Weight calculation method, weight calculation device, adaptive array antenna, and radar device
US7535410B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jul 25, 2007 |
| Grant date | May 19, 2009 |
| Priority date | — |
| Expiry date | Jul 25, 2027 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S7/2813
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A weight calculation method begins by storing a target reflection signal of a radar pulse received via an antenna in cells corresponding to positions along with a reception timing for a plurality of processing range cells having lengths equivalent to prescribed ranges on a time axis. The method continues by calculating weights by stage for the phase and amplitude of the target reflection signal to form a reception composite beam so that arrival directions of spurious elements become zero to an arrival direction of the target reflection signal by using values stored in the plurality of processing cells. The calculating of the weights monitors changes of specific variables indicating correlation values among stages in the plurality of processing stages to stop a shift to the next processing stage at the time when the variables exceed a reference value.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.