发明名称 |
A reduced-power GPS-based system for tracking multiple objects from a central location |
摘要 |
Location of an object to be tracked is determined by measuring, at a receiver situated at the object, the propagation time differences between the signals from a plurality of GPS satellites, each of which is received by the receiver situated at the object. The measured propagation time difference values are transmitted to a central station where the location of the object to be tracked is calculated based upon the propagation time differences of the signals transmitted from the satellites and data derived from a receiver apart from the object but also receiving signals from the satellites. |
申请公布号 |
GB2301725(A) |
申请公布日期 |
1996.12.11 |
申请号 |
GB19960010549 |
申请日期 |
1996.05.20 |
申请人 |
* GENERAL ELECTRIC COMPANY |
发明人 |
DANIEL DAVID * HARRISON;ANANTHA KRISHNAN * PRADEEP;GLEN WILLIAM * BROOKSBY;STEPHEN MICHAEL * HLADIK |
分类号 |
G01S19/42;B61L25/02;G01S1/20;G01S5/00;G01S5/10;G01S5/14;G08G1/123 |
主分类号 |
G01S19/42 |
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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