Experimental demonstration of narrowband multi‐bistatic Doppler radar tomography

This article demonstrates the novel approach of multi‐bistatic Doppler radar tomography for high‐resolution imaging of a generally non‐cooperative target using narrowband signals. An imaging system consisting of a single narrowband transmitter and multiple bistatic receivers is considered. The signal processing is performed centrally. This technique requires the bistatic angles to be estimated with sufficient accuracy before the final image inversion step. Results from an experimental dataset are used to demonstrate the imaging algorithm, which reaffirm the widely held expectation that the spatial diversity of a multi‐bistatic narrowband radar system can provide a system resource equivalent to a wide signal bandwidth.