Wireless Localization Method Using the Distributed Iterative Stochastic-Resonance-Based Signal Spectral Combination

In this study, a kind of nonlinear stochastic-resonance (SR) signal enhancement technique combined with the distributed receiving array signal power spectrum combination approach is proposed. By utilizing the signal spectral power improvement technique, the fitness of the distributed SR system with the array structure, and the information combination of the receiving power spectra, the corresponding objective of wireless localization can be realized successfully. An iterative nonlinear SR-based processing structure and corresponding algorithm are also proposed, which guarantee the applicability of the proposed approach. Computer simulations give the better performances of the proposed method compared with the conventional direction of arrival (DoA) estimation approaches and corresponding wireless localization estimation results.