RF source localization using reflection model in NLOS condition

This paper introduces RF source localization in the absence of Line Of Sight signal reception considering the reflection phenomena. Reflection that can reduce the signal strength due to the angle of reflection and the distance between the RF source and the receiver. The proposed approach is used to localize an RF source based on the reflection model of signals from obstacles using RSSI and DOA as measurement. To estimate the reflection angle and the distance between the RF source and the receiver, as the reflection parameters, the reflection path is modeled based on the signal strength and a data base is created based on the signal propagations. Then the Nearest Neighbor algorithm is used to estimate reflection parameters for obtaining the locus of possible location of the RF source. The localization of the RF source is calculated by intersecting two locus of possible locations which can be estimated by one or two UAVs. The approach has been implemented and simulated with good results.

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