixed target, and gives the observer maneuver measure for the engineering application to constant-velocity rectilinear-motion.

Concerning on the problem of obsever maneuvering trajectory and target position tracking precision in bearing-only target motion analysis for single station,and based on target position tracking lower limit CRLB,the Geometric Dilution of Precision(GDOP) is proposed to be the optimal performance indicator.

Improved SMITH predictive control with disturbance observer;

This paper combines zero phase error tacking controller and disturbance observer and proposes the robust designing method suitable for high performance CNC system.

In view of the characteristics of nonlinearity and time-variance in a two-tank liquid level regulation system,a fuzzy self-adaptive controller is designed with a disturbance observer according to the modern control theory.

In order to solve the questions of multiple fault modes of missile system,a diagnosis method based on dynamic observer is proposed.

In order to solve the multiple fault modes of missile system,the dynamic observer is proposed.

On the basic of that,the strategy of double-loop multiple self-tuning control in the speed loop was brought forward,and then,the load disturbance observer and single neuron self-tuning PID controller were designed.