| 摘要 |
<p>In an error detecting method and device for calculating a phase error in a PSK modulated signal having a predetermined modulation phase number, and so configured that a received phase of the modulated signal is mapped on a complex plane by allocating an inphase signal and a quadrature signal generated from the modulated signal as values of the axis of abscissas and the axis of ordinates, and a phase error between the received phase of the modulated signal thus mapped and a reference phase in each of a plurality of signal areas. The phase error between the received phase of the modulated signal mapped on the complex plane and a reference phase in each of the plurality of signal areas, is calculated as a distance between the mapped position of the modulated signal and a reference straight line, from at least one of the inphase signal and the quadrature signal, so as to obtain a plurality of phase errors. One signal area to which the received phase is mapped, is discriminated and selected from the plurality of signal areas, on the basis of the inphase signal and the quadrature signal. One phase error corresponding to the discriminated signal area is selected from the plurality of phase errors calculated above. <IMAGE></p> |
