| 摘要 |
Disclosed herein is a pseudo-echo cancellation processing apparatus including: a correlator for computing a complex mutual-correlation value, that is, the value of a mutual correlation between the real part of a complex baseband signal of a received input-signal sequence and a reference-signal sequence included in the input-signal sequence as well as the value of a mutual correlation between the imaginary part of the complex baseband signal and the reference-signal sequence; and a processing section configured to carry out processes of: pre-storing complex vectors each representing pseudo-echo components; detecting a complex mutual-correlation value having a peak of powers of the complex mutual-correlation values; delaying the detected complex mutual-correlation value by a delay time corresponding to successive symbols; carrying out a complex multiplication operation; and adding a complex mutual-correlation value to an original complex mutual-correlation value. |
