Infill radar to supress clutter - how good is it?
A question for the tech boffins;
I've heard of a second 'infill' primary radar being used in some circumstances to supress unwanted clutter - like from a windfarm for example.
How does another primary sensor not display the same clutter on the display, or is the lower lobe of the antenna suppressed thus helping it to 'see over' the interference. Or other means used, a simple earth bund for example?
I know certain sectors can be blanked from this sort of interference, but it renders that sector completely useless in a primary sense.
regards, Sifty