Patent ID: 6163564
Filing Date: 2000-12-19
Classification: G01S,H01Q,H04B

Abstract:
A virtual beam system operating in an environment, the environment including at least one non-compatible receiver, the system comprising:a transmitting subsystem, the transmitting subsystem including an array of transmitting elements and means for generating a transmitting element position encoded composite signal, the array of transmitting elements being operatively coupled to the means for generating the transmitting element position encoded composite signal, the transmitting subsystem radiating the element position encoded composite signal from the array of transmitting elements, the transmitting element position encoded composite signal being spread spatially and radiated over a wide angular sector; anda receiving subsystem, the receiving subsystem being responsive to the element position encoded composite signal, the receiving subsystem including at least one receiving element and means for decoding the transmitting element position encoded composite signal, the at least one receiving element being operatively coupled to the means for decoding the transmitting element position encoded composite signal, the element position encoded composite signal appearing to be radiated as a spatially spread wide beam, having relatively low directive gain, when received and decoded by the at least one non-compatible receiver, the element position encoded composite signal appearing to be radiated as a narrow beam, having relatively high directive gain, when received by the at least one receiving element and decoded by the means for decoding the transmitting element position encoded composite signal of the receiving subsystem.