Title :
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
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;
Conference_Titel :
System Theory, 1991. Proceedings., Twenty-Third Southeastern Symposium on
Conference_Location :
Columbia, SC
Print_ISBN :
0-8186-2190-7
DOI :
10.1109/SSST.1991.138587
