Spatial Channel Sounding Based on Bistatic Synthetic Aperture Radar Principles

摘要

In this paper, we propose a simplified spatial channel sounding method by utilizing bistatic synthetic aperture radar（BiSAR） principles. Despite the different deployment geometries compared with a conventional BiSAR system, the feasibility of the approach is established by 1) the proposed method achieves a better spatial resolution than conventional directional channel sounders and 2) reconstruction algorithms based on time-domain backprojection in conjunction with a digital elevation model provide a good imaging performance and are suitable for reconstructing the spatial distribution of scatterers. Simulations of a high-speed rail（HSR） scenario demonstrate that the estimated power delay profiles（PDPs） and power angle profiles（PAPs） are close to the actual values.