Multiple open-loop interference canceller for a rotating search radar

This paper describes the construction and operation of a triple open-loop interference canceller for a high-PRF high-rotation-rate search radar. Experimental results show that up to 25 dB reduction in jamming power can be achieved when countering the effects of one, two or three jammers present in the sidelobes of the main antenna, without significantly affecting target detection. Results also show substantial benefits even with strong main-beam jamming.