Estimation method, estimation device, and recording medium
US11255955B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 9, 2019 |
| Grant date | Feb 22, 2022 |
| Priority date | — |
| Expiry date | May 6, 2040 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S13/12
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An estimation method according to the present disclosure includes: extracting, from a plurality of calculated complex transfer functions, living body components respectively corresponding to N reception antenna elements and affected by a living body; calculating a correlation matrix based on the extracted living body components respectively corresponding to the N reception antenna elements; computing one or more eigenvalues of the calculated correlation matrix; estimating a credibility of an estimation result of estimating the position or the direction of a living body in a target space, using the one or more computed eigenvalues and living body count information indicating a value indicating a total number of living bodies in the target space; and estimating the position or the direction of the living body via a predetermined method, based on the correlation matrix, according to the credibility of the estimation result.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.