All-lag spread-spectrum correlator
US6868115B1 · kind B1 · utility
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6References
11Claims
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Key dates
| Filing date | Jun 30, 2000 |
| Grant date | Mar 15, 2005 |
| Priority date | — |
| Expiry date | May 8, 2022 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B1/709
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
An all-lag correlator is provided that correlates a received spread-spectrum signal with a reference code and produces at each sampling instance N correlation lags corresponding to the correlation of the received signal with 0, 1, . . . , N−1 lags (or delays) of the reference code, wherein N is the length of the reference code. The correlator includes a spread spectrum signal storage means, subtraction means, multiplication means, correlation lag storage means and addition means configured such that a correlation lag for a present sampling instance is based on a correlation lag of a previous sampling instance.
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