| 摘要 |
Two elements of a duplex interferometer antenna each feed respective ports of a cross coupling network, the output of which is applied to a quadrature hybrid used as an RF phase detector. The phase detector outputs are alternately sampled on a PRF basis, heterodyned to an intermediate frequency and processed through a signal logarithmic IF amplifier which is also sampled on an alternate basis, one of the alternate outputs being subtracted from the other to achieve a ratio.
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