| 摘要 |
<p>PROBLEM TO BE SOLVED: To precisely perform channel estimation by a small number of repeating time of recursive channel estimation by improving the precision of a channel estimation value at an initial step in repeated channel estimation. SOLUTION: When weighting-adding the in-phase addition value of a pilot signal and a pseudo pilot signal of a data concerning an n-numbered slot, a channel estimation circuit 104 controls a weighting coefficient according to the number of repeating times of channel estimation. Namely, channel estimation is performed by lightening the weight of the pseudo pilot signal in addition to the pilot signal at a step of the small number of repeating times, and channel estimation is performed by increasing the weight of the pseudo pilot signal in addition to the pilot signal at a step of the large number of repeating times.</p> |
