Concept of LPC

Given a digital system, can the value of any sample be predicted by taking a linear combination of the previous $ N$ samples?

Stated mathematically, can a set of coefficients, $ a_k$, be determined such that

$\displaystyle y(n) = a_1y(n-1) + a_2y(n-2) + ... + a_Ny(n-N).$    

That is, can a signal be represented as coefficients of an all-pole (only feedback terms) IIR filter.

If yes, then the coefficients and the first $ N$ samples would completely determine the remainder of the signal, because the rest of the samples can be calculated by the above equation.


``Music 270a: Signal Analysis'' by Tamara Smyth, Department of Music, University of California, San Diego.
Download PDF version (analysis.pdf)
Download compressed PostScript version (analysis.ps.gz)
Download PDF `4 up' version (analysis_4up.pdf)
Download compressed PostScript `4 up' version (analysis_4up.ps.gz)

Copyright © 2019-12-02 by Tamara Smyth.
Please email errata, comments, and suggestions to Tamara Smyth<trsmyth@ucsd.edu>