Method and apparatus for determining the signal quality of a digital signal
US5386495A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Feb 1, 1993 |
| Grant date | Jan 31, 1995 |
| Priority date | — |
| Expiry date | Feb 1, 2013 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B17/20
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A receiver for receiving and decoding a carrier signal is described. The carrier signal is modulated with a digital signal. The receiver includes a receiver section (162) for demodulating the received carrier signal. The demodulated signal is then sent through an A/D converter (164) for converting the demodulated signal into a digital format. A digital signal processor (166) receives the digital format and calculates the autocorrelation function of the digital format. The digital signal processor (166) then computes the ratio of the autocorrelation at two different reference points and compares this value to a plurality of values stored in its memory locations. The plurality of stored values representing different signal quality measurements.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.