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 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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