Acquisition method for global positioning system
US7706470B2 · kind B2 · utility
1Cited by
1References
12Claims
0Family size
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Key dates
| Filing date | Jan 4, 2007 |
| Grant date | Apr 27, 2010 |
| Priority date | — |
| Expiry date | Nov 14, 2028 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S19/24
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A Global Positioning System (GPS) acquisition method is provided. A GPS signal is first received, comprising a plurality of data bits, each repeating for a bit period. A search space is then formed, comprising a plurality of elements each associated with a presumed offset and a presumed code phase. Before bit-transition of each bit period, element values of the elements are accumulated by substituting the data bits into a coherent-combination algorithm. After bit-transition of each bit period, the element values are accumulated by substituting the data bits into a differential-coherent combination algorithm.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.