| 摘要 |
Separate components of a received signal are transmitted along two distinct paths to the adaptive cross-polarization interference cancellation arrangement. In each path, appropriate circuitry obtains a sample of a desired component in a particular signal, generates a signal representative of the power envelope of the sample, detects the in-phase and quadrature signals of a correlation between the desired component and interference, and generates control signals in response to the correlation signals to provide improved adjustment of the amplitude and phase of the interference in a canceler circuit. Each path includes a single square law device to reduce DC offset in correlation measurements which occur from square law device mismatches.
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