The receiving device and the first pass method of detection in delay profile

摘要

Delay profile compilation department 107 of tracking opening the correlation window in the range of the front and back 8 tips/chips of the first pass making use of the mid- un bull, at inside that range draws up delay profile. Pass decision section 108, it detects, whether or not from delay profile new pass exists before the first pass, when new pass exists, it decides whether or not new pass are your own pass.As for frame position control section 109, when the result of the decision in pass decision section 108, new pass are your own pass, modifying the first pass in new pass, it sets. On the one hand, when new pass are not your own pass, the first pass which is set first is made the first pass that way. And, timing the reception signal it recovers together in the first pass which is set. Because of this, it is possible to make reception quality satisfactory.