ABSTRACT
Among them, t( )T refers to the logic operation, when t is true, the output is 1. Inflection point defined shoreline as local changes in the direction of the larger point, if {lj} is the inflection point, there are
j j| |1θ θ θ− > ∆+ (2)
Often think that if the direction difference of the two points exceed θ∆ , that has changed the direction partly. The Pearl Harbor, which the image shown in Figure 1, the length of the sequence from n=12647, k=400 sampling points, the results obtained in Figure 3 with a red “O” mark. On the basis of (2)defined rules, take /18θ pi∆ = , extract 97 inflection points, illustrated by the Yellow marked “*”in Figure1.
