Basically a combination of monitoring and emergency response. Limited willingness to employ weapon systems as tranquility in battlefields is expensive. Possibly a synthetic aperture CW system and 3 kw ground based airplane detector. A mechanically rotated reflector antenna with a fan shaped beam narrow in the azimuth direction and broad in the elevation plane. A monostatic system on the roof combined with receivers at the perimeter may enhance coverage and accuracy while adding protective redundancy.
We want to be able to deal with small planes, hunting rifles and trucks. Anything beyond that is a local military responsibility. Reliable and silent removal of armed playground predators. More information on file but this topic is beyond my expertise. Military engineers required. Dematrons may be handy for small arms. Need for real time computer support.
More to follow. Blair