| 摘要 |
<p>PURPOSE:To facilitate miniaturizing and to obtain a weight coefficient easily by making quadrature component before auxiliary antenna input is converted to intermediate frequency, and using limiting amplifiers as an intermediate frequency amplifier. CONSTITUTION:Disturbing wave signals from an auxiliary antenna 2 are distributed to two components of quadrature component and equal electric power by a 90 deg. electric power distributor 4, and after converting each of them to intermediate frequency, inputted to a correlation mixer 10 and a weighting mixer 8 as a reference signal through a pair of limiting amplifier circuits 6. An intermediate frequency signal of a main signal is inputted to the correlation mixer 10 through a differential circuit 7 and an amplifier circuit 6-3, and the correlation is taken with the disturbing wave component. The output of the correlation mixer 10 makes weight coefficient equal to an average value of electric power of the disturbing wave signal by each integrator 9, and the disturbing wave signal is weighted by each weighting mixer 8. The output of each mixer 8 is power composed and becomes complex weighted disturbing signal, and the difference between the main signal is taken by the differential circuit 7 and becomes the receiver output for which disturbing wave is suppressed.</p> |
