One bit matched filter with low complexity and high speed
US6157684A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 14, 1998 |
| Grant date | Dec 5, 2000 |
| Priority date | — |
| Expiry date | Oct 14, 2018 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F17/15
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
Described is an one bit matched filter for generating a sequences of correlations between a signal bit stream and a sample stream of n sample bits. The n sample bits are arranged in a rang of n bit positions n, n-1, . . . , 2, 1. Among the n sample bits, m boundary positions are defined based on the bit pattern of the sample stream, where m<n. At a specific time T(k), the m boundary positions are used to generate a Contribution (k) for a section of signal bits that are shifted into the n bit positions. At the time T(k), a Correlation (k) is generated by adding the Contribution (k) with the Correlation (k-1) that was generated at the previous time T(k-1).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.