| 摘要 |
A compensator unit compensates frequency-dependent imbalance between a sampled in-phase and a sampled quadrature phase signal. The compensator unit includes a delay channel (381) and a filter channel (382). The delay channel (381) delays an intermediate signal x(t), which is obtained by superposition of the sampled in-phase and quadrature phase signals, by an integer multiple greater than zero. The filter channel (382) includes a filter (320) with a complex conjugated block (321) and with variable filter coefficients determined on base of autocorrelation function values of the intermediate signal x(t). The filter coefficients are determined such that the complementary autocorrelation of a compensator output signal y(t) is minimized for the filter span.
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