Electronic scanning type radar device and method for estimating direction of reception wave
US8730096B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 9, 2013 |
| Grant date | May 20, 2014 |
| Priority date | — |
| Expiry date | Apr 9, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S2013/93271
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An electronic scanning type radar device mounted on a moving body includes: a transmission unit transmitting a transmission wave; a reception unit comprising a plurality of antennas receiving a reflection wave of the transmission wave from a target; a beat signal generation unit generating a beat signal from the transmission wave and the reflection wave; a frequency resolution processing unit frequency computing a complex number data; a target detection unit detecting an existence of the target; a correlation matrix computation unit computing a correlation matrix from each of a complex number data of a detected beat frequency; a target consolidation processing unit linking the target in a present detection cycle and a past detection cycle; a correlation matrix filtering unit generating an averaged correlation matrix by weighted averaging a correlation matrix of a target in the present detection cycle and a correlation matrix of a related target in the past detection cycle; and a direction detection unit computing an arrival direction of the reflection wave based on the averaged correlation matrix.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.