发明名称 |
Codeless GPS positioning method and apparatus for such codeless positioning |
摘要 |
<p>The invention relates to a method and an apparatus for codeless GPS positioning. According to the method, the unit (2) to be positioned receives GPS signals from several satellites (4), the codes of the GPS signals are removed, and the extracted carrier signals are transmitted out from the unit (2) to be positioned for the purpose of determining the position and/or velocity of said unit (2) to be positioned. According to the invention, the carrier signal frequencies are detected by means of a phase-locked loop and the thus detected signals are transmitted in digital format out from the unit (2) to be positioned for the purpose of further processing. <IMAGE></p> |
申请公布号 |
EP0732596(A2) |
申请公布日期 |
1996.09.18 |
申请号 |
EP19960660002 |
申请日期 |
1996.03.12 |
申请人 |
VAISALA OY |
发明人 |
EEROLA, VILLE ANTERO;RITONIEMI, TAPANI JUHANI;HUSU, TIMO KALEVI;KYROELAE, MARKO;KAISTI, KIM JUHANI;SAARNIMO, TIMO HEIKKI;KARTTUNEN, VESA ALLAN;MAEKELAE, JUKKA PETTERI |
分类号 |
G01S1/00;G01S5/00;G01S5/14;G01S19/11;G01S19/42;(IPC1-7):G01S5/14 |
主分类号 |
G01S1/00 |
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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