mergeScores
Update track score by track merging
Description
mergeScores(
updates the score of scoreLogic1
,scoreLogic2
)scoreLogic1
by merging the score with the score of
scoreLogic2
. Score merging increases the score of
scoreLogic1
by log(1+exp(score2-score1))
.
Examples
Merge Score Logics
Create a score logic using the default confirmation and deletion thresholds. Initialize the score logic.
scoreLogic1 = trackScoreLogic; volume = 1.3; % Volume of a sensor detection bin beta1 = 1e-5; % New target rate in a unit volume init(scoreLogic1,volume,beta1); disp(['Score and MaxScore of ScoreLogic1: ', num2str(output(scoreLogic1))])
Score and MaxScore of ScoreLogic1: 2.4596 2.4596
Create a copy of the score logic.
scoreLogic2 = clone(scoreLogic1);
Specify the likelihood that the detection is assigned to the track, the probability of detection (pd
) and the probability of false alarm (pfa
). Update the second score logic with a hit.
likelihood = 0.05 + 0.05*rand(1);
pd = 0.8;
pfa = 1e-3;
hit(scoreLogic2,volume,likelihood,pd,pfa)
disp(['Score and MaxScore of ScoreLogic2: ', num2str(output(scoreLogic2))])
Score and MaxScore of ScoreLogic2: 7.0068 7.0068
Merge the score of scoreLogic1
with the score of scoreLogic2
. The score of scoreLogic2
is larger, therefore the merged score of scoreLogic1
increases.
mergeScores(scoreLogic1,scoreLogic2)
disp(['Score and MaxScore of merged ScoreLogic1: ', num2str(output(scoreLogic1))])
Score and MaxScore of merged ScoreLogic1: 7.0173 7.0173
Input Arguments
scoreLogic1
— Track score logic to update
trackScoreLogic
object
Track score logic to update, specified as a trackScoreLogic
object.
scoreLogic2
— Reference track score logic
trackScoreLogic
object
Reference track score logic, specified as a trackScoreLogic
object.
Extended Capabilities
C/C++ Code Generation
Generate C and C++ code using MATLAB® Coder™.
Version History
Introduced in R2018b
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