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doi:
10.5937/str2003017R
Vol. 70, No.3
(2020), Pages: 17-23
Impressum
Contents
An Approach of
Constant False Alarm Ratio for Improved Target Tracking
Zvonko
Radosavljević
Dejan Ivković
Each radar has the
function of surveillance of certain areas of interest. In
particular, the radar also has the function of tracking moving
targets in that territory with some probability of detection, which
depends on the type of detector. Constant false alarm ratio (CFAR)
is a very commonly used detector. Changing the probability of target
detection can directly affect
the quality of tracking the moving targets. The paper presents the
theoretical basis of the influence of CFAR detectors on the quality
of tracking, as well as an approach to the selection of CFAR
detectors, CATM CFAR, which enables better monitoring by the
Interacting Multiple Model (IMM) algorithm with two motion models.
Comparative analysis of CA and CATM algorithm realized by numerical
simulations has shown that CATM CFAR gives less tracking error with
proportionally the same computer resources.
Key words: Index Terms - CFAR detector, radar detection, IMM, target
tracking
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