JP6781505B2 - 変位計測装置 - Google Patents
変位計測装置 Download PDFInfo
- Publication number
- JP6781505B2 JP6781505B2 JP2020515328A JP2020515328A JP6781505B2 JP 6781505 B2 JP6781505 B2 JP 6781505B2 JP 2020515328 A JP2020515328 A JP 2020515328A JP 2020515328 A JP2020515328 A JP 2020515328A JP 6781505 B2 JP6781505 B2 JP 6781505B2
- Authority
- JP
- Japan
- Prior art keywords
- relative phase
- radio wave
- frequencies
- averaging
- unit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S3/00—Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic, or electromagnetic waves, or particle emission, not having a directional significance, are being received
- G01S3/02—Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic, or electromagnetic waves, or particle emission, not having a directional significance, are being received using radio waves
- G01S3/14—Systems for determining direction or deviation from predetermined direction
- G01S3/46—Systems for determining direction or deviation from predetermined direction using antennas spaced apart and measuring phase or time difference between signals therefrom, i.e. path-difference systems
- G01S3/48—Systems for determining direction or deviation from predetermined direction using antennas spaced apart and measuring phase or time difference between signals therefrom, i.e. path-difference systems the waves arriving at the antennas being continuous or intermittent and the phase difference of signals derived therefrom being measured
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S3/00—Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic, or electromagnetic waves, or particle emission, not having a directional significance, are being received
- G01S3/02—Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic, or electromagnetic waves, or particle emission, not having a directional significance, are being received using radio waves
- G01S3/74—Multi-channel systems specially adapted for direction-finding, i.e. having a single antenna system capable of giving simultaneous indications of the directions of different signals
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S5/00—Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations
- G01S5/02—Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations using radio waves
- G01S5/06—Position of source determined by co-ordinating a plurality of position lines defined by path-difference measurements
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S5/00—Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations
- G01S5/02—Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations using radio waves
- G01S5/0205—Details
- G01S5/0218—Multipath in signal reception
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S5/00—Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations
- G01S5/02—Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations using radio waves
- G01S5/0273—Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations using radio waves using multipath or indirect path propagation signals in position determination
Description
図1は、本発明の実施の形態1に係る変位計測装置10の基本構成を示したブロック図である。
実施の形態2に係る変位計測装置は、基本構成上、図1の場合と同様であるが、細部の処理機能が相違する。
Claims (5)
- 計測点に設置される電波発信機と、固定点に設置される電波受信機と、を備えた変位計測装置であって、
前記電波発信機は、送信アンテナを介して複数周波数の電波を送信し、
前記電波受信機は、前記電波発信機の送信アンテナを介して、当該電波発信機から送信された前記複数周波数の電波の受信結果に基づいて、当該送信アンテナの測位値を演算し、
前記電波受信機は、
前記電波発信機から送信される前記複数周波数の電波の受信結果を示す受信信号を出力するM(但し、Mは2以上の正の整数とする)個の受信アンテナと、
前記M個の受信アンテナ間における相対位相を、前記複数周波数の分、平均化演算を施すことで合成する相対位相合成部と、
前記相対位相合成部で合成された相対位相を、前記M個の受信アンテナ間における観測位相差に基づいてシフトする相対位相シフト部と、
前記相対位相シフト部によるシフト後の相対位相に基づいて、前記送信アンテナの測位値を演算する測位演算部と、
を備える変位計測装置。 - 前記相対位相合成部は、
前記相対位相を前記複数周波数のそれぞれについて演算する相対位相演算部と、
前記複数周波数のそれぞれにおける相対位相を平均化演算する相対位相平均部と、
を含む請求項1に記載の変位計測装置。 - 前記相対位相合成部は、
前記M個の受信アンテナ毎の受信信号から相関行列を演算する相関行列演算部と、
前記相関行列を前記複数周波数の間で平均化演算する相関行列平均部と、
前記相関行列平均部で平均化された後の相関行列の最大固有値に対応する固有ベクトルから、相対位相を算出する最大固有ベクトル演算部と、
を含む請求項1に記載の変位計測装置。 - 前記相対位相シフト部は、前記相対位相平均部で平均化演算された後の相対位相を、前記電波発信機と前記M個の受信アンテナとの測位値より求めた相対位相の位置にシフトする
請求項2に記載の変位計測装置。 - 前記相対位相シフト部は、前記相対位相平均部で平均化演算された後の相対位相を、基準周波数の相対位相の初期値へシフトする
請求項2に記載の変位計測装置。
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/JP2018/016485 WO2019207628A1 (ja) | 2018-04-23 | 2018-04-23 | 変位計測装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPWO2019207628A1 JPWO2019207628A1 (ja) | 2020-07-30 |
JP6781505B2 true JP6781505B2 (ja) | 2020-11-04 |
Family
ID=68293622
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2020515328A Active JP6781505B2 (ja) | 2018-04-23 | 2018-04-23 | 変位計測装置 |
Country Status (4)
Country | Link |
---|---|
US (1) | US20210033695A1 (ja) |
EP (1) | EP3767321A4 (ja) |
JP (1) | JP6781505B2 (ja) |
WO (1) | WO2019207628A1 (ja) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN113362569B (zh) * | 2021-05-24 | 2022-12-06 | 机械工业第九设计研究院股份有限公司 | 一种土木工程用护坡滑坡监测方法及检测系统及方法 |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS602403B2 (ja) | 1976-05-12 | 1985-01-21 | 旭化成株式会社 | ビスコ−スレ−ヨンの製造法 |
JP3602403B2 (ja) * | 2000-03-24 | 2004-12-15 | 三菱電機株式会社 | 構造物の震動変位計測装置 |
JP2007024642A (ja) * | 2005-07-14 | 2007-02-01 | Ntt Docomo Inc | 到来波方向推定装置、到来波方向推定方法および位置推定システム |
JP4980094B2 (ja) * | 2007-02-16 | 2012-07-18 | 三菱電機株式会社 | 変位計測装置 |
JP5046797B2 (ja) * | 2007-08-27 | 2012-10-10 | 三菱電機株式会社 | 変位計測装置 |
JP4591565B2 (ja) * | 2008-07-14 | 2010-12-01 | ソニー株式会社 | 受信装置、無線通信システム、位置推定方法、及びプログラム |
JP2015201783A (ja) * | 2014-04-09 | 2015-11-12 | 住友電気工業株式会社 | 監視装置 |
-
2018
- 2018-04-23 WO PCT/JP2018/016485 patent/WO2019207628A1/ja unknown
- 2018-04-23 JP JP2020515328A patent/JP6781505B2/ja active Active
- 2018-04-23 EP EP18916112.8A patent/EP3767321A4/en not_active Withdrawn
-
2020
- 2020-10-16 US US17/072,153 patent/US20210033695A1/en not_active Abandoned
Also Published As
Publication number | Publication date |
---|---|
JPWO2019207628A1 (ja) | 2020-07-30 |
EP3767321A1 (en) | 2021-01-20 |
EP3767321A4 (en) | 2021-03-17 |
WO2019207628A1 (ja) | 2019-10-31 |
US20210033695A1 (en) | 2021-02-04 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP5938737B2 (ja) | レーダ装置 | |
US5546090A (en) | Method and apparatus for calibrating antenna arrays | |
JP6818541B2 (ja) | レーダ装置および測位方法 | |
US6366240B1 (en) | Location of aircraft with time difference of arrival | |
US9470784B2 (en) | Radar device | |
WO2010059690A2 (en) | Compensation of beamforming errors in a communications system having widely spaced antenna elements | |
AU2017200628B2 (en) | Method for calibrating a satellite radio navigation receiver | |
JP3600459B2 (ja) | 電波到来方向推定方法及びその装置 | |
JP2006349515A (ja) | 変位計測システム及び変位計測方法 | |
JP2006304205A (ja) | アンテナ位相較正装置及びそれを用いた追尾アンテナ装置 | |
JP2016138787A (ja) | パッシブレーダ装置 | |
JP6781505B2 (ja) | 変位計測装置 | |
EP3145093B1 (en) | Calibration device | |
JP5694240B2 (ja) | 追尾アンテナ装置および送信位相補償方法 | |
JP5730506B2 (ja) | 到来方向標定装置および位置標定装置 | |
JP4397732B2 (ja) | 測位装置 | |
JP6403704B2 (ja) | 測位装置 | |
JP2005195347A (ja) | 方探センサ及び電波発射源位置推定システム | |
JP4193939B2 (ja) | アレーアンテナ、到来波推定装置、及び平面アレーの合成方法 | |
KR101241926B1 (ko) | 위상차 오차 추정에 의한 3차원 인터페로미터 어레이용 레이돔의 적합성 판정방법 | |
KR102059689B1 (ko) | 차량 레이다용 각도 추정 방법 및 장치 | |
JP7482804B2 (ja) | アンテナ校正システム | |
JP2023111290A (ja) | 電波到来方向推定装置及び電波到来方向推定方法 | |
JP4368866B2 (ja) | 測位装置 | |
US20220397642A1 (en) | Calibration system for calibrating radar device mounted on vehicular apparatus |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
A621 | Written request for application examination |
Free format text: JAPANESE INTERMEDIATE CODE: A621 Effective date: 20200416 |
|
A871 | Explanation of circumstances concerning accelerated examination |
Free format text: JAPANESE INTERMEDIATE CODE: A871 Effective date: 20200416 |
|
A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20200428 |
|
A975 | Report on accelerated examination |
Free format text: JAPANESE INTERMEDIATE CODE: A971005 Effective date: 20200609 |
|
A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20200623 |
|
A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20200730 |
|
TRDD | Decision of grant or rejection written | ||
A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 20200915 |
|
A61 | First payment of annual fees (during grant procedure) |
Free format text: JAPANESE INTERMEDIATE CODE: A61 Effective date: 20201013 |
|
R150 | Certificate of patent or registration of utility model |
Ref document number: 6781505 Country of ref document: JP Free format text: JAPANESE INTERMEDIATE CODE: R150 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |