Title :
Fourier analysis using spectral observers
Author_Institution :
California State University, Long Beach, CA
Abstract :
New techniques for Fourier spectral analysis are reported, for which ongoing spectral estimates are generated in real time. The algorithms are recursive, expressable in state variable form, and involve real number computations. The ability of these spectral observers to perform one-step-per-sample updating is demonstrated with numerical examples.
Keywords :
Differential equations; Discrete Fourier transforms; Fast Fourier transforms; Fourier transforms; Frequency; Observers; Polynomials; Power harmonic filters; Sampling methods; Spectral analysis;
Journal_Title :
Proceedings of the IEEE
DOI :
10.1109/PROC.1980.11627
