Signal, interference and noise power measurement
US7822154B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 6, 2002 |
| Grant date | Oct 26, 2010 |
| Priority date | — |
| Expiry date | Jul 16, 2026 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2027/0061
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Systems and methods are presented for measuring power levels of primary and interfering signals as well as noise, particularly for satellite transmitted signals. A typical method comprises the steps of receiving a signal comprising a primary signal, an interference signal and noise, demodulating the primary signal to remove a carrier frequency, decoding the primary signal to obtain symbols, estimating a power level of the primary signal based upon the demodulated and decoded primary signal. Additionally, an ideal primary signal can be generated from the carrier power and frequency and the symbols and subtracted from the received signal to produce the noise and interference signal. The noise and interference power is then estimated from the noise and interference signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.