The response of the transfer function of an alpha-beta filter to various measurement models

Author

Gray, John E. ; Murray, William

Author_Institution

Naval Surface Warfare Center, Dahlgren, VA, USA

fYear

1991

fDate

10-12 Mar 1991

Firstpage

389

Lastpage

393

Abstract

The response characteristics of the alpha-beta filter are used to quantify the filter´s performance against different measurement models representing a target´s trajectory. The transfer functions for an alpha-beta filter are used to derive closed form (solutions) expressions for smoothed position and velocity outputs for various measurement models. The filter´s response to constant velocity targets is found to be the input plus a sinusoidal transient. Constant acceleration measurement models, in addition, yield a steady state bias that is a function of the filter parameters α and β. Finally, the filter´s response to a sinusoidal input is determined

Keywords

digital filters; filtering and prediction theory; radar equipment; transfer functions; alpha-beta filter; measurement models; radar equipment; response characteristics; transfer function; Equations; Filters; Position measurement; Predictive models; Radar measurements; Radar tracking; Target tracking; Transfer functions; Transforms; Velocity measurement;

fLanguage

English

Publisher

ieee

Conference_Titel

System Theory, 1991. Proceedings., Twenty-Third Southeastern Symposium on

Conference_Location

Columbia, SC

ISSN

0094-2898

Print_ISBN

0-8186-2190-7

Type

conf

DOI

10.1109/SSST.1991.138587

Filename

138587