| 摘要 |
<p>Correlation calculation unit (103) calculates a correlative value from a base band signal from a radio receiving unit (102). A delay profile forming unit (105) forms a delay profile by the correlative value from a selection unit (104). A peak detection unit (106) detects a peak correlative value and a peak phase from the delay profile and outputs the peak correlative value to a weighting unit (109) and outputs the peak phase to a correlative phase regulation unit (107) and a demodulation control unit (111). A correlation memory unit (108) calculates the self correlative value of a known diffusion code and outputs it to the correlative phase regulation unit (107). The correlative phase regulation unit (107) regulates the phase of the diffusion code self correlative value in accordance with the peak phase. The weighting unit (109) regulates the amplitude of the phase-regulated diffusion code self correlative value in accordance with the peak correlative value. A correlation elimination unit (110) eliminates the phase-regulated diffusion code self correlative values phase-regulated from the correlative value.</p> |
