Patent ID: 8558734
Filing Date: 2013-10-15
Classification: G01S,H01Q

Abstract:
1. A method of implementing a three dimensional ground based bistatic radar receiving antenna for detecting and precisely determining locations of birds in a surveillance volume, said method comprising: providing a vertically oriented offset parabolic cylindrical antenna; implementing said offset parabolic cylindrical antenna as receive only; mounting an array of antenna elements along the vertical focal line of said offset parabolic cylindrical antenna; receiving and converting signals from said antenna elements to digital data; and combining said digital data in a three dimensional ground based bistatic radar external to said three dimensional ground based bistatic radar receiving antenna to form multiple simultaneous receiving beams of any desired elevation beamwidths and sidelobes and electronically scanned in elevation by controlling the progressive phase difference and amplitude between said digital data from said array of antenna elements along said vertical focal line of said offset parabolic cylindrical antenna.