Implementation of a sidelobe blanking system on the AN/SPS-12 radar.
Arancibia, Pedro Pablo
Bouldry, John M.
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A sidelobe blanking system can be looked upon as a method for maximizing main-lobe-detection and minimizing sidelobe detection. The system is intended to provide only main-beam signals and thereby producing unambiguous bearing information. The sidelobe blanking system turns the video off when the signal in an auxiliary antenna is stronger than the signal in the main antenna. Sidelobe blanking is best for pulse interference, and is not suitable for sidelobe noise jamming. In order to carry out experiments with sidelobe blanking a system was implemented on the AN/DPS-1 and AN/SPS-12 radar sets. The theory of sidelobe blanking and the design and implementation of the working circuits used is presented, together with pictures of the system and examples of the displayed signals and results.
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