发明名称 MEASUREMENT SYSTEM USING SPECTRUM SPREAD
摘要 Provided is a positioning system which can perform synchronization time detection for accurate positioning by using a minimum hardware configuration and perform synchronization time detection with a small power consumption. More specifically, the positioning system includes: first detection means which transmits a spread code from a mobile station at a predetermined cycle and detects synchronization by rough synchronization from the signal received by a base station as a first detection; and second detection means which samples a signal received in a synchronization detection range decided according to the first detection and detects synchronization by micro synchronization as a second detection.
申请公布号 WO2009008432(A1) 申请公布日期 2009.01.15
申请号 WO2008JP62353 申请日期 2008.07.08
申请人 BROTHER KOGYO KABUSHIKI KAISHA;ISHIKAWA, KAN 发明人 ISHIKAWA, KAN
分类号 G01S5/14;H04B1/707;H04B1/7077;H04L7/00 主分类号 G01S5/14
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