JP7154386B2 - レーダ装置 - Google Patents
レーダ装置 Download PDFInfo
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- JP7154386B2 JP7154386B2 JP2021508433A JP2021508433A JP7154386B2 JP 7154386 B2 JP7154386 B2 JP 7154386B2 JP 2021508433 A JP2021508433 A JP 2021508433A JP 2021508433 A JP2021508433 A JP 2021508433A JP 7154386 B2 JP7154386 B2 JP 7154386B2
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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
- G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
- G01S7/02—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S13/00
- G01S7/40—Means for monitoring or calibrating
- G01S7/4004—Means for monitoring or calibrating of parts of a radar system
-
- 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
- G01S13/02—Systems using reflection of radio waves, e.g. primary radar systems; Analogous systems
- G01S13/06—Systems determining position data of a target
- G01S13/08—Systems for measuring distance only
- G01S13/32—Systems for measuring distance only using transmission of continuous waves, whether amplitude-, frequency-, or phase-modulated, or unmodulated
- G01S13/34—Systems for measuring distance only using transmission of continuous waves, whether amplitude-, frequency-, or phase-modulated, or unmodulated using transmission of continuous, frequency-modulated waves while heterodyning the received signal, or a signal derived therefrom, with a locally-generated signal related to the contemporaneously transmitted signal
- G01S13/343—Systems for measuring distance only using transmission of continuous waves, whether amplitude-, frequency-, or phase-modulated, or unmodulated using transmission of continuous, frequency-modulated waves while heterodyning the received signal, or a signal derived therefrom, with a locally-generated signal related to the contemporaneously transmitted signal using sawtooth modulation
-
- 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
- G01S13/02—Systems using reflection of radio waves, e.g. primary radar systems; Analogous systems
- G01S13/06—Systems determining position data of a target
- G01S13/08—Systems for measuring distance only
- G01S13/32—Systems for measuring distance only using transmission of continuous waves, whether amplitude-, frequency-, or phase-modulated, or unmodulated
- G01S13/34—Systems for measuring distance only using transmission of continuous waves, whether amplitude-, frequency-, or phase-modulated, or unmodulated using transmission of continuous, frequency-modulated waves while heterodyning the received signal, or a signal derived therefrom, with a locally-generated signal related to the contemporaneously transmitted signal
- G01S13/345—Systems for measuring distance only using transmission of continuous waves, whether amplitude-, frequency-, or phase-modulated, or unmodulated using transmission of continuous, frequency-modulated waves while heterodyning the received signal, or a signal derived therefrom, with a locally-generated signal related to the contemporaneously transmitted signal using triangular modulation
-
- 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
- G01S13/02—Systems using reflection of radio waves, e.g. primary radar systems; Analogous systems
- G01S13/06—Systems determining position data of a target
- G01S13/08—Systems for measuring distance only
- G01S13/32—Systems for measuring distance only using transmission of continuous waves, whether amplitude-, frequency-, or phase-modulated, or unmodulated
- G01S13/36—Systems for measuring distance only using transmission of continuous waves, whether amplitude-, frequency-, or phase-modulated, or unmodulated with phase comparison between the received signal and the contemporaneously transmitted signal
- G01S13/38—Systems for measuring distance only using transmission of continuous waves, whether amplitude-, frequency-, or phase-modulated, or unmodulated with phase comparison between the received signal and the contemporaneously transmitted signal wherein more than one modulation frequency is used
-
- 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
- G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
- G01S7/02—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S13/00
- G01S7/03—Details of HF subsystems specially adapted therefor, e.g. common to transmitter and receiver
-
- 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
- G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
- G01S7/02—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S13/00
- G01S7/35—Details of non-pulse systems
- G01S7/352—Receivers
-
- 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
- G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
- G01S7/02—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S13/00
- G01S7/40—Means for monitoring or calibrating
- G01S7/4004—Means for monitoring or calibrating of parts of a radar system
- G01S7/4008—Means for monitoring or calibrating of parts of a radar system of transmitters
-
- 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
- G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
- G01S7/02—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S13/00
- G01S7/40—Means for monitoring or calibrating
- G01S7/4004—Means for monitoring or calibrating of parts of a radar system
- G01S7/4021—Means for monitoring or calibrating of parts of a radar system of receivers
-
- 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
- G01S13/02—Systems using reflection of radio waves, e.g. primary radar systems; Analogous systems
- G01S13/06—Systems determining position data of a target
- G01S13/08—Systems for measuring distance only
- G01S13/32—Systems for measuring distance only using transmission of continuous waves, whether amplitude-, frequency-, or phase-modulated, or unmodulated
- G01S13/36—Systems for measuring distance only using transmission of continuous waves, whether amplitude-, frequency-, or phase-modulated, or unmodulated with phase comparison between the received signal and the contemporaneously transmitted signal
- G01S13/40—Systems for measuring distance only using transmission of continuous waves, whether amplitude-, frequency-, or phase-modulated, or unmodulated with phase comparison between the received signal and the contemporaneously transmitted signal wherein the frequency of transmitted signal is adjusted to give a predetermined phase relationship
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- Engineering & Computer Science (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Signal Processing (AREA)
- Radar Systems Or Details Thereof (AREA)
Description
図1は、実施の形態1にかかるレーダ装置の構成を示す第1の図である。実施の形態1にかかるレーダ装置100は、FM-CW方式による周波数変調を利用するFM-CWレーダである。レーダ装置100は、送信アンテナ1と、受信アンテナ2と、ベースバンドアンプ回路6と、周囲温度モニタ11と、制御回路12と、高周波回路13と、信号処理部14と、プリスケーラ15と、ミキサ17と、基準周波数発生器18と、を備える。
実施の形態1では、マイクロコンピュータ10は、電圧制御発振器4が同一フレーム内で複数の異なる帯域幅の変調を行う時は、複数の信号の初期電圧が一致するようにルックアップテーブルを作成および更新したが、実施の形態2では、マイクロコンピュータ10は、出荷検査などであらかじめ取得したヒット毎のビート信号の位相データを用いて相対速度を測定する。なお、基本的な構成は、図1または図2に示す実施の形態1の構成と同一または同等であり、具体的な構成に関する説明は省略する。
実施の形態2では、マイクロコンピュータ10は、出荷検査などであらかじめ取得したヒット毎のビート信号の位相データを補正データとして保持したが、実施の形態3では、マイクロコンピュータ10は、補正データを複数の周囲温度ごとに保持する。なお、基本的な構成は、図1または図2に示す実施の形態1の構成と同一または同等であり、具体的な構成に関する説明は省略する。
Claims (3)
- 周波数変調連続波方式による周波数変調を利用するレーダ装置であって、
三角波電圧信号に基づいて周波数変調された高周波信号を発生させる電圧制御発振器と、
前記高周波信号を空間に放射する送信アンテナと、
目標物からの前記高周波信号の反射波を受信信号として受信する受信アンテナと、
前記受信信号と前記高周波信号との周波数差を周波数に持つビート信号を生成するミキサと、
前記ミキサが生成した前記ビート信号をデジタル信号に変換するアナログデジタル変換器と、
デジタル信号の三角波電圧信号のデータをアナログ信号に変換し、前記電圧制御発振器に出力するデジタルアナログ変換器と、
前記ビート信号の前記デジタル信号を用いて前記目標物との距離と相対速度とを算出し、前記レーダ装置による走査の同一フレーム内で第1の変調方式で変調される第1の信号に対応する前記三角波電圧信号のデータと、前記第1の信号と異なる帯域幅の第2の変調方式で変調される第2の信号に対応する前記三角波電圧信号のデータとを、切り替えて出力する制御部と、を備え、
前記制御部は、前記同一フレーム内で前記第1の変調方式から前記第2の変調方式に切替えを行うときに、前記第1の信号と前記第2の信号との初期送信周波数の差をなくす変調を行うように、前記第1の変調方式に対応する前記三角波電圧信号のデータの初期電圧と前記第2の変調方式に対応する前記三角波電圧信号のデータの初期電圧を一致させた前記三角波電圧信号のデータが格納されたメモリを有する
ことを特徴とするレーダ装置。 - 前記制御部は、
ヒットごとの前記ビート信号の位相データを保持し、前記位相データを前記相対速度の補正に用いることを特徴とする請求項1に記載のレーダ装置。 - 周囲の温度を測定する周囲温度モニタを備え、
前記制御部は、
前記位相データを前記周囲の温度ごとに保持することを特徴とする請求項2に記載のレーダ装置。
Applications Claiming Priority (1)
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PCT/JP2019/012574 WO2020194462A1 (ja) | 2019-03-25 | 2019-03-25 | レーダ装置 |
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JPWO2020194462A1 JPWO2020194462A1 (ja) | 2021-10-14 |
JP7154386B2 true JP7154386B2 (ja) | 2022-10-17 |
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JP2021508433A Active JP7154386B2 (ja) | 2019-03-25 | 2019-03-25 | レーダ装置 |
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US (1) | US20220082677A1 (ja) |
JP (1) | JP7154386B2 (ja) |
DE (1) | DE112019007076T5 (ja) |
WO (1) | WO2020194462A1 (ja) |
Families Citing this family (1)
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CN117396124A (zh) * | 2021-05-24 | 2024-01-12 | 阿瑙特株式会社 | 信息处理装置、信息处理方法、以及计算机程序 |
Citations (8)
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US20040130482A1 (en) | 2003-01-02 | 2004-07-08 | Yu-Shan Lin | Digital controlled linear sweep frequency mode for FMCW radar altimeter |
US20060164173A1 (en) | 2002-08-06 | 2006-07-27 | Klein Robert H | Waveform lineariser |
JP2008232854A (ja) | 2007-03-20 | 2008-10-02 | Mitsubishi Electric Corp | ミリ波送受信モジュール |
JP2016099143A (ja) | 2014-11-19 | 2016-05-30 | 三菱電機株式会社 | Fmcwレーダ装置およびfmcwレーダ用信号処理方法 |
JP2016161499A (ja) | 2015-03-04 | 2016-09-05 | 三菱電機株式会社 | 周波数変調回路 |
WO2017199296A1 (ja) | 2016-05-16 | 2017-11-23 | 三菱電機株式会社 | Fm-cwレーダおよびfm-cw信号の生成方法 |
JP2018129670A (ja) | 2017-02-08 | 2018-08-16 | 株式会社デンソー | レーダ用pll回路 |
JP2018179798A (ja) | 2017-04-14 | 2018-11-15 | 三菱電機株式会社 | レーダ装置及びその校正方法 |
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DE2514868C3 (de) * | 1975-04-04 | 1979-05-17 | Standard Elektrik Lorenz Ag, 7000 Stuttgart | FM-Schwebungs-Rückstrahlortungsgerät zur gleichzeitigen Entfernungs- und Geschwindigkeitsmessung |
DE4242700C2 (de) * | 1992-12-17 | 2003-01-30 | Bosch Gmbh Robert | Verfahren zur Messung des Abstandes und der Geschwindigkeit von Objekten |
JP2013002927A (ja) * | 2011-06-15 | 2013-01-07 | Honda Elesys Co Ltd | 障害物検知装置及びコンピュータプログラム |
US8994586B1 (en) * | 2013-11-27 | 2015-03-31 | Agency For Defense Development | Apparatus and method for detecting target in near field |
WO2017175427A1 (ja) * | 2016-04-05 | 2017-10-12 | 三菱電機株式会社 | 周波数変調回路、fm-cwレーダおよび高速変調レーダ |
EP3444628A1 (en) * | 2017-08-18 | 2019-02-20 | Nxp B.V. | Radar unit, integrated circuit and methods for detecting and mitigating mutual interference |
US11448745B2 (en) * | 2018-06-22 | 2022-09-20 | Asahi Kasei Microdevices Corporation | Sensor device and system, and biometric sensing method and system |
US10567063B1 (en) * | 2019-03-20 | 2020-02-18 | Analog Devices International Unlimited Company | Phase shift module with an enhanced frequency multiplier and temperature compensation in local oscillator path |
-
2019
- 2019-03-25 JP JP2021508433A patent/JP7154386B2/ja active Active
- 2019-03-25 WO PCT/JP2019/012574 patent/WO2020194462A1/ja active Application Filing
- 2019-03-25 DE DE112019007076.2T patent/DE112019007076T5/de active Pending
- 2019-03-25 US US17/423,900 patent/US20220082677A1/en active Pending
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
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US20060164173A1 (en) | 2002-08-06 | 2006-07-27 | Klein Robert H | Waveform lineariser |
US20040130482A1 (en) | 2003-01-02 | 2004-07-08 | Yu-Shan Lin | Digital controlled linear sweep frequency mode for FMCW radar altimeter |
JP2008232854A (ja) | 2007-03-20 | 2008-10-02 | Mitsubishi Electric Corp | ミリ波送受信モジュール |
JP2016099143A (ja) | 2014-11-19 | 2016-05-30 | 三菱電機株式会社 | Fmcwレーダ装置およびfmcwレーダ用信号処理方法 |
JP2016161499A (ja) | 2015-03-04 | 2016-09-05 | 三菱電機株式会社 | 周波数変調回路 |
WO2017199296A1 (ja) | 2016-05-16 | 2017-11-23 | 三菱電機株式会社 | Fm-cwレーダおよびfm-cw信号の生成方法 |
JP2018129670A (ja) | 2017-02-08 | 2018-08-16 | 株式会社デンソー | レーダ用pll回路 |
JP2018179798A (ja) | 2017-04-14 | 2018-11-15 | 三菱電機株式会社 | レーダ装置及びその校正方法 |
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JPWO2020194462A1 (ja) | 2021-10-14 |
DE112019007076T5 (de) | 2021-12-16 |
US20220082677A1 (en) | 2022-03-17 |
WO2020194462A1 (ja) | 2020-10-01 |
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