A circular zone counting method of identifying a Duffing oscillator state transition and determining the critical value in weak signal detection*
Li Meng-Ping, Xu Xue-Mei†, Yang Bing-Chu, Ding Jia-Feng
       
Comparision between variations of Numpp and MLE with f (0, 1). (a) Numpp varying with f , radius of the circular zone is R = 0.8. (b) MLE varying with f .