A single channel approach to high resolution direction finding and beamforming

This paper presents an array processing approach that only requires the array outputs to be sampled one at a time by a single channel receiver. We note that the sequential sampling of the array outputs is equivalent to the periodic but non-uniform sampling of the source waveform. The derived array model is structurally similar to the conventional array model. This allows the direct application of most conventional high resolution DOA estimation and beamforming algorithms with the proposed approach. The feasibility of this approach is demonstrated with simulation data.