Resolution filter for a spectrum analyzer
US6763323B2 · kind B2 · utility
2Cited by
4References
6Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 5, 2002 |
| Grant date | Jul 13, 2004 |
| Priority date | — |
| Expiry date | Mar 19, 2022 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R23/173
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A spectrum analyzer comprises a mixer, which mixes complex conjugate input signal v*(t) into a base band signal x(t) and a resolution filter, which filters the base band signal for narrow band. In accordance with two aspects of the invention, the resolution filter has either a complex pulse response hused(t)=C1·e−C2·t2·e−j·C3·t2 or a real pulse response hused(t)=C4·e−C5·t2, in which C1, C2, C3, C4 and C5 are constants.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.