EE Seminar: Multipath Fingerprinting: Exploiting multipath for accurate indoor localization
~~(The talk will be given in English)
Speaker: Dr. Mati Wax
Monday, June 6th, 2016
15:00 - 16:00
Room 011, Kitot Bldg., Faculty of Engineering
Multipath Fingerprinting: Exploiting multipath for accurate indoor localization
Abstract
Localization of an emitter in rich multipath environments, indoors and outdoors, is a challenging problem. In such environments there is typically no line-of-sight propagation between the emitter and the receivers, and as a result the traditional localization techniques based on line-of-sight propagation between the emitter and the receivers are ill-suited. To cope with this problem, a new localization technique based on machine learning techniques has been developed. The basic premise of this technique, referred to as multipath fingerprinting, is that in rich multipath environments the characteristics of the multipath signals – the directions-of-arrival and the differential-time-delays – provide a unique "fingerprint" of the emitter's location. The fingerprint is extracted from the spatial-temporal covariance matrix of the signals received by the antenna array, and is founded on the lower dimensional subspace, known as the signal subspace, capturing the dominant multipath signals. The performance of this technique, as demonstrated by both simulated and real data, is highly superior to existing techniques – achieving 1 meter accuracy in typical indoor environments using only a single Access Point (AP).
Bio:
Mati was the Founder and CTO of Wavion, which was later acquired by Alvarion, where he has leaded the development of multiple-antenna technology for wireless broadband access. Before founding Wavion, Mati was the CTO of US Wireless, where he was
responsible for the development of a multiple-antenna Location Fingerprinting technology for position location. Prior to that Mati worked for 25 years in Rafael. In his last capacity in Rafael, he headed the Center for Signal Processing, focusing on research and development multiple-antenna technology for military applications. Mati is an IEEE Fellow and a recipient of the Israel Defense Award from the president of Israel. He has a B.Sc and M.Sc from the Technion and a Ph.D from Stanford University.
