Saeid Haidari, Hadi Moradi, Mahmoud Shahabadi, S.M. Mehdi Dehghan


RSSI, reflection, NLOS, RF source localization, UAV, optimal pair


In this paper, an RF source localization approach, in non-line of sight condition, using reflected signals, is introduced in which received signal strength indicator and angle of arrival (AOA) observations are used. Furthermore, the optimal positions of the receiver to increase the accuracy of the localization are discussed. In the proposed approach, a reflected signal is modelled by three parameters, i.e., distance between the RF source and the receiver via the reflector, the reflection angle, and the AOA. These parameters are used to determine a locus for the RF source location. Then, by using at least two reflected signals to give two loci for the RF source location, the location of the RF source is determined. Furthermore, the optimal locus of one reflection with respect to the other one is determined. The approach has been simulated, and the results show better accuracy of localization for optimal pairs compared to the other pairs, which decreases the search time.

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