Title:
OBJECT-SENSING DEVICE, OBJECT-SENSING METHOD, AND PROGRAM
Document Type and Number:
WIPO Patent Application WO/2023/073794
Kind Code:
A1
Abstract:
This object-sensing device (1000) comprises a transmission unit (1101) for irradiating a subject (1003) with electric waves (1002) using a transmission antenna, a reception unit (1102) for receiving an electric wave reflected by the subject (1003) using a reception antenna and generating an intermediate-frequency signal, and a computation device (1211). The computation device (1211) detects the reflection intensity of the subject (1003) from the intermediate-frequency signal, and furthermore detects the positional distribution of the subject (1003) from the reflection intensity. The computation device (1211) next calculates the dependence of the reflection intensity on the positional distribution of the subject as a reflection intensity correction amount from the detected positional distribution. The computation device (1211) corrects the reflection intensity using the reflection intensity correction amount, thereby removing the dependence on the positional distribution of the subject from the reflection intensity and calculating a corrected reflection intensity that depends on only characteristics (e.g., reflectance and permittivity) that are inherent to the material of the subject (1003).
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Inventors:
YAMANOUCHI SHINGO (JP)
ARIYOSHI MASAYUKI (JP)
ARIYOSHI MASAYUKI (JP)
Application Number:
PCT/JP2021/039403
Publication Date:
May 04, 2023
Filing Date:
October 26, 2021
Export Citation:
Assignee:
NEC CORP (JP)
International Classes:
G01N22/00; G01S7/02; G01S7/41; G01S13/88
Foreign References:
| JP2017032455A | 2017-02-09 | |||
| JP2005265817A | 2005-09-29 | |||
| JP2004245742A | 2004-09-02 | |||
| JP2016138858A | 2016-08-04 | |||
| US20080079625A1 | 2008-04-03 |
Attorney, Agent or Firm:
HAYAMI Shinji (JP)
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