Vehicular traffic surveillance doppler radar system
US7227494B2 · kind B2 · utility
15Cited by
50References
20Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 11, 2006 |
| Grant date | Jun 5, 2007 |
| Priority date | — |
| Expiry date | Apr 11, 2026 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S13/87
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A vehicular traffic surveillance Doppler radar system and method for use of the same are disclosed. In one embodiment, the system comprises a modulation circuit portion for generating modulated FM signals. An antenna circuit portion transmits the modulated FM signals to a target and receives the reflected modulated FM signals therefrom. A ranging circuit portion performs a quadrature demodulation on the reflected modulated FM signals and determines a range measurement based upon phase angle measurements derived therefrom.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.