Patent ID: 8724752
Filing Date: 2014-05-13
Classification: H03D,H04L

Abstract:
1. An amplitude/orthogonality error compensator comprising: an amplitude corrector configured to perform an amplitude correction on an in-phase component and a quadrature component of an input complex signal based on amplitude error information, and to output a complex signal obtained through the amplitude correction; an orthogonality corrector configured to perform an orthogonality correction on the complex signal, obtained through the amplitude correction, based on orthogonality error information, and to output a complex signal obtained through the orthogonality correction; a filter section configured to allow a predetermined frequency component included in the complex signal obtained through the orthogonality correction to pass through the filter section; an amplitude error detector configured to determine the amplitude error information based on an in-phase component and a quadrature component of the complex signal that has passed through the filter section; and an orthogonality error detector configured to determine the orthogonality error information indicating an orthogonality error between the in-phase component and the quadrature component of the complex signal that has passed through the filter section.