JP7240121B2 - 目標物検出システム - Google Patents
目標物検出システム Download PDFInfo
- Publication number
- JP7240121B2 JP7240121B2 JP2018185106A JP2018185106A JP7240121B2 JP 7240121 B2 JP7240121 B2 JP 7240121B2 JP 2018185106 A JP2018185106 A JP 2018185106A JP 2018185106 A JP2018185106 A JP 2018185106A JP 7240121 B2 JP7240121 B2 JP 7240121B2
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- JP
- Japan
- Prior art keywords
- light
- target
- transition
- time
- inspection
- 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.)
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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
- G01S17/00—Systems using the reflection or reradiation of electromagnetic waves other than radio waves, e.g. lidar systems
- G01S17/02—Systems using the reflection of electromagnetic waves other than radio waves
- G01S17/06—Systems determining position data of a target
- G01S17/46—Indirect determination of position data
- G01S17/48—Active triangulation systems, i.e. using the transmission and reflection of electromagnetic waves other than radio waves
-
- 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
- G01S17/00—Systems using the reflection or reradiation of electromagnetic waves other than radio waves, e.g. lidar systems
- G01S17/003—Bistatic lidar systems; Multistatic lidar systems
-
- 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
- G01S17/00—Systems using the reflection or reradiation of electromagnetic waves other than radio waves, e.g. lidar systems
- G01S17/02—Systems using the reflection of electromagnetic waves other than radio waves
- G01S17/04—Systems determining the presence of a target
-
- 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
- G01S17/00—Systems using the reflection or reradiation of electromagnetic waves other than radio waves, e.g. lidar systems
- G01S17/02—Systems using the reflection of electromagnetic waves other than radio waves
- G01S17/06—Systems determining position data of a target
- G01S17/46—Indirect determination of position data
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Optical Radar Systems And Details Thereof (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
Description
10 目標物
12 送信装置
14 受信装置
22 検査光送信部
26 参照光送信部
30 光検出部
44 散乱光処理部
46 目標物検出部
Claims (2)
- 送信装置と、前記送信装置から離隔している受信装置と、を含んで構成された目標物検出システムであって、
前記送信装置は、
検査光を送信する検査光送信部と、
参照光を前記受信装置に送信する参照光送信部と、
を備え、
前記受信装置は、
受信した光から、前記検査光の送信経路において散乱された散乱光および前記参照光を検出する光検出部と、
受信した前記散乱光の強度の時間推移を導出する散乱光処理部と、
前記散乱光の強度の時間推移に基づいて目標物を検出する目標物検出部と、
を備え、
前記目標物検出部は、
前記散乱光の強度が、所定の第1推移よりも大きな所定の第2推移よりも大きい場合、ステルス化されていない目標物があると判定し、
前記散乱光の強度が、前記第2推移よりも大きくならずに前記第1推移以下となった場合、ステルス化された目標物があると判定し、前記第1推移以下となった時刻と前記参照光の受信時刻との時間差に基づいて、前記第1推移以下となった時刻に対応する前記送信経路上の位置を、ステルス化された目標物の位置として導出する目標物検出システム。 - 前記送信装置および前記受信装置は、各々空中に位置する請求項1に記載の目標物検出システム。
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2018185106A JP7240121B2 (ja) | 2018-09-28 | 2018-09-28 | 目標物検出システム |
US16/514,579 US11346948B2 (en) | 2018-09-28 | 2019-07-17 | Target detection system to determine position of target using scattered light and a reference light |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2018185106A JP7240121B2 (ja) | 2018-09-28 | 2018-09-28 | 目標物検出システム |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2020056586A JP2020056586A (ja) | 2020-04-09 |
JP7240121B2 true JP7240121B2 (ja) | 2023-03-15 |
Family
ID=69945435
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2018185106A Active JP7240121B2 (ja) | 2018-09-28 | 2018-09-28 | 目標物検出システム |
Country Status (2)
Country | Link |
---|---|
US (1) | US11346948B2 (ja) |
JP (1) | JP7240121B2 (ja) |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20160041266A1 (en) | 2014-08-11 | 2016-02-11 | Gerard Dirk Smits | Three-dimensional triangulation and time-of-flight based tracking systems and methods |
JP2017032459A (ja) | 2015-08-04 | 2017-02-09 | 日本電気株式会社 | 目標識別レーザ観測システム |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0394185A (ja) | 1989-09-06 | 1991-04-18 | Mitsubishi Electric Corp | レーダシステム |
JPH11237475A (ja) * | 1998-02-19 | 1999-08-31 | Mitsubishi Electric Corp | レーダ装置及びこのレーダ装置における目標散乱点検出方法 |
DE10112833C1 (de) * | 2001-03-16 | 2003-03-13 | Hilti Ag | Verfahren und Einrichtung zur elektrooptischen Distanzmessung |
JP5955458B2 (ja) * | 2013-04-30 | 2016-07-20 | 三菱電機株式会社 | レーザレーダ装置 |
DE112018007552B4 (de) * | 2018-06-12 | 2022-03-10 | Mitsubishi Electric Corporation | Optische-Distanz-Messungseinrichtung und Bearbeitungseinrichtung |
-
2018
- 2018-09-28 JP JP2018185106A patent/JP7240121B2/ja active Active
-
2019
- 2019-07-17 US US16/514,579 patent/US11346948B2/en active Active
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20160041266A1 (en) | 2014-08-11 | 2016-02-11 | Gerard Dirk Smits | Three-dimensional triangulation and time-of-flight based tracking systems and methods |
JP2017032459A (ja) | 2015-08-04 | 2017-02-09 | 日本電気株式会社 | 目標識別レーザ観測システム |
Also Published As
Publication number | Publication date |
---|---|
US20200103528A1 (en) | 2020-04-02 |
JP2020056586A (ja) | 2020-04-09 |
US11346948B2 (en) | 2022-05-31 |
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