Real time cascade adaptive notch filter scheme for sinusoidal parameter estimation
Journal
Signal Processing
Journal Volume
39
Journal Issue
44563
Pages
117-130
Date Issued
1994
Date
1994
Author(s)
Tseng, Chien-Cheng
Abstract
In this paper, a real-time cascade adaptive notch filter scheme for sinusoidal parameter estimation is proposed. The second order recursive maximum likelihood algorithm is used to estimate the sinusoidal frequencies. It is suitable for real-time operations because only 13 multiplications, 14 additions and 1 division are required in each iteration. After adaptive notch filters have converged, the simplified recursive least square algorithm is then used to compute the amplitudes and phases of sinusoids quickly. The error surface analysis indicates that our scheme is unimodal and results in guaranteed convergence. Extensive computer simulations are also included to demonstrate its performance. © 1994.
Subjects
Adaptive notch filter; Sinusoidal parameter estimation
Other Subjects
Adaptive systems; Algorithms; Cascade connections; Computer simulation; Convergence of numerical methods; Digital arithmetic; Error analysis; Iterative methods; Least squares approximations; Parameter estimation; Real time systems; Recursive functions; Adaptive notch filter; Error surface analysis; Sinusoidal parameter estimation; Notch filters
Type
journal article
File(s)![Thumbnail Image]()
Loading...
Name
13.pdf
Size
708.13 KB
Format
Adobe PDF
Checksum
(MD5):97e5b01b75837858928d4754140224a4