Wiener filters in canonical coordinates for transform coding,filtering, and quantizing

  • Authors:
  • L. Scharf;J.K. Thomas

  • Affiliations:
  • Dept. of Electr. & Comput. Eng., Colorado Univ., Boulder, CO;-

  • Venue:
  • IEEE Transactions on Signal Processing
  • Year:
  • 1998

Quantified Score

Hi-index 35.69

Visualization

Abstract

Canonical correlations are used to decompose the Wiener filter into a whitening transform coder, a canonical filter, and a coloring transform decoder. The outputs of the whitening transform coder are called canonical coordinates; these are the coordinates that are reduced in rank and quantized in our finite-precision version of the Gauss-Markov theorem. Canonical correlations are, in fact, cosines of the canonical, angles between a source vector and a measurement vector. They produce new formulas for error covariance, spectral flatness, and entropy