Grey Model Based on Descending Sequence and Its Application

This paper introduced linear generation into the original descending sequence through the inverse zeroing starting point operator. In order to solve the translation, it puts forward a function in Matlab and develops software. Besides that, this paper showed that GM(1,1) model based on the inverse zeroing starting point operator doesn't magnify the reduction error. The example showed the actual operation of the model, proving its effectiveness. The model expands the grey model group of descending sequence, and eliminates the unreasonable model error when using GM(1,1) model to fit descending sequence because the accumulating sequence is increasing while the original sequence is descending.