| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a baseband predistorter and baseband predistortion method. <P>SOLUTION: The baseband predistorter comprises: an address generator for calculating an address of a phase basic lookup table and an address of an amplitude basic lookup table; a parameter determining unit for determining a phase translational amount, an amplitude translational amount, a phase curvature adjustment amount and an amplitude curvature adjustment amount; a phase translating unit for changing the address in accordance with the phase translational amount; an amplitude translating unit for changing the address in accordance with the amplitude translational amount; a phase basic lookup table searching section for determining a corresponding phase output; an amplitude basic lookup table searching section for determining a corresponding amplitude output; a phase curvature adjusting section for adjusting the phase output; and an amplitude curvature adjusting section for adjusting the amplitude output. <P>COPYRIGHT: (C)2010,JPO&INPIT |
