JP7327840B2 - 相互相関テンソルに基づく三次元の互いに素のキュービックアレイの到来方向推定方法 - Google Patents
相互相関テンソルに基づく三次元の互いに素のキュービックアレイの到来方向推定方法 Download PDFInfo
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- JP7327840B2 JP7327840B2 JP2021576863A JP2021576863A JP7327840B2 JP 7327840 B2 JP7327840 B2 JP 7327840B2 JP 2021576863 A JP2021576863 A JP 2021576863A JP 2021576863 A JP2021576863 A JP 2021576863A JP 7327840 B2 JP7327840 B2 JP 7327840B2
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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
- G01S3/00—Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic, or electromagnetic waves, or particle emission, not having a directional significance, are being received
- G01S3/02—Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic, or electromagnetic waves, or particle emission, not having a directional significance, are being received using radio waves
- G01S3/14—Systems for determining direction or deviation from predetermined direction
- G01S3/143—Systems for determining direction or deviation from predetermined direction by vectorial combination of signals derived from differently oriented antennae
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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
- G01S3/00—Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic, or electromagnetic waves, or particle emission, not having a directional significance, are being received
- G01S3/02—Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic, or electromagnetic waves, or particle emission, not having a directional significance, are being received using radio waves
- G01S3/74—Multi-channel systems specially adapted for direction-finding, i.e. having a single antenna system capable of giving simultaneous indications of the directions of different 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
- G01S3/00—Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic, or electromagnetic waves, or particle emission, not having a directional significance, are being received
- G01S3/02—Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic, or electromagnetic waves, or particle emission, not having a directional significance, are being received using radio waves
- G01S3/14—Systems for determining direction or deviation from predetermined direction
- G01S3/16—Systems for determining direction or deviation from predetermined direction using amplitude comparison of signals derived sequentially from receiving antennas or antenna systems having differently-oriented directivity characteristics or from an antenna system having periodically-varied orientation of directivity characteristic
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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
- G01S3/00—Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic, or electromagnetic waves, or particle emission, not having a directional significance, are being received
- G01S3/02—Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic, or electromagnetic waves, or particle emission, not having a directional significance, are being received using radio waves
- G01S3/04—Details
- G01S3/043—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
- G01S3/00—Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic, or electromagnetic waves, or particle emission, not having a directional significance, are being received
- G01S3/02—Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic, or electromagnetic waves, or particle emission, not having a directional significance, are being received using radio waves
- 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
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- Variable-Direction Aerials And Aerial Arrays (AREA)
Description
そのため、
Wの中には
はそれぞれ
に対して次元統合のテンソル変換を行うことで、1つの仮想領域の二次等価信号テンソル
(付記1)
相互相関テンソルに基づく三次元の互いに素のキュービックアレイの到来方向推定方法であって、
受信側が
K個の{(θ1,φ1),(θ1,φ2),...,(θk,φk)}方向からの遠距離場狭帯域非コヒーレント信号源があると仮定すると、三次元の互いに素のキュービックアレイの疎で均一なキュービックサブアレイQiを構成する受信信号は四次元テンソル
2つの三次元の疎で均一なキュービックサブアレイQ1とQ2の四次元受信信号テンソル
相互相関テンソル
そのため、
Wの中には
三次元仮想均一キュービックアレイ
三次元の仮想領域信号テンソル
三次元の仮想均一キュービックアレイ
四次元仮想領域信号テンソル
二次元到来方向
ステップ(1)に記載の三次元の互いに素のキュービックアレイ構造は具体的に、直角座標系上に一対の三次元の疎で均一なキュービックサブアレイQ1とQ2を構築し、ここではQ1は
ステップ(3)に記載の三次元の互いに素のキュービックアレイの二次相互相関テンソル統計量は、実際に、受信信号テンソル
ステップ(4)に記載の三次元仮想均一キュービックアレイ
ステップ(6)において、四次元仮想領域信号テンソル
ステップ(7)において、三次元空間スペクトル検索が到来方向推定結果を得る具体的な過程は以下のとおりである:固定
Claims (6)
- コンピュータが実行する、相互相関テンソルに基づく三次元の互いに素のキュービックアレイの到来方向推定方法であって、
受信側が
K個の{(θ1,φ1),(θ1,φ2),...,(θk,φk)}方向からの遠距離場狭帯域非コヒーレント信号源があると仮定すると、三次元の互いに素のキュービックアレイの疎で均一なキュービックサブアレイQiを構成する受信信号は四次元テンソル
2つの三次元の疎で均一なキュービックサブアレイQ1とQ2の四次元受信信号テンソル
相互相関テンソル
そのため、
Wの中には
三次元仮想均一キュービックアレイ
前記コンピュータは、三次元の仮想領域信号テンソル
三次元の仮想均一キュービックアレイ
前記コンピュータが四次元仮想領域信号テンソル
前記コンピュータが二次元到来方向
- ステップ(1)に記載の三次元の互いに素のキュービックアレイ構造は具体的に、直角座標系上に一対の三次元の疎で均一なキュービックサブアレイQ1とQ2を構築し、ここではQ1は
- ステップ(6)において、前記コンピュータが四次元仮想領域信号テンソル
- ステップ(7)において、前記コンピュータによる三次元空間スペクトル検索が到来方向推定結果を得る具体的な過程は以下のとおりである:固定
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CN202110065604.4A CN112904272B (zh) | 2021-01-18 | 2021-01-18 | 基于互相关张量的三维互质立方阵列波达方向估计方法 |
CN202110065604.4 | 2021-01-18 | ||
PCT/CN2021/072779 WO2022151511A1 (zh) | 2021-01-18 | 2021-01-20 | 基于互相关张量的三维互质立方阵列波达方向估计方法 |
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US11841448B2 (en) * | 2020-12-16 | 2023-12-12 | Zhejiang University | Composite tensor beamforming method for electromagnetic vector coprime planar array |
CN113552532B (zh) * | 2021-07-09 | 2022-03-22 | 浙江大学 | 基于耦合张量分解的l型互质阵列波达方向估计方法 |
CN114200388A (zh) * | 2021-10-28 | 2022-03-18 | 浙江大学 | 基于四阶采样协方差张量去噪的子阵分置式l型互质阵列波达方向估计方法 |
CN114444298A (zh) * | 2022-01-21 | 2022-05-06 | 浙江大学 | 基于虚拟域张量填充的互质面阵二维波达方向估计方法 |
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CN112904272B (zh) | 2022-02-18 |
US20230055481A1 (en) | 2023-02-23 |
WO2022151511A1 (zh) | 2022-07-21 |
CN112904272A (zh) | 2021-06-04 |
US11879986B2 (en) | 2024-01-23 |
JP2023513650A (ja) | 2023-04-03 |
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