Notice of RetractionFirst arrival pickup based on ratio of energy and mutual information

Notice of Retraction

After careful and considered review of the content of this paper by a duly constituted expert committee, this paper has been found to be in violation of IEEE´s Publication Principles.

We hereby retract the content of this paper. Reasonable effort should be made to remove all past references to this paper.

The presenting author of this paper has the option to appeal this decision by contacting TPII@ieee.org.

First arrival detecting of seismic waves plays an important role in research of mineral resource and petroleum resource. Many methods and theories have been put forward so far, such as ratio of energy method, maximal amplitude method, fractal dimension method and neural network. However, these methods have their own disadvantages. Therefore, mutual information in information theory is introduced to the processing of seismic signals, and the paper puts forward a kind of mutual information method. What´s more, this method is improved in order to reduce amount of calculation. The paper combines traditional ratio of energy method and this mutual information method. And it has good results in the paper.