Seeing Signals: Real-time Visualization of a Delay-and-Sum Beamformer
summary
A small phased array implements a delay-and-sum beamformer in GNU Radio and renders 2D raster plots that map magnitude and direction-of-arrival for every steering weight in near real time. Two-antenna 1D demos with edisor v210s and simple lag‑and‑add math reliably track angle and signal strength; the full 2D array visualizer shows quadrant failures when polarization misaligns in corner angles. Flowgraphs, hardware notes and demos live on the project GitHub and the approach is intentionally beginner-friendly.
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chapters (8)
- 0:00Introduction
- 0:27Welcome
- 0:59Simulation
- 2:24How it works
- 3:08Getting ready
- 5:15Work in Progress
- 6:30Conclusion
- 7:27Outro
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