Multiple demodulation frequency Doppler
US4534357A · kind A · utility
18Cited by
3References
3Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 19, 1984 |
| Grant date | Aug 13, 1985 |
| Priority date | — |
| Expiry date | Apr 19, 2004 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S15/584
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The device uses two Doppler receivers having different center frequencies. After the mean Doppler frequency of each receiver is determined, one of the mean Doppler frequencies is subtracted from the other one of the mean Doppler frequencies, thereby providing the mean Doppler frequency associated with a frequency which is equal to the difference between the two original frequencies. As this difference frequency is much lower than either of the two original frequencies, the resulting difference mean Doppler frequency will not be aliased
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.