Patent ID: 6473362
Filing Date: 2002-10-29
Classification: H01Q,H04B,Y10S

Abstract:
A receiver for receiving a mainbeam signal of approximate frequency, &OHgr;, in an environment containing directional interference signals of approximate frequency, &OHgr;, said receiver comprising:a sensor array having a plurality of sensors; a means for beamsteering said sensor array in the direction of the mainbeam; a plurality of nonlinear oscillators, each said nonlinear oscillator connected to a said sensor to produce a nonlinear oscillator output; a summer connected to each said nonlinear oscillator for receiving and summing said nonlinear oscillator outputs and creating a summer output; at least one coupling circuit for coupling each said nonlinear oscillator to at least one other said nonlinear oscillator to cause a summer output having a frequency of approximately, &OHgr;, in response to receipt of the mainbeam signal by the sensor array and to cause a summer output having a frequency of approximately, {overscore (&ohgr;)}, in response to receipt of a directional interference signal by the sensor array; and a matched filter connected to said summer for receiving said summer output and separating said summer output into signals having an approximate frequency of &OHgr; and signals having an approximate frequency of {overscore (&ohgr;)}.