Title :
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
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;
Conference_Titel :
Acoustics, Speech, and Signal Processing, 1994. ICASSP-94., 1994 IEEE International Conference on
Conference_Location :
Adelaide, SA
Print_ISBN :
0-7803-1775-0
DOI :
10.1109/ICASSP.1994.390062
