Angle estimating apparatus and angle estimating method
US10852410B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 8, 2015 |
| Grant date | Dec 1, 2020 |
| Priority date | — |
| Expiry date | Feb 9, 2037 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S13/931
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A receiving circuit uses a weight set by calibration to weight signals incident to receiving elements. A storing unit stores a measured value of a mode vector reflecting characteristics of the receiving circuit in an error-free state of the weight for the receiving circuit characteristics and further correlates and stores an incident signal angle estimated by an estimating unit, and for the error-free state, a calculation result of an evaluation value by an evaluation function capable of calculating the evaluation value, which varies according to the incident signal angle and error. A detecting unit calculates the evaluation value based on the stored measured value of the mode vector and the evaluation function and detects an occurrence of the error based on comparison of the calculated evaluation value and the stored evaluation value, when the estimated incident signal angle corresponds to a value close to the stored incident signal angle.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.