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 tr...

Full description

Saved in:
Bibliographic Details
Main Authors: Hao, Kegang, Chen, Jing, Wan, Qun
Format: Conference Proceeding
Language:English
Subjects:
Beam Space
Direct Position Determination
Hybrid power systems
Indoor Localization
Interference
Location awareness
MP Interference
Radio transmitters
Receivers
Robustness
Simulation
Online Access:Request full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary: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 the Multi-Path (MP) interference in indoor environment, we derive the conventional DPD estimator for the indoor localization. Furthermore, considering the power of MP interference in beam space may be larger than that of Direct-Path (DP) for the unequal beam gain of hybrid antenna array, we improve our DPD estimator to suppress the false alarm caused by the stronger MP interference. The simulation results indicate that the improved DPD estimator is more robust to the MP interference, and compared with the two-step methods, the proposed DPD estimators have better positioning accuracy.
ISSN:1558-2612
DOI:10.1109/WCNC49053.2021.9417374