Direct Position Determination of Indoor Radio Sources Using Hybrid Antenna Arrays

It is well known that the Direct Position Determination (DPD) methods outperform the two-step methods at low Signal to Noise Ratio (SNR). The better robustness of DPD approach to the noise comes from its signal-level constraint, i.e., the received signals of different receivers come from the same transmitter. Based on the idea that the more strict DPD constraint will also improve the robustness to...