Range and velocity sensing system
US7576839B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 13, 2005 |
| Grant date | Aug 18, 2009 |
| Priority date | — |
| Expiry date | Sep 13, 2025 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S17/10
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The present invention relates to a method and apparatus used to calculate at least one velocity component for a target within the region. The invention employs an energy source which is activated using an activation system in a cyclic pattern with a selected source frequency. A receiver is also employed in conjunction with a shielding system where this shielding system is configured to block the sensing of reflected energy from the target in a cyclic pattern with a selected receiver frequency. The invention operates through measuring a frequency change in the source frequency of the energy source signal when received by the receiver and determines a velocity component for a target based on a measured frequency change for a known direction of travel. The invention may also be extended to provide a two or three dimensional velocity vector through the addition of further energy sources.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.