System and method of detecting end of synchronization header of modulated signals
US10432391B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 10, 2018 |
| Grant date | Oct 1, 2019 |
| Priority date | — |
| Expiry date | Jul 10, 2038 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L25/03019
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A receiver of a modulated signal is presented. The receiver includes a synchronization detector configured to receive a signal indicative of the modulated signal that includes a synchronization header and a data payload, and to detect an end of the synchronization header. The synchronization detector is configured to generate a differential signal based on the signal, perform cross-correlation of the differential signal with a reference differential signal to generate a cross-correlation output, compare a first sample of the cross-correlation output at a sample index associated with a hypothesized start frame delimiter (SFD) peak index with a second sample of the cross-correlation output at a sample index associated with a hypothesized preamble peak index, and detect an end of the synchronization header in response to a comparison result in which a magnitude of the first sample is greater than a magnitude of the second sample of the cross-correlation output.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.