Title :
Determining the optimal coefficients of high-order error feedback
Author :
Laakso, Timo ; Hartimo, Iiro
Author_Institution :
Lab. of Signal Process. & Comput. Technol., Helsinki Univ. of Technol., Espoo, Finland
Abstract :
General formulas for the coefficients of Nth-order optimal error feedback (error-spectrum shaping) are derived. It is shown that the optimal error feedback (EF) can be considered to be a special case of Wiener filtering. A fast and accurate algorithm to obtain the optimal coefficients is presented. Explicit formulas for first-, second-, third-, and fourth-order optimal EF coefficients are given
Keywords :
feedback; filtering and prediction theory; signal processing; Nth-order optimal error feedback coefficients; Wiener filtering; accurate algorithm; error-spectrum shaping; explicit formulas; fast algorithm; first-order optimal EF coefficients; fourth-order optimal EF coefficients; high-order error feedback; optimal coefficients; second-order optimal EF coefficients; third-order optimal EF coefficients; Computer errors; Feedback; Laboratories; Noise generators; Noise reduction; Noise shaping; Quantization; Symmetric matrices; Transfer functions; Wiener filter;
Conference_Titel :
Circuits and Systems, 1989., IEEE International Symposium on
Conference_Location :
Portland, OR
DOI :
10.1109/ISCAS.1989.100454
