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|Title:||The higher-order reassigned local polynomial periodogram and its properties||Authors:||Li, Xiumei
|Keywords:||DRNTU::Engineering::Electrical and electronic engineering||Issue Date:||2012||Source:||Li, X., Bi, G., & Li, G. (2012). The higher-order reassigned local polynomial periodogram and its properties. Signal Processing, 92(12), 2909-2918.||Series/Report no.:||Signal processing||Abstract:||Recently the second order reassigned local polynomial periodogram (LPP) has been reported to show some desirable properties for signal representation in the time–frequency domain. In this paper, the higher-order reassigned LPPs and their properties are discussed. With the definition of the modified Wigner–Ville distribution, the reassignment operators of the third, fourth and the arbitrary higher-order reassigned LPP are defined and derived. It is shown that the higher-order reassigned LPPs share the properties with the second order reassigned LPP, such as the non-negativity, non-bilinearity, time and frequency shifts invariance, time-scaling property and energy conservation. The property of the higher-order reassigned LPP to perfectly localize the corresponding order polynomial phase signals is also investigated to obtain improved signal concentration in the time–frequency domain.||URI:||https://hdl.handle.net/10356/97286
|ISSN:||0165-1684||DOI:||http://dx.doi.org/10.1016/j.sigpro.2012.05.023||Rights:||© 2012 Elsevier B.V.||Fulltext Permission:||none||Fulltext Availability:||No Fulltext|
|Appears in Collections:||EEE Journal Articles|
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