Improving the quality control and accuracy of HF radar currents

HF radar current measurements systems are in widespread use around the world providing very useful data sets for many applications. Data quality is generally good although sometimes the data are noisy especially at the edges of the spatial coverage. New approaches to the quality control of these measurements to remove noisy results or replace them with more reliable estimates, for both direction-finding and phased-array systems, are discussed here and some encouraging results are presented.