Robust, Time-Critical, Evidence-Based Adaptive Data Fusion
General Material Designation
[Thesis]
First Statement of Responsibility
Javadi, Mohammad Amin
Subsequent Statement of Responsibility
Huff, Brian L.
.PUBLICATION, DISTRIBUTION, ETC
Name of Publisher, Distributor, etc.
The University of Texas at Arlington
Date of Publication, Distribution, etc.
2020
PHYSICAL DESCRIPTION
Specific Material Designation and Extent of Item
147
DISSERTATION (THESIS) NOTE
Dissertation or thesis details and type of degree
Ph.D.I.E.
Body granting the degree
The University of Texas at Arlington
Text preceding or following the note
2020
SUMMARY OR ABSTRACT
Text of Note
Sensors have become inevitable part of many studies and working areas ranging from navigation, transportation and medical applications. A sensor can help a user in a variety of situations including dangerous, inaccessible, time and money-consuming circumstances. Applying multiple sensors simultaneously allows for improving the accuracy of measurement estimates for system states. As an example, a part of this study uses a GPS sensor to increase the accuracy of the position estimation obtained by an IMU in an indoor environment. The same GPS device with position outputs can also be studied to provide a new measuring dimension such as velocity. This way of sensors helping each other is covered in this study to achieve more accurate and robust estimates compared to when they contribute separately. This study is carried out to develop a new way of achieving better estimates of system states. An attempt to indicate the applicability and robustness is also provided for navigation purposes. This work is founded on evidence-based theory wherein pieces of evidence or facts are used to cross-check the outputs given by sources. It also applies the concept of meta-sensing in which proportional weights are assigned to the data from each sensor based on how close the data from each sensor is to the others. This causes the estimates to be more robust and reliable in a real-time environment. The obtained outcomes show more reliable decision-making under the defined scenarios.