Patent ID: 8929426
Filing Date: 2015-01-06
Classification: H04L

Abstract:
1. A communication apparatus, comprising: a locally-generated signal generating section that generates a first locally-generated signal and a second locally-generated signal; an orthogonally modulating section that orthogonally modulates a baseband signal using the first locally-generated signal to generate a modulated signal; an orthogonally demodulating section that orthogonally demodulates the modulated signal using the second locally-generated signal to generate a demodulated signal; a first orthogonal error correcting section that corrects a first orthogonal error that occurs in the orthogonally modulating section; a second orthogonal error correcting section that corrects a second orthogonal error that occurs in the orthogonally demodulating section; an orthogonal error detecting section that detects the first or second orthogonal error based on an amplitude of the demodulated signal; and an orthogonal error correction controlling section that controls a setting of the first or second orthogonal error correcting section in accordance with a result of detection by the orthogonal error detecting section, wherein the orthogonal error detecting section comprises: wherein the orthogonal error detecting section detects the orthogonal error based on a result of comparison of the amplitudes of the first to fourth zero crossing points.