发明名称 |
A METHOD OF DESPREADING GPS SIGNALS |
摘要 |
<p>A method of despreading a plurality of GPS spread spectrum signals received by a GPS receiver (24) is disclosed together with a GPS receiver (24) and a mobile communications device (MS1) (especially a mobile cellular telephone) for the same. The method comprises the steps of acquiring a first GPS signal from the stored samples; obtaining frequency information relating to variations in the frequency of the first acquired signal as measured by the GPS receiver; and using the frequency information to acquire a second GPS signal. The frequency information may be used to acquire the second GPS signal in the course of a single dwell and may also, for a digital GPS receiver, relate to variations in the frequency of the first acquired signal present in stored samples.</p> |
申请公布号 |
WO02063330(A1) |
申请公布日期 |
2002.08.15 |
申请号 |
WO2002IB00371 |
申请日期 |
2002.02.04 |
申请人 |
KONINKLIJKE PHILIPS ELECTRONICS N.V. |
发明人 |
DOOLEY, SAUL, R.;YULE, ANDREW, T. |
分类号 |
G01S1/00;G01S5/00;G01S19/23;G01S19/25;G01S19/28;H04B7/26;H04Q7/34;(IPC1-7):G01S5/14;G01S1/04 |
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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