DocumentCode :
2162026
Title :
Product Cubic Phase Function Algorithm for Estimating the Instantaneous Frequency Rate of Multicomponent Two-Dimensional Chirp Signals
Author :
Zhang, Kunlei ; Wang, Shuxun ; Cao, Fan
Volume :
5
fYear :
2008
fDate :
27-30 May 2008
Firstpage :
498
Lastpage :
502
Abstract :
The problem of concern here is instantaneous frequency rate (IFR) estimation of multicomponent two-dimensional (2-D) chirp signals. First, the 2-D cubic phase function (CPF) is defined. However, when the 2-D CPF is used to dealing with multicomponent 2-D chirp signals, the spurious peaks arise due to the existing of cross term. Then the definition of 2-D product cubic phase function (PCPF) is given by multiplying the corresponding 2-D CPF slices. Using 2-D PCPF, the spurious peaks are suppressed and IFR of 2-D chirp signals under low SNR can be estimated accurately. Simulations are provided to verify the theoretical claims.
Keywords :
Chirp; Frequency estimation; Multidimensional signal processing; Multiple signal classification; Parameter estimation; Phase estimation; Polynomials; Signal processing; Signal processing algorithms; Two dimensional displays; Parameter estimation; Signal processing; Two-dimensional chirp signal; phase function;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Image and Signal Processing, 2008. CISP '08. Congress on
Conference_Location :
Sanya, China
Print_ISBN :
978-0-7695-3119-9
Type :
conf
DOI :
10.1109/CISP.2008.352
Filename :
4566878
Link To Document :
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