JP7021825B2 - 参照信号補間を用いる狭帯域測距システムのための方法及び装置 - Google Patents
参照信号補間を用いる狭帯域測距システムのための方法及び装置 Download PDFInfo
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- JP7021825B2 JP7021825B2 JP2019522619A JP2019522619A JP7021825B2 JP 7021825 B2 JP7021825 B2 JP 7021825B2 JP 2019522619 A JP2019522619 A JP 2019522619A JP 2019522619 A JP2019522619 A JP 2019522619A JP 7021825 B2 JP7021825 B2 JP 7021825B2
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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
-
- 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
-
- 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
- G01S15/00—Systems using the reflection or reradiation of acoustic waves, e.g. sonar systems
- G01S15/02—Systems using the reflection or reradiation of acoustic waves, e.g. sonar systems using reflection of acoustic waves
- G01S15/06—Systems determining the position data of a target
- G01S15/08—Systems for measuring distance only
-
- 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
- G01S17/08—Systems determining position data of a target for measuring distance only
-
- 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
- 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
- G01S7/4052—Means for monitoring or calibrating by simulation of echoes
-
- 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
- G01S7/4052—Means for monitoring or calibrating by simulation of echoes
- G01S7/406—Means for monitoring or calibrating by simulation of echoes using internally generated reference signals, e.g. via delay line, via RF or IF signal injection or via integrated reference reflector or transponder
- G01S7/4069—Means for monitoring or calibrating by simulation of echoes using internally generated reference signals, e.g. via delay line, via RF or IF signal injection or via integrated reference reflector or transponder involving a RF signal injection
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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
- G01S7/48—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S17/00
- G01S7/483—Details of pulse systems
- G01S7/486—Receivers
- G01S7/4865—Time delay measurement, e.g. time-of-flight measurement, time of arrival measurement or determining the exact position of a peak
-
- 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
- G01S7/48—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S17/00
- G01S7/491—Details of non-pulse systems
- G01S7/4912—Receivers
- G01S7/4915—Time delay measurement, e.g. operational details for pixel components; Phase measurement
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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
- G01S7/48—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S17/00
- G01S7/497—Means for monitoring or calibrating
-
- 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
- G01S7/52—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S15/00
- G01S7/52004—Means for monitoring or calibrating
-
- 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
- G01S7/52—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S15/00
- G01S7/523—Details of pulse systems
- G01S7/526—Receivers
Description
ここで、S1 *はS1の複素共役である。
Claims (18)
- 方法であって、
或る周波数を有する参照信号の第1及び第2のサンプルを受信することであって、前記第1及び第2のサンプルが物体からの反射を含まない前記参照信号のものである、前記参照信号の第1及び第2のサンプルを受信することと、
異なる位相オフセットにおいて前記周波数を有する再構築された参照信号を生成することであって、前記第1及び第2のサンプルの間に補間することによることを含む、前記再構築された参照信号を生成することと、
前記物体に反射した信号を受信することであって、前記物体に反射した信号が前記物体からの前記参照信号の反射を含む、前記物体に反射した信号を受信することと、
前記再構築された参照信号を前記物体に反射した信号と相関させることによって相関を生成することと、
前記相関に基づいて位相を選択することと、
前記選択された位相に基づいて前記物体の距離を判定することと、
を含む、方法。 - 請求項1に記載の方法であって、
前記参照信号がトランスデューサから送信される、方法。 - 請求項1に記載の方法であって、
前記選択された位相が前記物体の距離に対応する、方法。 - 請求項1に記載の方法であって、
前記異なる位相オフセットが前記第1のサンプルと前記第2のサンプルとの間にある、方法。 - 請求項1に記載の方法であって、
前記相関がそれぞれのピーク値とそれぞれのサイドローブ値とを含む、方法。 - 請求項5に記載の方法であって、
前記相関が前記異なる位相オフセットに対応する、方法。 - 請求項6に記載の方法であって、
前記位相を選択することが、前記相関の最高ピーク値又は前記相関の最高ピーク対サイドローブ比の少なくとも1つに基づいて前記位相を選択することを含む、方法。 - 請求項7に記載の方法であって、
前記選択された位相に基づいて遅延を判定することであって、前記遅延が前記距離に対応する、前記遅延を判定することを更に含む、方法。 - 請求項8に記載の方法であって、
前記最高ピーク値の微細推定を判定するために前記最高ピーク値辺りの曲線フィット演算を行うことであって、前記最高ピーク値が前記遅延に対応する、前記曲線フィット演算を行うことを更に含む、方法。 - 装置であって、
出力を有する補間器であって、
或る周波数を有する参照信号の第1及び第2のサンプルであって、物体からの反射を含まない前記参照信号のものである、前記第1及び第2のサンプルを入力し、
前記第1及び第2のサンプルの間に補間することによることを含み、異なる位相オフセットにおいて前記周波数を有する再構築された参照信号を生成し、
前記補間器の出力に前記再構築された参照信号を提供する、
ように構成される、前記補間器と、
出力と、前記補間器の出力に結合される入力とを有する相関器であって、
前記物体からの前記参照信号の反射を含む前記物体に反射した信号を入力し、
前記再構築された参照信号を前記物体に反射した信号と相関させることによって相関を生成し、
前記相関器の出力に前記相関を提供する、
ように構成される、前記相関器と、
出力と、前記相関器の出力に結合される入力とを有する位相選択器であって、
前記相関に基づいて位相を選択し、
前記選択された位相に基づいて前記物体の距離を判定し、
前記位相選択器の出力に前記距離を提供する、
ように構成される、前記位相選択器と、
を含む、装置。 - 請求項10に記載の装置であって、
前記参照信号を送信するトランスデューサを更に含む、装置。 - 請求項10に記載の装置であって、
前記選択された位相が前記物体の距離に対応する、装置。 - 請求項10に記載の装置であって、
前記異なる位相オフセットが前記第1のサンプルと前記第2のサンプルとの間にある、装置。 - 請求項10に記載の装置であって、
前記相関がそれぞれのピーク値とそれぞれのサイドローブ値とを含む、装置。 - 請求項14に記載の装置であって、
前記相関が前記異なる位相オフセットに対応する、装置。 - 請求項15に記載の装置であって、
前記位相選択器が、前記相関の最高ピーク値又は前記相関の最高ピーク対サイドローブ比の少なくとも1つに基づいて前記位相を選択するように更に構成される、装置。 - 請求項16に記載の装置であって、
前記位相選択器が、前記選択された位相に基づいて遅延を判定するように更に構成され、前記遅延が前記距離に対応する、装置。 - 請求項17に記載の装置であって、
前記位相選択器が、前記最高ピーク値の微細推定を判定するために前記最高ピーク値辺りの曲線フィット演算を行うように更に構成され、前記最高ピーク値が前記遅延に対応する、装置。
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US15/208,945 | 2016-07-13 | ||
US15/208,945 US10353062B2 (en) | 2016-07-13 | 2016-07-13 | Methods and apparatus for narrowband ranging systems using reference signal interpolation |
PCT/US2017/041971 WO2018013834A1 (en) | 2016-07-13 | 2017-07-13 | Methods and apparatus for narrowband ranging systems using reference signal interpolation |
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JP2019522221A JP2019522221A (ja) | 2019-08-08 |
JP2019522221A5 JP2019522221A5 (ja) | 2020-08-20 |
JP7021825B2 true JP7021825B2 (ja) | 2022-02-17 |
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US (1) | US10353062B2 (ja) |
EP (1) | EP3485291A4 (ja) |
JP (1) | JP7021825B2 (ja) |
CN (1) | CN109564281B (ja) |
WO (1) | WO2018013834A1 (ja) |
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CN110954877B (zh) * | 2019-11-05 | 2022-04-26 | 中国电波传播研究所(中国电子科技集团公司第二十二研究所) | 一种车载雷达散射特性测量区域地形生成方法 |
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- 2017-07-13 EP EP17828478.2A patent/EP3485291A4/en active Pending
- 2017-07-13 WO PCT/US2017/041971 patent/WO2018013834A1/en unknown
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EP3485291A4 (en) | 2019-08-14 |
US20180017671A1 (en) | 2018-01-18 |
CN109564281B (zh) | 2023-08-22 |
WO2018013834A1 (en) | 2018-01-18 |
EP3485291A1 (en) | 2019-05-22 |
CN109564281A (zh) | 2019-04-02 |
JP2019522221A (ja) | 2019-08-08 |
US10353062B2 (en) | 2019-07-16 |
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