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Radio astronomy instrumentation uses phased array feeds to provide radio telescopes with wider fields of view and enhanced beam control for detection and interference suppression. The standard assumption in Radio Astronomy is that receiver amplifiers operate in a linear region. In the presence of strong radio-frequency interference (RFI), however, it is possible to drive the amplifiers non-linear...
For non-sidelooking airborne radar operating in medium pulse repetition frequency mode, the space-time adaptive processing (STAP) technique suffers from a significant performance loss due to the range dependence of clutter. Here, an efficient clutter suppression approach is presented to improve STAP performance. Utilising the characteristics of clutter, the near-range clutter, the major reason for...
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