OTH-B coordinate registration experiment using an HF beacon

Over-the-horizon backscatter (OTH-B) radars provide long range, wide area surveillance by reflecting radio waves off the ionosphere. Estimates of the ionospheric reflection heights of the radar signals are used to convert from radar coordinates to ground coordinates for target detection and tracking. This paper describes the results of an experiment using an HF beacon to eliminate bias errors in the coordinate registration (CR) process.