| 摘要 |
<p>A received signal converted to a digital signal by an A/D converting circuit (103) is subjected to spectrum despreading by despreading circuits (104 and 109), the spectrum-despread signal of one despreading circuit (104) is averaged by a delay profile measuring circuit (105), a delayed-wave signal of a sample in higher order having a high receiving level is detected from the averaged signal by a searcher circuit (106), the phase amount of a known signal in the spectrum-despread signal by the other despreading circuit (109) is estimated by a phase estimating circuit (108), the complex conjugate of the estimated amount of phase is calculated by a control circuit (107). Thereby, a tap coefficient of the despreading circuit (109) which is multiplied by the delayed wave signal detected by the searcher circuit (106) in units of spectrum-spread data are calculated and set.</p> |
