On the sensitivity of the recursive filter with arbitrary order predictor in DPCM system

Abstract

Sensitivity analysis of the recursive filter in a DPCM system, with arbitrary order predictor, is presented in this paper. Relations for sensitivity, related to predictor coefficients, are derived both in cases of stable and unstable systems. In this way, we presented new information which can improve design of the system in the sense of better performances via parameters (coefficient) adjustment. Given relations were verified for the case of real system in three different configurations: with the second, third and fifth order predictors.

Keywords

• parametric sensitivity
• transfer function
• differential pulse code modulation
• predictor coefficients