JP2010526318A - アクティブレーダシステム - Google Patents
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- 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
- G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
- G01S13/88—Radar or analogous systems specially adapted for specific applications
- G01S13/93—Radar or analogous systems specially adapted for specific applications for anti-collision purposes
- G01S13/931—Radar or analogous systems specially adapted for specific applications for anti-collision purposes of land vehicles
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q15/00—Devices for reflection, refraction, diffraction or polarisation of waves radiated from an antenna, e.g. quasi-optical devices
- H01Q15/0006—Devices acting selectively as reflecting surface, as diffracting or as refracting device, e.g. frequency filtering or angular spatial filtering devices
- H01Q15/0086—Devices acting selectively as reflecting surface, as diffracting or as refracting device, e.g. frequency filtering or angular spatial filtering devices said selective devices having materials with a synthesized negative refractive index, e.g. metamaterials or left-handed materials
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q15/00—Devices for reflection, refraction, diffraction or polarisation of waves radiated from an antenna, e.g. quasi-optical devices
- H01Q15/02—Refracting or diffracting devices, e.g. lens, prism
- H01Q15/10—Refracting or diffracting devices, e.g. lens, prism comprising three-dimensional array of impedance discontinuities, e.g. holes in conductive surfaces or conductive discs forming artificial dielectric
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q25/00—Antennas or antenna systems providing at least two radiating patterns
- H01Q25/002—Antennas or antenna systems providing at least two radiating patterns providing at least two patterns of different beamwidth; Variable beamwidth antennas
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q3/00—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system
- H01Q3/26—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the relative phase or relative amplitude of energisation between two or more active radiating elements; varying the distribution of energy across a radiating aperture
- H01Q3/2658—Phased-array fed focussing structure
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- 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
- G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
- G01S13/88—Radar or analogous systems specially adapted for specific applications
- G01S13/93—Radar or analogous systems specially adapted for specific applications for anti-collision purposes
- G01S13/931—Radar or analogous systems specially adapted for specific applications for anti-collision purposes of land vehicles
- G01S2013/9314—Parking operations
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- 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
- G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
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- G01S13/93—Radar or analogous systems specially adapted for specific applications for anti-collision purposes
- G01S13/931—Radar or analogous systems specially adapted for specific applications for anti-collision purposes of land vehicles
- G01S2013/932—Radar or analogous systems specially adapted for specific applications for anti-collision purposes of land vehicles using own vehicle data, e.g. ground speed, steering wheel direction
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- 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
- G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
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- G01S13/93—Radar or analogous systems specially adapted for specific applications for anti-collision purposes
- G01S13/931—Radar or analogous systems specially adapted for specific applications for anti-collision purposes of land vehicles
- G01S2013/9321—Velocity regulation, e.g. cruise control
-
- 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
- G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
- G01S13/88—Radar or analogous systems specially adapted for specific applications
- G01S13/93—Radar or analogous systems specially adapted for specific applications for anti-collision purposes
- G01S13/931—Radar or analogous systems specially adapted for specific applications for anti-collision purposes of land vehicles
- G01S2013/9327—Sensor installation details
- G01S2013/93271—Sensor installation details in the front of the vehicles
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- 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
- G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
- G01S13/88—Radar or analogous systems specially adapted for specific applications
- G01S13/93—Radar or analogous systems specially adapted for specific applications for anti-collision purposes
- G01S13/931—Radar or analogous systems specially adapted for specific applications for anti-collision purposes of land vehicles
- G01S2013/9327—Sensor installation details
- G01S2013/93272—Sensor installation details in the back of the vehicles
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- 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
- G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
- G01S13/88—Radar or analogous systems specially adapted for specific applications
- G01S13/93—Radar or analogous systems specially adapted for specific applications for anti-collision purposes
- G01S13/931—Radar or analogous systems specially adapted for specific applications for anti-collision purposes of land vehicles
- G01S2013/9327—Sensor installation details
- G01S2013/93274—Sensor installation details on the side of the vehicles
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- 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
- G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
- G01S13/88—Radar or analogous systems specially adapted for specific applications
- G01S13/93—Radar or analogous systems specially adapted for specific applications for anti-collision purposes
- G01S13/931—Radar or analogous systems specially adapted for specific applications for anti-collision purposes of land vehicles
- G01S2013/9327—Sensor installation details
- G01S2013/93275—Sensor installation details in the bumper area
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- 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
- G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
- G01S13/88—Radar or analogous systems specially adapted for specific applications
- G01S13/93—Radar or analogous systems specially adapted for specific applications for anti-collision purposes
- G01S13/931—Radar or analogous systems specially adapted for specific applications for anti-collision purposes of land vehicles
- G01S2013/9327—Sensor installation details
- G01S2013/93277—Sensor installation details in the lights
Landscapes
- Engineering & Computer Science (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Computer Networks & Wireless Communication (AREA)
- General Physics & Mathematics (AREA)
- Radar Systems Or Details Thereof (AREA)
- Aerials With Secondary Devices (AREA)
- Details Of Aerials (AREA)
Abstract
Description
本願は、2007年5月4日に出願された米国特許出願第11/744,503号明細書の優先権を主張するものであり、この米国特許出願の内容は参照により本明細書に援用される。
本発明の例では、能動レンズにより、車両運転者および/または車両制御システムによって必要とされるように、または制御されるように、例えば、長距離ナロービームからより短い距離のワイドビームにレーダビームを調整することができる。レンズは、ビーム幅および/または走査角度等のビーム属性を変更するように調整可能な、レーダ周波数での屈折率等の属性を有する活物質を含む。活物質の屈折率は、電子制御回路によって提供される電子制御入力を使用して制御され得る。
いくつかの例では、活物質はメタマテリアルを含む。従来のレンズは、負の屈折率または屈折率の大きな勾配が可能ではなかったが、これは、メタマテリアルを使用して得ることができる。メタマテリアルでは、誘電率および/または透磁率を、例えばよりよいインピーダンス整合のために調整することができる。
車両は通常、車両の前部にグリルを有し、グリルは、空気を流入させラジエータを通過させる開口部を有する。グリルは、多くの場合、車両の外観の重要な側面であり、グリルに取り付けられた従来のレーダ装置は、車両の外観を大きく損ない得る。
本発明の実施形態によるレーダシステムは、車両の前部、例えば、上述したように車両グリルの近傍に配置され得る。他の可能な場所としては、車両の後部、側部、例えば、バンパー組立体(フロンバンパーおよび/またはリアバンパー)内、照明装置、トリムピース、または他の車両部品が挙げられる。車両は、複数のアンテナおよび本発明の実施形態によるレンズ組立体を有し得る。
動作モードは、車間距離制御(ACC)および/または衝突前感知(PCS)用の狭走査角度・高分解能ビーム幅モード、割り込み検出、PCS強化、および/または歩行者検出用の中走査角度・中ビーム幅モード、ならびに都市部での歩行者検出、駐車支援、または他の用途に使用される広走査角度・低分解能ビーム幅モードを含み得る。単一の装置が、これら動作モードのうちの2つ以上を提供し得る。
光学イメージングシステムは、大型で高価なことが多い。従来の視覚システムおよびIRシステムは、埃または氷の蓄積によって制限され得る、遮られない見通し線を必要とする。したがって、車両用途へのこのようなシステムの使用は制限されている。本発明の実施形態による改良されたレーダシステムは、従来の視覚システムおよびIRカメラシステムに代えて(またはこれらを増強するために)使用することができる。コンパクトミリメートル(またはサブミリメートル)波イメージングシステムをレーダレンジングおよび/または距離測定機能と組み合わせて、改良された多機能装置を提供することができる。
レーダ装置は、パルスレーダとして動作することができ、パルス反復周波数は所定の値であってもよく、または車両環境内の物体の推定距離または実測距離を使用して選択されてもよい。能動レンズを使用して、レーダ装置の視野を迅速に変化させることができ、それにより、データを比較的広い視野および狭い視野から収集することができる。異なる動作モードからのデータは、逐次、重なった、または同時の時間間隔にわたって収集され得る。
本発明の実施形態によるレーダ装置は、通信機能を有することもできる。データは、レーダアンテナによって送信または受信されるレーダビームを介して搬送され得る。能動レンズは、ビーム幅および/またはビームステアリング用途に使用され得る。
Claims (20)
- 車両用のレーダシステムである装置であって、
レーダビームを生成するように動作可能なレーダアンテナと、
能動レンズを含むレンズ組立体であって、前記レーダビームが通る、レンズ組立体と
を備え、
前記レーダビームは、前記能動レンズを使用して調整可能な視野を有する、装置。 - 前記能動レンズはメタマテリアルを含み、前記メタマテリアルは調整可能な属性を有し、
前記視野は、前記メタマテリアルの前記調整可能な属性を使用して調整可能である、請求項1に記載の装置。 - 前記調整可能な属性は、レーダビーム周波数での屈折率である、請求項1に記載の装置。
- 前記レンズ組立体は車両部品を含む、請求項1に記載の装置。
- 前記車両部品はグリル部品である、請求項4に記載の装置。
- 前記車両部品は車両エンブレムである、請求項4に記載の装置。
- 前記車両部品はバンパー部品である、請求項4に記載の装置。
- 第1の視野を有する第1の動作モードおよび第2の視野を有する第2の動作モードを有し、
前記第2の視野は、前記第1の視野よりも広い、請求項1に記載の装置。 - 前記第1の動作モードは前記車両の車間距離制御を支援する、請求項8に記載の装置。
- 前記第2の動作モードは前記車両の駐車支援システムを支援する、請求項8に記載の装置。
- 前記第2の動作モードは前記車両の歩行者検出システムを支援する、請求項8に記載の装置。
- 前記レーダビームはビーム幅を有し、前記視野は前記ビーム幅におおよそ等しい、請求項1に記載の装置。
- 前記レーダビームは走査角度を走査し、前記視野は前記走査角度におおよそ等しい、請求項1に記載の装置。
- 電子制御信号を前記能動レンズに提供するように動作可能な電子回路をさらに備え、
前記ビームの前記視野は、前記電子制御信号を使用して調整可能である、請求項1に記載の装置。 - 前記電子回路は前記車両から速度信号を受信する、請求項14に記載の装置。
- 前記メタマテリアルは、スイッチによって相互接続された導電要素を構成し、
前記スイッチは、前記電子制御信号を使用して選択的に開閉される、請求項14に記載の装置。 - 前記メタマテリアルは、多層プリント回路基板組立体を構成する、請求項16に記載の装置。
- 車両用のレーダシステムである装置であって、
レーダビームを生成するように動作可能なレーダアンテナと、
前記レーダビームが通る、能動レンズを含むレンズ組立体と、
電子制御信号を前記能動レンズに提供するように動作可能な電子回路と
を備え、
前記ビームの視野は、前記電子制御信号を使用して調整可能である、装置。 - 前記能動レンズはメタマテリアルを含み、前記視野は、前記メタマテリアルの調整可能な屈折率を使用して調整可能である、請求項18に記載の装置。
- 前記レンズ組立体は車両部品を含む、請求項18に記載の装置。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11/744,503 US7724180B2 (en) | 2007-05-04 | 2007-05-04 | Radar system with an active lens for adjustable field of view |
US11/744,503 | 2007-05-04 | ||
PCT/US2008/062160 WO2008137509A1 (en) | 2007-05-04 | 2008-05-01 | Active radar system |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2010526318A true JP2010526318A (ja) | 2010-07-29 |
JP5264888B2 JP5264888B2 (ja) | 2013-08-14 |
Family
ID=39939183
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2010507534A Expired - Fee Related JP5264888B2 (ja) | 2007-05-04 | 2008-05-01 | アクティブレーダシステム |
Country Status (4)
Country | Link |
---|---|
US (1) | US7724180B2 (ja) |
JP (1) | JP5264888B2 (ja) |
DE (1) | DE112008001232B4 (ja) |
WO (1) | WO2008137509A1 (ja) |
Cited By (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2010204440A (ja) * | 2009-03-04 | 2010-09-16 | Tamron Co Ltd | 光学特性可変装置 |
JP2012083758A (ja) * | 2010-10-12 | 2012-04-26 | Toyota Motor Engineering & Manufacturing North America Inc | 半透明反射器 |
JP2013506884A (ja) * | 2009-10-06 | 2013-02-28 | デューク ユニバーシティ | 球面収差の無い屈折率分布型レンズと方法 |
WO2013171969A1 (ja) | 2012-05-16 | 2013-11-21 | ソニー株式会社 | 撮像光学系、撮像装置 |
KR20160008963A (ko) * | 2014-07-14 | 2016-01-25 | 팔로 알토 리서치 센터 인코포레이티드 | 메타물질-기반의 물체-검출 시스템 |
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Also Published As
Publication number | Publication date |
---|---|
US7724180B2 (en) | 2010-05-25 |
US20080272955A1 (en) | 2008-11-06 |
JP5264888B2 (ja) | 2013-08-14 |
DE112008001232T5 (de) | 2010-04-22 |
DE112008001232B4 (de) | 2016-04-07 |
WO2008137509A1 (en) | 2008-11-13 |
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