5HUANG N E,SHEN Z,LONG S R.A new of nonlinear water waves:the Hilbert spectrum[J].Annu Rev Fluid Mech,1999,31:417-457. 被引量:1
6PETROS M,JAMES F K,THOMAS F Q.Energy separation in signal modulations with application to speech analysis[J].IEEE Transaction on Signal Processing,1993,41(10):3024-3051. 被引量:1