Instantaneous frequency measurement apparatus and method
US5168215A · kind A · utility
18Cited by
4References
14Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 15, 1991 |
| Grant date | Dec 1, 1992 |
| Priority date | — |
| Expiry date | Nov 15, 2011 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S7/021
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An apparatus and method for measuring the frequencies of a pair of signals simultaneously present in a composite signal, comprising the steps of includes components for squaring the composite signal, filtering the squared signal for separating a first pass band and a higher frequency second pass band, instantaneously measuring the frequencies of the first and second pass bands and determining the individual frequencies of the pair of signals from the measured frequencies of the first and second pass bands.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.