Radio direction finding beam angle determn. - uses measurement of sine and cosine of strongest signal to determine incidence angle

摘要

The method automatically determines the angle of incidence of a radio direction finding beam. It determines the angle of two beam with the largest signal amplitude from more than one beam of quasi-coherent or incoherent light. The angle is derived from several measurement of sine and cosine which are summed to produce total sine or cosine values. The sine value is divided by the cosin value to produce an average tangent value and the arc tangent of this value is computed to produce the angle value.