Title :
Human factors in the design of a signal processing computer package
Author_Institution :
Dept. of Electr. Eng., Univ. of the Witwatersrand, Johannesburg, South Africa
Abstract :
The author examines the requirements for computer support for filter design, filter evaluation, digital filtering, and FFT-based (fast-Fourier-transform-based) signal processing. Essential operations, data manipulations, and operating sequences are identified by considering the modus operandi of an experienced practitioner over a range of problems. An operating model analogous to a scientific calculator is established. Data-structure and data-flow models are built. The principal architectural features of the package are described. Special features are a high degree of openness, an extensive range of basic operations, an environment allowing low- or high-level operation, and a comprehensive set of s- and z-plane linear systems operations
Keywords :
computerised signal processing; digital filters; electronic calculators; fast Fourier transforms; human factors; FFT-based signal processing; computer package design; data manipulations; data-flow models; data-structure models; digital filtering; fast-Fourier-transform-based; filter design; filter evaluation; human factors; operating model; operating sequences; principal architectural features; scientific calculator; Band pass filters; Digital filters; Filtering; Finite impulse response filter; Frequency response; Human factors; IIR filters; Packaging; Signal design; Signal processing;
Conference_Titel :
Communications and Signal Processing, 1989. COMSIG 1989. Proceedings., Southern African Conference on
Conference_Location :
Stellenbosch
Print_ISBN :
0-87942-713-2
DOI :
10.1109/COMSIG.1989.129021
