Receiver with coherent matched filter
US9992011B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Mar 17, 2017 |
| Grant date | Jun 5, 2018 |
| Priority date | — |
| Expiry date | Mar 17, 2037 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B1/7093
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
In one implementation, a receiver has a module to calculate the cross-correlation between a portion of a digital representation of a received signal and a reference signal. The receiver also has a module to generate an estimate of a portion of a message potentially included in the digital representation of the received signal and a screening module to determine the likelihood that the received signal includes a message. For a received signal that is determined likely to include a message, the receiver includes a carrier refinement module to shift the frequency of carrier pulses in the digital representation of the received signal toward a desired frequency and to align the phase of carrier pulses in the digital representation of the received signal with a desired phase and a coherent matched filter to recover the message from the digital representation of the received signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.