JP7324859B2 - 処理装置 - Google Patents
処理装置 Download PDFInfo
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- JP7324859B2 JP7324859B2 JP2021554844A JP2021554844A JP7324859B2 JP 7324859 B2 JP7324859 B2 JP 7324859B2 JP 2021554844 A JP2021554844 A JP 2021554844A JP 2021554844 A JP2021554844 A JP 2021554844A JP 7324859 B2 JP7324859 B2 JP 7324859B2
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- frequency
- continuous wave
- processing device
- frequency analysis
- radar device
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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
- G01S13/02—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
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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
- G01S13/02—Systems using reflection of radio waves, e.g. primary radar systems; Analogous systems
- G01S13/50—Systems of measurement based on relative movement of target
- G01S13/58—Velocity or trajectory determination systems; Sense-of-movement determination systems
- G01S13/583—Velocity or trajectory determination systems; Sense-of-movement determination systems using transmission of continuous unmodulated waves, amplitude-, frequency-, or phase-modulated waves and based upon the Doppler effect resulting from movement of targets
- G01S13/584—Velocity or trajectory determination systems; Sense-of-movement determination systems using transmission of continuous unmodulated waves, amplitude-, frequency-, or phase-modulated waves and based upon the Doppler effect resulting from movement of targets adapted for simultaneous range and velocity measurements
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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
- G01S7/35—Details of non-pulse systems
- G01S7/352—Receivers
- G01S7/356—Receivers involving particularities of FFT processing
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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
- G01S13/02—Systems using reflection of radio waves, e.g. primary radar systems; Analogous systems
- G01S13/06—Systems determining position data of a target
- G01S13/42—Simultaneous measurement of distance and other co-ordinates
- G01S13/44—Monopulse radar, i.e. simultaneous lobing
- G01S13/4454—Monopulse radar, i.e. simultaneous lobing phase comparisons monopulse, i.e. comparing the echo signals received by an interferometric antenna arrangement
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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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- Engineering & Computer Science (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Radar Systems Or Details Thereof (AREA)
Description
図5に示すように、第1周波数解析P2の結果に基づいて抽出されたパワースペクトルのピーク数、すなわち物体の検知数が増加すると、第2周波数解析P6におけるDFTの解析ピーク数が増加する。
11 処理装置
12a1 第1送信アンテナ
12a2 第2送信アンテナ
CW1 第1連続波(周波数変調連続波)
CW2 第2連続波(周波数変調連続波)
M ピーク数
Nc 第1連続波の数
Ns サンプリング数
OA 解析対象
P2 第1周波数解析
P6 第2周波数解析
T1 第1変調期間(第1連続波の送信周期)
Δf1 第1連続波の周波数偏移幅
Δf2 第2連続波の周波数偏移幅
Claims (5)
- 周波数変調連続波である第1連続波と第2連続波を送受信するレーダ装置の信号処理を行うための処理装置であって、
前記第1連続波のビート周波数に対して高速フーリエ変換を含む第1周波数解析を行ってパワースペクトルのピークを抽出し、
前記第1周波数解析を行って抽出したピーク数が、前記第1連続波の送信周期に含まれる前記第1連続波の数と、各々の前記第1連続波に対するサンプリング数との積よりも小である場合に、前記ピークに対応する周波数を解析対象として前記第2連続波のビート周波数に対して離散フーリエ変換を含む第2周波数解析を行って物体の距離と速度と方位を算出し、
前記ピーク数が、前記積以上である場合に、前記第2周波数解析に替えて、前記第2連続波の前記ビート周波数に対して高速フーリエ変換を含む第3周波数解析を行って物体の距離と速度と方位を算出することを特徴とする処理装置。 - 前記レーダ装置を制御して前記第1連続波の周波数偏移幅を前記第2連続波の周波数偏移幅よりも拡大させることを特徴とする請求項1に記載の処理装置。
- 前記レーダ装置を制御して複数の前記第1連続波と複数の前記第2連続波とを交互に送受信させることを特徴とする請求項2に記載の処理装置。
- 前記レーダ装置を制御して一の前記第1連続波と一の前記第2連続波を交互に送受信させることを特徴とする請求項2に記載の処理装置。
- 前記レーダ装置を制御して前記レーダ装置の異なる位置に配置された第1送信アンテナと第2送信アンテナとを切り替えることを特徴とする請求項1に記載の処理装置。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
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JP2019202831 | 2019-11-08 | ||
JP2019202831 | 2019-11-08 | ||
PCT/JP2020/036783 WO2021090611A1 (ja) | 2019-11-08 | 2020-09-29 | 処理装置 |
Publications (2)
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JPWO2021090611A1 JPWO2021090611A1 (ja) | 2021-05-14 |
JP7324859B2 true JP7324859B2 (ja) | 2023-08-10 |
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JP2021554844A Active JP7324859B2 (ja) | 2019-11-08 | 2020-09-29 | 処理装置 |
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JP (1) | JP7324859B2 (ja) |
DE (1) | DE112020004529T5 (ja) |
WO (1) | WO2021090611A1 (ja) |
Families Citing this family (1)
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TWI802994B (zh) * | 2021-09-17 | 2023-05-21 | 為昇科科技股份有限公司 | 雷達測速系統、方法及雷達裝置 |
Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2011075500A (ja) | 2009-10-01 | 2011-04-14 | Mitsubishi Electric Corp | レーダ装置 |
JP2016003873A (ja) | 2014-06-13 | 2016-01-12 | 株式会社デンソー | レーダ装置 |
JP2017090066A (ja) | 2015-11-02 | 2017-05-25 | 富士通テン株式会社 | レーダ装置、レーダ装置の信号処理装置及び信号処理方法 |
JP2018059813A (ja) | 2016-10-05 | 2018-04-12 | 株式会社デンソーテン | レーダ装置および物標検出方法 |
US20180203105A1 (en) | 2017-01-18 | 2018-07-19 | Robert Bosch Gmbh | Chirp sequence radar undersampled multiple times |
WO2018154710A1 (ja) | 2017-02-24 | 2018-08-30 | 三菱電機株式会社 | レーダ信号処理装置及びレーダシステム |
JP2019015625A (ja) | 2017-07-07 | 2019-01-31 | 株式会社Soken | レーダ措置 |
JP2019184370A (ja) | 2018-04-06 | 2019-10-24 | 株式会社Soken | レーダシステム |
-
2020
- 2020-09-29 DE DE112020004529.3T patent/DE112020004529T5/de active Pending
- 2020-09-29 WO PCT/JP2020/036783 patent/WO2021090611A1/ja active Application Filing
- 2020-09-29 JP JP2021554844A patent/JP7324859B2/ja active Active
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2011075500A (ja) | 2009-10-01 | 2011-04-14 | Mitsubishi Electric Corp | レーダ装置 |
JP2016003873A (ja) | 2014-06-13 | 2016-01-12 | 株式会社デンソー | レーダ装置 |
JP2017090066A (ja) | 2015-11-02 | 2017-05-25 | 富士通テン株式会社 | レーダ装置、レーダ装置の信号処理装置及び信号処理方法 |
JP2018059813A (ja) | 2016-10-05 | 2018-04-12 | 株式会社デンソーテン | レーダ装置および物標検出方法 |
US20180203105A1 (en) | 2017-01-18 | 2018-07-19 | Robert Bosch Gmbh | Chirp sequence radar undersampled multiple times |
WO2018154710A1 (ja) | 2017-02-24 | 2018-08-30 | 三菱電機株式会社 | レーダ信号処理装置及びレーダシステム |
JP2019015625A (ja) | 2017-07-07 | 2019-01-31 | 株式会社Soken | レーダ措置 |
JP2019184370A (ja) | 2018-04-06 | 2019-10-24 | 株式会社Soken | レーダシステム |
Also Published As
Publication number | Publication date |
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DE112020004529T5 (de) | 2022-06-15 |
JPWO2021090611A1 (ja) | 2021-05-14 |
WO2021090611A1 (ja) | 2021-05-14 |
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