Method and apparatus for robust acquisition of spread spectrum signals
US7292624B2 · kind B2 · utility
0Cited by
8References
14Claims
0Family size
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Key dates
| Filing date | Aug 27, 2002 |
| Grant date | Nov 6, 2007 |
| Priority date | — |
| Expiry date | Aug 5, 2024 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B1/708
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A Direct Sequence Spread Spectrum receiver is described in which a complex spread spectrum signal is cross correlated by four digitally matched filters. The filters and subsequent multipliers correlate the in-phase and quadrature components as well as the current and previous symbols. The result is a more robust signal acquisition at very low signal to noise ratios.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.