| 摘要 |
A code synchronous timing determining apparatus comprising a correlator (MF) configured to acquire correlation values of a code included in a received CDMA signal and an internal code provided in the apparatus at plural timings in each of a plural given time widths included in a given period, a storage circuit (12) configured to store the correlation values corresponding to the plural timings, a first registering unit (13, 14) configured to retrieve at least one timing having a maximal value among stored plural correlation values and to register the one timing as a maximal timing, a second registering unit (124) configured to scan each correlation value in the forward and backward directions from the maximal timing to detect a minimal correlation value and to register a timing corresponding to the minimal correlation value as a minimal timing, an extractor (127) configured to extract at least one correlation value having a value of a predetermined value or more from the correlation values stored at plural timings having a specified timing interval from the maximal timing to the minimal timing, as a high correlation value candidate, and a holding unit (123) configured to hold a timing corresponding to the high correlation value candidate as timing information of code synchronism. <IMAGE> |
