High speed demux parallel correlator system
US6408017B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 21, 1993 |
| Grant date | Jun 18, 2002 |
| Priority date | — |
| Expiry date | Dec 21, 2013 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B1/708
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
In a high speed, high processing gain PN spread spectrum acquisition system an analog signal comprising a high speed PN code is received and converted to a high speed digital format. A demuxer is employed to divided the high speed digital signal into lower speed multiplexed portions. The lower speed multiplexed portions of the digital signal are processed in a plurality of parallel channels which employ correlators coupled to coherent accumulators and non-coherent accumulators coupled to the output of the coherent accumulators to provide a signal having sufficient energy to permit detection of one of a plurality of partial PN replica codes as the one code which is synchronized with the received analog signal comprising a high speed PN code and to synchronize with the PN replica code generator.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.