Digital modulation signal measuring device and method capable of evaluating spectrum of noise component
US6754260B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 12, 2000 |
| Grant date | Jun 22, 2004 |
| Priority date | — |
| Expiry date | Dec 12, 2020 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2027/0048
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A digital modulation signal measuring device of the present invention is designed to generate a signal string of an ideal base band component after correcting frequency deviation of a base band component included in a digital modulation signal to be measured, detect a noise component included in the digital modulation signal based on this ideal base band component, and output (display) the spectrum of the detected noise component together with the spectrum of the base band component. Therefore, according to the digital modulation signal measuring device of the present invention, it is possible to easily recognize the quality of a noise component included in a digital modulation signal during actual transmission of the digital modulation signal, to guess the cause of generating the noise and to improve the transfer quality at easy.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.