A Novel Wireless Positioning Approach Based on Distributed Stochastic-Resonance-Enhanced Power Spectrum Fusion Technique

摘要

In the wireless positioning, the performances of most traditional methods are influenced by the low signal-to-noise (SNR) and none-line-of-sight (NLOS) problems seriously. So in this study, a kind of nonlinear stochastic-resonance (SR) signal enhancement technique combined with the distributed receiving array power spectrum fusion approach is proposed. By utilizing the signal power improvement property, the fitness of distributed SR system with the array structure, and the information fusion of the spectrum, the corresponding wireless positioning can be realized satisfactorily. Computer simulations also show the advantages over conventional methods in the direction of arrival (DoA) estimation and positioning estimation.