Abstract: A subterranean radar array system and method for imaging a subterranean target area. In one example, the subterranean radar array includes a plurality of radar chains disposed in a plurality of underground columns, each radar chain including a plurality of radar units forming the plurality of radar chains and at least one processor coupled to a corresponding at least one of the plurality of radar chains and configured to generate an image of a subterranean target area from signals received from the at least one radar chain.

Abstract: A subterranean radar array system and method for imaging a subterranean target area. In one example, the subterranean radar array includes a plurality of radar chains disposed in a plurality of underground columns, each radar chain including a plurality of radar units forming the plurality of radar chains and at least one processor coupled to a corresponding at least one of the plurality of radar chains and configured to generate an image of a subterranean target area from signals received from the at least one radar chain.

Abstract: The invention is a photonic home area network for interfacing an external communications data network with a plurality of buildings, residential or commercial, in a neighborhood. The external communications network has a plurality of user data bandwidth segments with at least television programming data, audio programming data and telephony service data provided to the network. The photonic home area network has a photonic multiaccess channel, a head-end communications circuit, a plurality of set-top box circuits, and an executable program for demultiplexing and distributing the data segments in the set-top box circuits and acquiring user data for incorporation into a subsequent multiplexed signal.