JP2022508505A - 構造化仮想ドメインのテンソル信号の処理に基づく互いに素なエリアアレイの二次元到来方向の推定方法 - Google Patents
構造化仮想ドメインのテンソル信号の処理に基づく互いに素なエリアアレイの二次元到来方向の推定方法 Download PDFInfo
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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
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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
- G01S3/80—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 ultrasonic, sonic or infrasonic waves
- G01S3/8006—Multi-channel systems specially adapted for direction-finding, i.e. having a single aerial system capable of giving simultaneous indications of the directions of different signals
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- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
- Variable-Direction Aerials And Aerial Arrays (AREA)
Abstract
Description
(1)本発明は、テンソルにより互いに素なエリアアレイの実際の受信信号を表示する。これは、二次元空間情報をベクトルで示すと共に、スナップショット情報を平均して相互相関統計量を取得して信号を処理するという従来の行列法と異なる。本発明では、スナップショット情報を第三次元で重ね合わせると共に、テンソル信号の相互相関統計に基づいて四次元空間情報の相互相関テンソルを含み、当初多次元の信号を記憶する空間構造情報を分析して取得する。
(2)本発明は、四次元相互相関テンソルに基づいて、仮想ドメインの統計量を導出すると共に、相互相関テンソルにおける同じ方向仮想ドメイン情報を示す次元を結合することにより、仮想ドメインの等価受信信号を導出して取得し、従来の行列法により導出された仮想ドメインの等価信号に存在している空間構造情報が損失されてしまい、又は、線型性の大きさが大き過ぎるなどの問題を克服することができる。
(3)本発明は、仮想ドメインの等価受信信号を構築する上で、仮想ドメインに、三次元テンソル信号をさらに構築することにより、二次元仮想ドメインとテンソル空間との接続を確立して、テンソル分解により、二次元到来方向推定の閉じた形の解を取得することに理論的前提を提供すると共に、構造化仮想ドメインテンソルの構造及び自由度の向上に、基礎を築くことができる。
(4)本発明は、仮想ドメインテンソル信号の次元拡張及び構造化仮想ドメインテンソル構造により、テンソル信号処理方法の自由度の性能を効果的に改善し、劣決定条件下での二次元到来方向推定を実現される。
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PCT/CN2020/088569 WO2021068496A1 (zh) | 2020-05-03 | 2020-05-03 | 基于结构化虚拟域张量信号处理的互质面阵二维波达方向估计方法 |
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JP2022508505A true JP2022508505A (ja) | 2022-01-19 |
JP7044290B2 JP7044290B2 (ja) | 2022-03-30 |
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CN113296049B (zh) * | 2021-04-28 | 2024-02-20 | 南京航空航天大学 | 互质阵列脉冲环境下非圆信号的共轭增广doa估计方法 |
CN113359086B (zh) * | 2021-06-25 | 2023-05-12 | 南京航空航天大学 | 基于增广互质阵列的加权子空间数据融合直接定位方法 |
CN113484821B (zh) * | 2021-07-06 | 2024-04-12 | 北京邮电大学 | 一种新型虚拟阵列结构及其doa估计方法 |
CN113673317B (zh) * | 2021-07-12 | 2023-04-07 | 电子科技大学 | 基于原子范数最小化可降维的二维离格doa估计方法 |
CN114624647A (zh) * | 2022-03-18 | 2022-06-14 | 北京航空航天大学 | 一种基于后向选择的虚拟阵列doa估计方法 |
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JP2017116425A (ja) * | 2015-12-24 | 2017-06-29 | 学校法人東京電機大学 | Mimoレーダシステム、および信号処理装置 |
CN107037392A (zh) * | 2017-03-01 | 2017-08-11 | 浙江大学 | 一种基于压缩感知的自由度增加型互质阵列波达方向估计方法 |
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CN110927661A (zh) * | 2019-11-22 | 2020-03-27 | 重庆邮电大学 | 基于music算法的单基地展开互质阵列mimo雷达doa估计方法 |
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US9912074B2 (en) * | 2014-12-12 | 2018-03-06 | The Boeing Company | Congruent non-uniform antenna arrays |
CN104749552A (zh) * | 2015-03-21 | 2015-07-01 | 西安电子科技大学 | 基于稀疏重构的互质阵列波达方向角估计方法 |
US11125866B2 (en) * | 2015-06-04 | 2021-09-21 | Chikayoshi Sumi | Measurement and imaging instruments and beamforming method |
CN106226729B (zh) * | 2016-07-15 | 2018-08-31 | 西安电子科技大学 | 基于四阶累量的互质阵列波达方向角估计方法 |
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JP2017116425A (ja) * | 2015-12-24 | 2017-06-29 | 学校法人東京電機大学 | Mimoレーダシステム、および信号処理装置 |
CN107037392A (zh) * | 2017-03-01 | 2017-08-11 | 浙江大学 | 一种基于压缩感知的自由度增加型互质阵列波达方向估计方法 |
CN109471086A (zh) * | 2018-10-18 | 2019-03-15 | 浙江大学 | 基于多采样快拍和集阵列信号离散傅里叶变换的互质mimo雷达波达方向估计方法 |
CN110927661A (zh) * | 2019-11-22 | 2020-03-27 | 重庆邮电大学 | 基于music算法的单基地展开互质阵列mimo雷达doa估计方法 |
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US11408960B2 (en) | 2022-08-09 |
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