Frequency and biphase estimation of quadratically coupled sinusoids using cumulant projections

Author

Sherman, D. ; Zoltowski, M.

Author_Institution

Sch. of Electr. Eng., Purdue Univ., W. Lafayette, IN, USA

fYear

1990

fDate

3-6 Apr 1990

Firstpage

2373

Abstract

Summations of cumulants (projections) along parallel lines in the cumulant domain are formed. The projection procedure first relies on a change of variables through rotation of the cumulant axes. The cumulants are effectively decoupled. Summing the cumulants reduced the dimensionality of the system from six cumulant terms to one term. An eigenstructure-based method for frequency and biphase estimation is offered as an alternative to Fourier schemes on the slice after biphases have been converted to estimable amplitudes by forming symmetric and skew-symmetric projections

Keywords

parameter estimation; signal processing; spectral analysis; biphase estimation; cumulant projections; eigenstructure-based method; frequency estimation; quadratically coupled sinusoids; skew-symmetric projections; spectral analysis; symmetric projections; Amplitude estimation; Couplings; Equations; Fourier transforms; Frequency conversion; Frequency estimation; Linear systems; Parametric statistics; Spectral analysis; USA Councils;

fLanguage

English

Publisher

ieee

Conference_Titel

Acoustics, Speech, and Signal Processing, 1990. ICASSP-90., 1990 International Conference on

Conference_Location

Albuquerque, NM

ISSN

1520-6149

Type

conf

DOI

10.1109/ICASSP.1990.116057

Filename

116057