Title: Electronic radome-error compensation system

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Abstract: 1. In a radar-controlled system including a radome-covered antenna adapted to receive a radar beam and to develop direction signals in accordance with the direction of said received beam, and an electronic receiver adapted to receive and convert said direction signals derived from said antenna to develop output signals in a predetermined manner, wherein said radome-covered antenna subjects said beam to radome-error, and wherein said radome-error is functionally related to the offset angle of said beam, an electronic radome-error compensating system comprising: means coupled to said radar-controlled system and responsive to said direction signals for developing a signal representative of said offset angle of said beam, a function generator coupled to said means for receiving information indicative of said offset angle, and a compensation input terminal in said radar-controlled system, said function generator being coupled to said input terminal and adapted to generate a compensating signal which is at all times the negative replica of the effective radome-error contribution to said direction signals as related to the position of said input terminal, whereby said compensating signals are added to said direction signals, thereby rendering said output signals substantially independent of said radome-error.


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