JP2019215325A - 別々のレーダー受信器を用いたターゲットの角度分解 - Google Patents
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- G01S3/14—Systems for determining direction or deviation from predetermined direction
- G01S3/46—Systems for determining direction or deviation from predetermined direction using antennas spaced apart and measuring phase or time difference between signals therefrom, i.e. path-difference systems
- G01S3/50—Systems for determining direction or deviation from predetermined direction using antennas spaced apart and measuring phase or time difference between signals therefrom, i.e. path-difference systems the waves arriving at the antennas being pulse modulated and the time difference of their arrival being measured
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- 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
- G01S13/87—Combinations of radar systems, e.g. primary radar and secondary radar
- G01S13/878—Combination of several spaced transmitters or receivers of known location for determining the position of a transponder or a reflector
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- 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
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- 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
- G01S13/66—Radar-tracking systems; Analogous systems
- G01S13/72—Radar-tracking systems; Analogous systems for two-dimensional tracking, e.g. combination of angle and range tracking, track-while-scan radar
- G01S13/723—Radar-tracking systems; Analogous systems for two-dimensional tracking, e.g. combination of angle and range tracking, track-while-scan radar by using numerical data
- G01S13/726—Multiple target tracking
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- 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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- 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
- G01S13/003—Bistatic radar systems; Multistatic radar systems
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- G—PHYSICS
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- 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
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- G—PHYSICS
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- 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
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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
- G01S5/00—Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations
- G01S5/02—Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations using radio waves
- G01S5/06—Position of source determined by co-ordinating a plurality of position lines defined by path-difference 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
- G01S7/28—Details of pulse systems
- G01S7/282—Transmitters
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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
- G01S7/28—Details of pulse systems
- G01S7/285—Receivers
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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
- G01S7/28—Details of pulse systems
- G01S7/285—Receivers
- G01S7/292—Extracting wanted echo-signals
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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
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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
- G01S7/41—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S13/00 using analysis of echo signal for target characterisation; Target signature; Target cross-section
- G01S7/417—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S13/00 using analysis of echo signal for target characterisation; Target signature; Target cross-section involving the use of neural networks
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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
- G01S13/46—Indirect determination of position data
- G01S2013/466—Indirect determination of position data by Trilateration, i.e. two antennas or two sensors determine separately the distance to a target, whereby with the knowledge of the baseline length, i.e. the distance between the antennas or sensors, the position data of the target is determined
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Abstract
Description
複数の受信器であって、各受信器がRF信号またはレーダー信号を反射する複数のターゲットによって生成される複数の反射信号を受信し、反射信号がバックグラウンドノイズを含み、各受信器が所定の距離で分離されている、複数の受信器と、
複数の受信器からの入力信号をノイズ除去し、複数の受信器間の反射信号の到着時差を特定するように構成された多入力ノイズ除去器と、
複数の受信器間の反射信号の到着時差を用いて、複数のターゲット間の角度分解を特定するように構成された検出/角度分解モジュールと、
を備えるレーダーシステム。
第1の受信アンテナによって受信された反射信号をデジタル化またはサンプリングして第1のデジタル化またはサンプリングされたノイズ入り入力信号を提供する第1のアナログデジタルコンバータ(ADC)と、
RF信号またはレーダー信号を反射する複数のターゲットによって生成された複数の反射信号を受信する第2の受信アンテナであって、第1の受信アンテナから選択された距離で離間配置されている、第2の受信アンテナと、
第2の受信アンテナによって受信された反射信号をデジタル化またはサンプリングして第2のデジタル化またはサンプリングされたノイズ入り入力信号を提供する第2のアナログデジタルコンバータ(ADC)と、
各ADCからのノイズ入り入力信号をノイズ除去して、第1の受信アンテナと第2の受信アンテナの間の反射信号の到着時差を特定するように構成された多入力ノイズ除去器と、
受信アンテナ間の反射信号の到着時差を用いて、複数のターゲット間の角度分解を特定するように構成された検出/角度分解モジュールと、
を備えるレーダーシステム。
高周波(RF)信号またはレーダー信号を送信することと、
RF信号またはレーダー信号を反射する複数のターゲットによって生成される複数の反射信号を受信することであって、反射信号がバックグラウンドノイズを含み、反射信号が、所定の距離で離間配置されている第1の受信アンテナと第2の受信アンテナによって受信される、複数の反射信号を受信することと、
多入力ノイズ除去器によって、第1の受信アンテナからの第1の入力信号をノイズ除去することと、
多入力ノイズ除去器によって、第2の受信アンテナからの第2の入力信号をノイズ除去することと、
多入力ノイズ除去器によってノイズ除去された第1の入力信号と第2の入力信号から、第1の受信アンテナと第2の受信アンテナとの間の反射信号の到着時差を特定することと、
第1の受信アンテナと第2の受信アンテナとの間の反射信号の到着時差を用いて、複数のターゲット間の角度分解を特定することと、
を含む、複数のターゲット間の角度分解を特定する方法。
Claims (10)
- 高周波(RF)信号(104)またはレーダー信号(104)を送信するための送信器(102)と、
複数の受信器(114)であって、各受信器(114)が前記RF信号(104)またはレーダー信号を反射する複数のターゲット(118a)によって生成される複数の反射信号(116a)を受信し、前記反射信号(116a)がバックグラウンドノイズを含み、前記受信器(114)のそれぞれが所定の距離で分離されている、複数の受信器(114)と、
前記複数の受信器(114)からの入力信号(136)をノイズ除去し、前記複数の受信器(114)間の前記反射信号(116a)の到着時差を特定するように構成された多入力ノイズ除去器(130)と、
前記複数の受信器(114)間の前記反射信号(116a)の前記到着時差を用いて、前記複数のターゲット(118a)間の角度分解を特定するように構成された検出/角度分解モジュール(140)と、
を備えるレーダーシステム(100)。 - 前記多入力ノイズ除去器(130)が、前記反射信号(116a)の検出を強化し、且つ前記複数の受信器(114)間の前記反射信号(116a)の前記到着時差を特定するために互いに相互作用する、複数のニューラルネットワークリザーバ(132)を含む、請求項1に記載のレーダーシステム(100)。
- 前記複数のニューラルネットワークリザーバ(132)のうちの第2のニューラルネットワークリザーバ(132b)のニューラルネットワークリザーバの重み(134b)が、前記反射信号(116a)の検出を強化し、且つ前記複数の受信器(114)間の前記反射信号(116a)の前記到着時差を特定するために、前記複数のニューラルネットワークリザーバ(132)のうちの第1のニューラルネットワークリザーバ(134a)によって調整される、請求項1または2に記載のレーダーシステム(100)。
- 前記多入力ノイズ除去器(130)が、前記複数の受信器(114)のうちの各受信器(114a)と関連付けられている別々の入力ノイズ除去器(130a)を備え、前記別々のノイズ除去器(130a)がそれぞれ、前記反射信号(116a)の検出を強化し、且つ前記複数の受信器(114)間の前記反射信号(116a)の前記到着時差を特定するために互いに相互作用する、ニューラルネットワークリザーバ(132)を備える、請求項1から3のいずれか一項に記載のレーダーシステム(100)。
- 前記送信器(102)によって送信される前記RF信号(104)または前記レーダー信号が連続波信号(112)を含む、請求項1から4のいずれか一項に記載のレーダーシステム(100)。
- 前記送信器(102)が送信アンテナ(108)を含み、前記複数の受信器(114)がそれぞれ受信アンテナ(120)を含み、隣接する受信アンテナ(120a、120b)間のベースラインが、前記送信アンテナ(108)の開口またはサイズよりも実質的に大きく、前記ベースラインが、前記隣接する受信アンテナ(120a、120b)間の前記所定の距離に相当する、請求項1から5のいずれか一項に記載のレーダーシステム(100)。
- 各受信アンテナ(120a、120b)が、それぞれ前記送信アンテナ(108)と比べてより広幅の信号ビーム(144)及びより低いゲイン(146)を提供するように構成されている、請求項1から6のいずれか一項に記載のレーダーシステム(100)。
- 前記複数の受信器(114)が、互いに対して、及び前記送信器(102)に対して、周波数、位相、及び時間を合わせられている、請求項1から7のいずれか一項に記載のレーダーシステム(100)。
- 前記送信器(102)と受信器(114)が、前記送信器(102)と前記受信器(114)との間の双方向時間転送、または時間反転技術のうちの1つを用いて、周波数、位相、及び時間を合わせられている、請求項1から8のいずれか一項に記載のレーダーシステム(100)。
- 複数のターゲット(118a)間の角度分解を特定する方法であって、
高周波(RF)信号(104)またはレーダー信号を送信することと、
前記RF信号(104)またはレーダー信号を反射する複数のターゲット(118a)によって生成される複数の反射信号(116a)を受信することであって、前記反射信号(116a)がバックグラウンドノイズを含み、前記反射信号(116a)が、所定の距離で離間配置されている第1の受信アンテナ(120a)と第2の受信アンテナ(120b)によって受信される、受信することと、
多入力ノイズ除去器(130)によって、前記第1の受信アンテナ(120a)からの第1の入力信号をノイズ除去することと、
前記多入力ノイズ除去器(130)によって、第2の受信アンテナ(120b)からの第2の入力信号をノイズ除去することと、
前記多入力ノイズ除去器(130)によってノイズ除去された前記第1の入力信号と前記第2の入力信号から、前記第1の受信アンテナ(120a)と前記第2の受信アンテナ(120b)との間の前記反射信号(116a)の到着時差を特定することと、
前記第1の受信アンテナ(120a)と前記第2の受信アンテナ(120b)との間の前記反射信号(116a)の前記到着時差を用いて、前記複数のターゲット(118a)間の角度分解を特定することと、
を含む、複数のターゲット(118)間の角度分解を特定する方法。
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JP7186816B2 (ja) | 2021-03-12 | 2022-12-09 | 株式会社東芝 | レーダ装置、信号処理装置、および信号処理方法 |
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EP3561539B1 (en) | 2022-10-19 |
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EP3561539A1 (en) | 2019-10-30 |
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US11002819B2 (en) | 2021-05-11 |
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