@article {OA1503,
	title = {On the HHT, its problems, and some solutions},
	journal = {Mechanical Systems and Signal Processing},
	volume = {22},
	number = {6},
	year = {2008},
	note = {<p>Special Issue: Mechatronics</p>
},
	month = {August},
	pages = {1374{\textendash}1394},
	publisher = {Elsevier},
	abstract = {<p>The empirical mode decomposition (EMD) is reviewed and some questions related to its effective performance are discussed. Its interpretation in terms of AM?FM modulation is done. Solutions for its drawbacks are proposed. Numerical simulations are carried out to empirically evaluate the proposed modified EMD.</p>
},
	url = {http://oa.uninova.pt/1503/},
	author = {Rato, R.T. and Manuel Ortigueira and Arnaldo Batista}
}
