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The higher-order reassigned local polynomial periodogram and its properties

หน่วยงาน Nanyang Technological University, Singapore

รายละเอียด

ชื่อเรื่อง : The higher-order reassigned local polynomial periodogram and its properties
นักวิจัย : Li, Xiumei , Bi, Guoan , Li, Gang
คำค้น : DRNTU::Engineering::Electrical and electronic engineering
หน่วยงาน : Nanyang Technological University, Singapore
ผู้ร่วมงาน : -
ปีพิมพ์ : 2555
อ้างอิง : Li, X., Bi, G., & Li, G. (2012). The higher-order reassigned local polynomial periodogram and its properties. Signal Processing, 92(12), 2909-2918. , 0165-1684 , http://hdl.handle.net/10220/12056 , http://dx.doi.org/10.1016/j.sigpro.2012.05.023
ที่มา : -
ความเชี่ยวชาญ : -
ความสัมพันธ์ : Signal processing
ขอบเขตของเนื้อหา : -
บทคัดย่อ/คำอธิบาย :

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.

บรรณานุกรม :
Li, Xiumei , Bi, Guoan , Li, Gang . (2555). The higher-order reassigned local polynomial periodogram and its properties.
    กรุงเทพมหานคร : Nanyang Technological University, Singapore.
Li, Xiumei , Bi, Guoan , Li, Gang . 2555. "The higher-order reassigned local polynomial periodogram and its properties".
    กรุงเทพมหานคร : Nanyang Technological University, Singapore.
Li, Xiumei , Bi, Guoan , Li, Gang . "The higher-order reassigned local polynomial periodogram and its properties."
    กรุงเทพมหานคร : Nanyang Technological University, Singapore, 2555. Print.
Li, Xiumei , Bi, Guoan , Li, Gang . The higher-order reassigned local polynomial periodogram and its properties. กรุงเทพมหานคร : Nanyang Technological University, Singapore; 2555.