Oregon State University

Can’t find an event? We’re busy migrating to a new event calendar. Try looking at the new calendar



Event Details

MS Final Examination – Tao Lyu

Friday, March 11, 2016 1:00 PM - 3:00 PM

Threshold Selection Based on the SNR in Time of Arrival Localization System
Threshold-based time of arrival (TOA) estimation is a good technique for high-precision indoor localization. Existing threshold selection methods, such as fixed threshold and normalized adaptive threshold methods, do not consider the signal-to-noise radio (SNR) value at the receiver side. This is not desired for high-precision positioning. A proper threshold value depends on the statistics of the received signal. The dominating parameter that affects the statistics of the receiver is the SNR. In this thesis, we propose an adaptive threshold selection method which takes the SNR value at the receiver into consideration, resulting in an increased precision of the timing detection (first peak detection). The performance of the proposed method is evaluated in simulation. The simulation uses ultra wideband transmitted signal, and adopts the IEEE 802.15.3a channel model. Performance of the fixed threshold, normalized adaptive threshold methods, and the proposed selection threshold method are compared.

Major Advisor: Huaping Liu
Committee: Thinh Nguyen
Committee: Alan Wang
GCR: William H. Warnes

Kelley Engineering Center (campus map)
Nicole Thompson
1 541 737 3617
Nicole.Thompson at oregonstate.edu
Sch Elect Engr/Comp Sci
This event appears on the following calendars: