GRCon 2020 - Seeing Signals: Real-time Visualization of a Delay-and-Sum Beamformer

Presented by Richard Stanley at GNU Radio Conference 2020 https://gnuradio.org/grcon20 This presentation demonstrates 2D visualization of magnitudes and direction of arrival as generated from small phased arrays using a delay-and-sum beamformer. By using raster plots it’s possible to view both direction of arrival and magnitude for all steering weights simultaneously. While DOA with GNU Radio is a well-trodden topic, the approach demonstrated offers a novel, if simple and beginner-level, approach to it.