Radar beam scanning method, on-vehicle radar apparatus and radar scanning computer program
US6856277B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 8, 2003 |
| Grant date | Feb 15, 2005 |
| Priority date | — |
| Expiry date | Sep 8, 2023 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S7/4091
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
In the on-vehicle radar apparatus of the present invention, the vertical scanning width of the radar beam is narrowed, before the horizontal scanning, thereby avoiding unnecessary data processing and improving the data processing efficiently. Further, the S/N ratio of the target detection signal is increased, thereby stabilizing the distance detection and its accuracy. The vertical scanning antenna is a single travelling wave excitation antenna (TWEA) constructed by a plurality of antenna elements. At the same time, the horizontal scanning antenna is a multi-channel antenna wherein a plurality of TWEAs is assigned to a plurality of horizontal directions. The horizontal scanning angle is arbitrarily widened by increasing the number of TWEAs.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.