Sensor Reliability Evaluation Scheme for Target Classification Using Belief Function Theory

Sensors

Jing Zhu¹  Yupin Luo¹ 

[1] Tsinghua National Laboratory for information Science and Technology (TNList), Department of Automation, Tsinghua University, Beijing 100084, China; E-Mail:

关键词: information fusion;    sensor reliability;    belief function theory;    discounting factor;    target classification;   

DOI  :  10.3390/s131217193

来源: mdpi

【 摘 要 】

In the target classification based on belief function theory, sensor reliability evaluation has two basic issues: reasonable dissimilarity measure among evidences, and adaptive combination of static and dynamic discounting. One solution to the two issues has been proposed here. Firstly, an improved dissimilarity measure based on dualistic exponential function has been designed. We assess the static reliability from a training set by the local decision of each sensor and the dissimilarity measure among evidences. The dynamic reliability factors are obtained from each test target using the dissimilarity measure between the output information of each sensor and the consensus. Secondly, an adaptive combination method of static and dynamic discounting has been introduced. We adopt Parzen-window to estimate the matching degree of current performance and static performance for the sensor. Through fuzzy theory, the fusion system can realize self-learning and self-adapting with the sensor performance changing. Experiments conducted on real databases demonstrate that our proposed scheme performs better in target classification under different target conditions compared with other methods.

【 授权许可】

CC BY   
© 2013 by the authors; licensee MDPI, Basel, Switzerland.