Distributed Detection and Data Fusion

April 30, 2019 @ 6:00 pm – 8:00 pm America/New York Timezone
MIT Lincoln Laboratory
3 Forbes Road

Co-sponsored by Geoscience and Remote Sensing Society (GRSS) and Aerospace and Electronic Systems Society (AESS)

Speaker: Prof. Peter K. Willett

The initial paper on the subject of distributed detection, by Tenney and Sandell, showed that under a fixed fusion rule, for two sensors with one bit outputs, the optimal Bayes sensor decision rule is a likelihood ratio test. It has been shown that the optimal fusion rule for N sensors is a likelihood ratio test on the data received from the sensors. Reibman and Nolte and Hoballah and Varshney have generalized the results to N sensors with optimal fusion, again with the restriction of one bit sensor outputs; this has been relaxed later to multi-bit quantizations. In this “primer” talk we explore a number of issues in distributed detection, including some pathologies, the benefits of fusion, optimal design, structures for decision flow, consensus, sensor biases, feedback, deliberate obfuscation (i.e., security) and censoring. We also devote some time to distributed estimation (i.e., fusion for tracking): why is it difficult and what seems to work best?

Speaker Bio: Peter Willett received his BASc (Engineering Science) from the University of Toronto in 1982, and his PhD degree from Princeton University in 1986. He has been a faculty member at the University of Connecticut ever since, and since 1998 has been a Professor. He has published 168 journal articles (14 more under review), 355 conference papers, and 10 book chapters and a book on target tracking and data association. He was awarded IEEE Fellow status in 2003. His primary areas of research have been statistical signal processing, detection, machine learning, data fusion and tracking. He has interests in and has published in the areas of change/abnormality detection, optical pattern recognition, communications and industrial/security condition monitoring. He was editor-in-chief for IEEE Transactions on Aerospace and Electronic Systems from 2006-2011, and served as the AESS Vice President for Publications from 2012-2014. He now serves as Associate EiC of the AES Systems Magazine. Until recently he was associate editor for three active journals – IEEE Transactions on Aerospace and Electronic Systems (for Data Fusion and Target Tracking) and IEEE Transactions on Systems, Man, and Cybernetics, parts A and B. He is also associate editor for the IEEE AES Magazine, associate editor for ISIF’s electronic Journal of Advances in Information Fusion and is Area Editor for the IEEE Signal Processing Society’s Signal Processing Letters.

Meeting Location: MIT Lincoln Laboratory, 3 Forbes Rd, Lexington, MA 02421