supported by the National Natural Science Foundation of China(61261046,61362038);the Natural Science Foundation of Jiangxi Province(20142BAB207006,20151BAB207013);the Science and Technology Project of Provincial Education Department of Jiangxi Province(GJJ14738,GJJ14739);the Research Foundation of Health Department of Jiangxi Province(20175561);the Science and Technology Project of Jiujiang University(2016KJ001,2016KJ002)
The machinery fault signal is a typical non-Gaussian and non-stationary process. The fault signal can be described by SaS distribution model because of the presence of impulses.Time-frequency distribution is a useful ...