| 摘要 |
<p>PURPOSE: By eliminating unbalanced between Q signals and I signal the IQ unbalanced estimation, the apparatus for removing and method decode the signal which more nears to the original signal. CONSTITUTION: Analog/digital converters(110, 120) output the digital I signal and digital Q signal by sampling the analog I signal and analog quadruple signal. The IQ unbalanced estimation and delete(200) presume the unbalanced of gain and phase about I signal and Q signal as obtain. It is based on in the presumed information as described above and the IQ unbalanced estimation and delete eliminate the unbalanced of gain and phase of I signal and Q signal. A channel equalizer(300) is input I signal and Q signal from the IQ unbalanced estimation and delete. The channel equalizer is restored to the former state the original signal by eliminating the noises according to the channel characteristic.</p> |
