Electromagnetic Vector Antenna Array-Based Multi-Dimensional Parameter Estimation for Radio Propagation Measurement

A multi-dimensional parameter estimation method for radio propagation measurements is investigated. A distributed electromagnetic vector antenna (EMVA) array-based multiple signal classification (MUSIC) method is proposed to estimate the delay, the angle of arrival (AoA), and the cross polarization ratio (XPR) of every ray. The delay is estimated using the channel response matrix. After the polarization smoothing, the AoA is estimated. Applying the spatial smoothing method, the XPR is then obtained. Simulation results reveal that using the proposed multi-dimensional parameter estimation method, more rays with higher accuracy can be estimated than the ones using the conventional method.