发明名称 |
Self-calibrating electronic distance measurement instrument |
摘要 |
A combined satellite positioning and electro-optical total station system includes a reference oscillator that provides local oscillator signals for a satellite navigation receiver and a precision frequency source for use by an electronic distance meter. When the satellite navigation receiver is locked onto and tracking orbiting navigation satellites, the highly precise cesium-rubidium clocks in the navigation satellite system can be used as standards to control the reference oscillator in the combined satellite positioning and electro-optical total station system. Baseline measurements made by the electronic distance meter are therefore not subject to mis-calibrations and drift as long as the satellite navigation receiver is locked onto and tracking the orbiting navigation satellites.
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申请公布号 |
US6614395(B2) |
申请公布日期 |
2003.09.02 |
申请号 |
US20020153201 |
申请日期 |
2002.05.20 |
申请人 |
TRIMBLE NAVIGATION LIMITED |
发明人 |
TALBOT NICHOLAS C.;MCCUSKER MICHAEL V. |
分类号 |
G01C15/00;G01S1/00;G01S5/14;G01S7/40;G01S7/497;G01S17/02;G01S19/11;G01S19/48;(IPC1-7):G01S5/14;G01S13/00 |
主分类号 |
G01C15/00 |
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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