| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a radio signal receiver, capable of correcting a gain error of an I/Q signal of a baseband signal, while minimizing processing delay, using a simpler configuration. <P>SOLUTION: This radio signal receiver is provided with AD converters 12 and 13 for converting a baseband signal converted by a baseband signal converting part (RF part 11) into a digital value, an I/Q signal gain error detection part (I/Q signal gain calculating part 14) for detecting gain errors of an I component and a Q component of the baseband signal, an I/Q signal gain error correcting part (I/Q signal gain adjusting part 16) for correcting the gain errors of the I component and the Q component, a demodulating part 18 for demodulating the corrected baseband signal, and a gain error parameter managing part (memory control part 15) for storing gain error parameters of the I component and the Q component subjected to gain error correction in a memory 17. The I/Q signal gain adjusting part 16 corrects gain errors of the I component and the Q component of the baseband signal, on the basis of the preceding gain error parameters stored in the memory 17. <P>COPYRIGHT: (C)2005,JPO&NCIPI |
