Exact analysis of aliasing effects and non-stationary quantization noise in multirate systems

Author

Petersohn, U. ; Fliege, N.J. ; Unger, H.

Author_Institution

Greifswald Univ., Germany

Volume

iii

fYear

1994

fDate

19-22 Apr 1994

Abstract

In this paper a new analysis tool for multirate systems is presented which allows an exact description of deterministic signals being distorted by aliasing and of stationary or cycle-stationary stochastic signals in multirate systems. This method utilizes a matrix calculus based on the modulation vectors of the involved signals. Two examples are given, namely a cascade of multirate filters and a digital subscriber line audio-processing circuit (SLAC), which demonstrate the essential performance characteristics of the proposed analysis method: separation of baseband and alias components, separation of stationary and non-stationary parts of signals and the resolution of all these components in the time- and frequency domain

Keywords

cascade networks; digital filters; matrix algebra; quantisation (signal); stochastic processes; subscriber loops; time-frequency analysis; SLAC; aliasing effects; baseband; cascade; cycle-stationary stochastic signals; deterministic signals; digital subscriber line audio-processing circuit; frequency domain; matrix calculus; modulation vectors; multirate filters; multirate systems; nonstationary quantization noise; performance characteristics; resolution; time domain; Baseband; Calculus; Circuits; DSL; Digital filters; Distortion; Performance analysis; Quantization; Signal analysis; Stochastic systems;

fLanguage

English

Publisher

ieee

Conference_Titel

Acoustics, Speech, and Signal Processing, 1994. ICASSP-94., 1994 IEEE International Conference on

Conference_Location

Adelaide, SA

ISSN

1520-6149

Print_ISBN

0-7803-1775-0

Type

conf

DOI

10.1109/ICASSP.1994.390062

Filename

390062