| 摘要 |
PURPOSE:To realize a phase decision unit which does not generate logical decision error, by deciding the phase of a modulation wave on the basis of respective decision outputs from the first and the second polarity decision equipments for orthogonal demodulation signals and the comparison decision output from a comparator. CONSTITUTION:The phase of a received modulation wave is decided on the basis of outputs D0 and D1 of polarity decision equipments SIG1 and SIG2 for demodulation signals x and y and comparison decision output D2 between a signal, which outputs one of x and y signals according to the detection output which is obtained by detecting agreement or disagreement between the outputs above, and the other. |
