Stand alone collision avoidance system

摘要: A stand alone collision avoidance system is disclosed for mounting to a large passenger jet especially avoid the problem common such jets colliding with small propeller driven aircraft. bistatic radar antenna having frequency in range of 40 Giga Hertz (hereafter GHz). Paired antennas are used each couplet transmitting and receiving searching one quadrant total forward hemisphere search direction plane travel. transmitter antennas, quadrant, typically located above below nose weather mechanically scanned side typical "beaver tail" scan beaver tail occupying 100° elevation 0.71° beam width. again on leading edge vertical stabilizer or other special mast lowered position where landing gear shadow does not obscure view. Each synchronously its consists phased array generated from about 500 discrete linearly disposed elements resolution up 0.21°. The responsive only return signals approaching narrow angular range, at some desired, variable, angle.