Fuzzy logic multisensor association algorithm

James F. Smith III

doi:10.1117/12.280788

28 July 1997 Fuzzy logic multisensor association algorithm

James F. Smith III

Proceedings Volume 3068, Signal Processing, Sensor Fusion, and Target Recognition VI; (1997) https://doi.org/10.1117/12.280788
Event: AeroSense '97, 1997, Orlando, FL, United States

Abstract

A recursive multisensor association algorithm has been developed based on fuzzy logic. It simultaneously determines fuzzy grades of membership and fuzzy cluster centers. It is capable of associating data from various sensor types and in its simplest form makes no assumption about noise statistics as many association algorithms do. The algorithm is capable of performing without operator intervention, i.e., it is unsupervised. It associates data from the same target for multiple sensor types. The algorithm also provides an estimate of the number of targets present, reduced noise estimates of the quantities being measured, and a measure of confidence to assign to the data association. The fuzzy logic formalism used offers the opportunity to incorporate additional information or heuristic rules easily. A comparison of the algorithm to a more conventional Bayesian association algorithm is provided. Also, procedures for defuzzification, i.e, mapping fuzzy results to hard results are discussed as well as the method of determining target validity. Various simulated and experimentally measured real-time data sets are analyzed and provide a basis for comparison of the fuzzy and Bayesian association algorithms.

Citation Download Citation

James F. Smith III "Fuzzy logic multisensor association algorithm", Proc. SPIE 3068, Signal Processing, Sensor Fusion, and Target Recognition VI, (28 July 1997); https://doi.org/10.1117/12.280788

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