Location estimation method for unknown signal source

Abstract

In this letter, we propose a location estimation method for an unknown signal source. We considered this problem as nonlinear optimization one and found an effective solution. First, RSSI samples associated with location information are obtained. This problem is solved by finding the position and effective radiated power at which the error between the measured RSSI and the RSSI estimated from an assumed propagation loss equation is minimized. The validity of this method was clarified by numerical evaluation.