System and method for sub-nyquist synchronization to a received signal in an impluse radio ultra-wide band reveiver
US12401391B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 23, 2023 |
| Grant date | Aug 26, 2025 |
| Priority date | — |
| Expiry date | Nov 10, 2043 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2027/0026
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A system and method for synchronizing to a received signal in an IR-UWB receiver including sampling the received signal in a frequency that is less than a Nyquist frequency of the received signal; for each part of the sampled received signal that is equal in length to a synchronization symbol: calculating a cross-correlation between the synchronization symbol and the part of the sampled received signal that is equal in length to the synchronization symbol; calculating at least one autocorrelation, where each autocorrelation is performed between the results of the cross-correlation and the results of the cross-correlation delayed by a time lag that equals one or more time-durations of the synchronization symbol; accumulating the results of each of the at least one autocorrelation to obtain at least one coarse synchronization window; and analyzing the at least one coarse synchronization window to detect presence of the synchronization symbol in the received signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.