| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a wireless transmitter whereby an offset inputted to an orthogonal transform unit is adjusted with high accuracy. <P>SOLUTION: The wireless transmitter including the orthogonal transform unit includes: a digital / analog converter for converting I, Q components of a digital baseband signal respectively into an analog baseband signal; a digital compensation unit for inputting a digital offset value to the digital / analog converter; and an analog compensation unit for inputting an analog offset value to each of low-pass filters for I, Q components for receiving output signals of the I, Q components from each digital / analog converter, and uses them in parallel to adjust the offset value. <P>COPYRIGHT: (C)2004,JPO&NCIPI |
