Signal classification methods for scanning receiver and other applications
US7035593B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 22, 2004 |
| Grant date | Apr 25, 2006 |
| Priority date | — |
| Expiry date | May 24, 2024 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R29/02
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Signal classification techniques for classifying signals occurring in a frequency band using a plurality of classifier procedures each dedicated to identify a particular signal or signal type. The classification procedures operate on spectrum activity data that may include pulse event data describing particular types of signal pulses occurring in the frequency band, power versus frequency data for sampling intervals of activity in a frequency band and/or raw analog-to-digital converter samples take of a received signal. The signal classification techniques are useful to identify wireless radio signals or other radio emissions occurring in an unlicensed radio frequency band. One type of classification procedure is a pulse timing template that is compared against accumulated signal pulse data to determine occurrence of a particular signal type. To enhance the pulse timing template signal classifier, techniques are provided to examine the center frequency distribution of signal pulses that match the timing template in order to confirm that certain signal pulses are associated with a particular frequency hopping signal type. This is particularly useful when the accumulated signal pulse…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.