Improvement on grey T's correlation degree

On the basis of the analysis of the existing grey correlation degree and grey T's correlation degree,an improved model of grey T's correlation degree is putted forward.The improved one can reflect the positive and negative relation of sequence,possesses symmetry property,unique property,comparable property and preserving-order property after non-dimensionalization.Last an example is given to illustrate that the improved one can more really reflect the correlation degree of sequence and the result of grey correlation analysis by this method is more scientific than before and is easier to calculate on the computer.