Indoor geolocation of radio frequency (RF) trans-
mitters is challenging due to site-specific multipath effects,
especially when the sources are uncooperative. A source being
uncooperative means that a-priori the transmit time, location,
and power are unknown. It is proposed to use a site-specific
ray tracing model to generate realistic indoor RF responses,
perform geolocation using multiple methods, and compare their
performance. This work will look at two types of geolocation
algorithms: (1) time-difference of arrival (TDOA) and (2) re-
ceived signal strength Indicator (RSSI) fingerprinting or pattern-
matching-based methods. An indoor space will be simulated with
a grid of fixed receivers and a grid of transmit locations using
Remcom’s Wireless InSite. Using the output of the Wireless InSite
simulation the response from any given transmit location can be
generated and used to evaluate geolocation performance.
Published: April 11, 2023
Citation
Clark R.T., A.W. Engel, T.E. Shenk, and D.M. Sheen. 2023.Indoor Wireless Localization of Uncooperative Sources Using a Ray Tracing Model. In IEEE Topical Conference on Wireless Sensors and Sensor Networks, January 22-25, 2023, Las Vegas, NV, 68-70. Piscataway, New Jersey:IEEE.PNNL-SA-175491.doi:10.1109/WiSNeT56959.2023.10046209