Wavelet Fractal Technology and Its Application to Aeroengine Fault Diagnoisis
Chao Chen · Journal of Projectiles.Rockets.Missiles and Guidance · 2006
Wavelet fractal is proposed according to the unity that possesses multiscale decompositions and self similarity in both wavelet transform and fractal theory.In order to overcome disadvantage of the general method calculating box dimension of discrete signals.to discover discrete signals by rectangle net instead of square net.Successful application has been achieved to detect several typical fault of acroengine.The result show that wavelet fractal can provide a new ef- fective technology to reveal nonstationary fault of aeroengine.