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This paper describes a method to design adaptive attitude controller of autonomous underwater vehicle (AUV). The main purpose of this design is to adapt to the error caused by coupling between different controls channels as time-varying errors. In this paper, system identification method is not used to get the dynamic model directly, but to simplify the hydrodynamic model and quantize the effect caused...
This paper focuses on the identify capability of non-cooperative static ship in narrowband airborne radar. The three-dimensional micro-motion equations included yaw, pitch and row of static ship are built based on target's scatter point model firstly. Then effects to real-time distance between radar and ship's scatter point are analyzed. The echo of single frequency continuous wave radar is obtained...
Instantaneous chip thickness during three typical end milling processes is analyzed in this paper. The tooth trajectory of a milling cutter is a combination of two motions, one is the rotation of the cutter spindle and the other is the feed motion of the cutter relative to work-piece. For simplification traditional chip thickness models always simplify the tooth trajectory as a circle to get approximate...
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