The adaptive backstepping sliding mode control is proposed for the surge motion control problem of an autonomous underwater vehicle(AUV) affected by previously unknown constant current which is not properly dealt with in the previous researches.

With external disturbances and uncertain parameters,an adaptive backstepping sliding mode control scheme was developed.

Presently,forward modeling is widely applied,while inverse modeling is still in research and several inverse modeling systems have been developed.

By analyzing apatite fission track data and inverse modeling,the thermal history of relevant rock assemblage has been studied qualitatively to semi-quantitatively in Ordos basin.

A Backward trajectory inversion model was established for estimating methane emission over Beijing area, with in situ data of methane measurement.

Application of geological model inversion technique to prediction of subtle reservoir

Using the deformation model inversion theory, combining the model datum design with the se-quential optimum design for model discrimination .

This paper analyze the development of inversion technology, and has thefurther study on Recursive Inversion, Model Inversion, Geostatistics Inversion,discusses some problems on these inversion technology, and compares theadvantages and dis.