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1. 发明授权

US07117016B2 Adaptive antenna base station apparatus 有权
标题翻译：自适应天线基站装置
公开(公告)号：US07117016B2
公开(公告)日：2006-10-03
申请号：US10383552
申请日：2003-03-10
申请人： Takaaki Kisigami , Takashi Fukagawa , Yasuaki Yuda , Masayuki Hoshino
发明人： Takaaki Kisigami , Takashi Fukagawa , Yasuaki Yuda , Masayuki Hoshino
IPC分类号： H04M1/00 , G01S5/02 , H03K9/00
CPC分类号： H04B7/086 , H04B1/712 , H04B7/0617
摘要： An adaptive antenna base station apparatus comprises an array antenna including N (N being a natural number) antenna elements; N reception sections for respectively performing orthogonal detection of high-frequency signals, respectively received by the antenna elements, after frequency conversion; N×M despreading sections for performing despreading operations, corresponding to delay times of M (M being a natural number) path components included in output signals of the reception sections; M correlation computing sections for performing correlations among the antenna elements for each path; a correlation combining section for combining output signals of the correlation computing sections; and a DOA estimating section for estimating a direction of arrival (DOA) by using an output of the correlation combining section. This can ensure collective estimation of DOAs of M path components, thereby reducing the amount of computation of estimating the DOAs for plural paths and the cost for the apparatus.
摘要翻译：一种自适应天线基站装置，包括：N（N是自然数）天线元件的阵列天线; N个接收部分，用于在频率转换之后分别执行由天线元件接收的高频信号的正交检测; 用于执行解扩操作的NxM解扩部分，对应于包括在接收部分的输出信号中的M（M是自然数）路径分量的延迟时间; M个相关计算部分，用于对每个路径执行天线元件之间的相关; 相关组合部分，用于组合相关计算部分的输出信号; 以及用于通过使用相关合成部分的输出来估计到达方向（DOA）的DOA估计部分。这可以确保对M路径分量的DOA的集体估计，从而减少对多路径的DOA估计的计算量和装置的成本。

2. 发明授权

US08520641B2 Radio communication device and arrival direction estimation method 有权
公开(公告)号：US08520641B2
公开(公告)日：2013-08-27
申请号：US12979305
申请日：2010-12-27
申请人： Takaaki Kisigami , Takashi Fukagawa , Yasuaki Yuda , Keiji Takausaki , Shoji Miyamoto
发明人： Takaaki Kisigami , Takashi Fukagawa , Yasuaki Yuda , Keiji Takausaki , Shoji Miyamoto
IPC分类号： H04W4/00
CPC分类号： H04B1/7113 , G01S3/74 , H04B1/7117 , H04B7/0617 , H04B7/086 , H04B2201/70701 , H04B2201/70715 , H04L1/06
摘要： A receiver having an array antenna estimates arrival directions of multiple paths that arrive with an angular spread. Consequently, arrival direction estimation accuracy can be ensured without increasing throughput even if the power every path is low by estimating an average arrival direction of an entire set of multiple paths having the angular spread from a result of one angular spectrum by multiple correlation operation units that perform mutual correlation operations with pilot signals for baseband signals received by the array antenna, a path detection unit that detects multiple arrival path receiving timings by generating a delay profile based on output of each of the correlation operation units, a path correlation value synthesis unit that synthesizes a correlation operation value calculated in the multiple correlation operation units and an arrival direction estimation unit that collectively estimates multiple path arrival directions using output of the path correlation value synthesis unit.

3. 发明授权

US07263083B2 Radio communication device and arrival direction estimation method 有权
标题翻译：无线电通信装置和到达方向估计方法
公开(公告)号：US07263083B2
公开(公告)日：2007-08-28
申请号：US10430397
申请日：2003-05-07
申请人： Takaaki Kisigami , Takashi Fukagawa , Yasuaki Yuda , Keiji Takausaki , Shoji Miyamoto
发明人： Takaaki Kisigami , Takashi Fukagawa , Yasuaki Yuda , Keiji Takausaki , Shoji Miyamoto
IPC分类号： H04B7/216
CPC分类号： H04B1/7113 , G01S3/74 , H04B1/7117 , H04B7/0617 , H04B7/086 , H04B2201/70701 , H04B2201/70715 , H04L1/06
摘要： A receiver having an array antenna estimates arrival directions of multiple paths that arrive with an angular spread. Consequently, arrival direction estimation accuracy can be ensured without increasing throughput even if the power every path is low by estimating an average arrival direction of an entire set of multiple paths having the angular spread from a result of one angular spectrum by multiple correlation operation units that perform mutual correlation operations with pilot signals for baseband signals received by the array antenna, a path detection unit that detects multiple arrival path receiving timings by generating a delay profile based on output of each of the correlation operation units, a path correlation value synthesis unit that synthesizes a correlation operation value calculated in the multiple correlation operation units and an arrival direction estimation unit that collectively estimates multiple path arrival directions using output of the path correlation value synthesis unit.
摘要翻译：具有阵列天线的接收机估计以角度扩展到达的多个路径的到达方向。因此，即使通过多个相关运算单元从一个角度频谱的结果估计具有角度扩展的整个多个路径的整个组的平均到达方向，即使通过多个相关运算单元来估计每个路径的功率，也可以确保到达方向估计精度，执行与阵列天线接收的基带信号的导频信号的相互关联操作;路径检测单元，通过基于每个相关运算单元的输出生成延迟分布来检测多个到达路径接收定时;路径相关值合成单元，合成在多个相关运算单元中计算出的相关运算值和使用路径相关值合成单元的输出共同估计多个路径到达方向的到达方向估计单元。

4. 发明授权

US08532064B2 Radio communication device and arrival direction estimation method 有权
公开(公告)号：US08532064B2
公开(公告)日：2013-09-10
申请号：US12979318
申请日：2010-12-27
申请人： Takaaki Kisigami , Takashi Fukagawa , Yasuaki Yuda , Keiji Takausaki , Shoji Miyamoto
发明人： Takaaki Kisigami , Takashi Fukagawa , Yasuaki Yuda , Keiji Takausaki , Shoji Miyamoto
IPC分类号： H04Q7/00
CPC分类号： H04B1/7113 , G01S3/74 , H04B1/7117 , H04B7/0617 , H04B7/086 , H04B2201/70701 , H04B2201/70715 , H04L1/06
摘要： A receiver having an array antenna estimates arrival directions of multiple paths that arrive with an angular spread. Consequently, arrival direction estimation accuracy can be ensured without increasing throughput even if the power every path is low by estimating an average arrival direction of an entire set of multiple paths having the angular spread from a result of one angular spectrum by multiple correlation operation units that perform mutual correlation operations with pilot signals for baseband signals received by the array antenna, a path detection unit that detects multiple arrival path receiving timings by generating a delay profile based on output of each of the correlation operation units, a path correlation value synthesis unit that synthesizes a correlation operation value calculated in the multiple correlation operation units and an arrival direction estimation unit that collectively estimates multiple path arrival directions using output of the path correlation value synthesis unit.

5. 发明申请

US20110090813A1 RADIO COMMUNICATION DEVICE AND ARRIVAL DIRECTION ESTIMATION METHOD 有权
标题翻译：无线电通信设备和到达方向估计方法
公开(公告)号：US20110090813A1
公开(公告)日：2011-04-21
申请号：US12979318
申请日：2010-12-27
申请人： Takaaki Kisigami , Takashi Fukagawa , Yasuaki Yuda , Keiji Takakusaki , Shoji Miyamoto
发明人： Takaaki Kisigami , Takashi Fukagawa , Yasuaki Yuda , Keiji Takakusaki , Shoji Miyamoto
IPC分类号： H04L12/26
CPC分类号： H04B1/7113 , G01S3/74 , H04B1/7117 , H04B7/0617 , H04B7/086 , H04B2201/70701 , H04B2201/70715 , H04L1/06
摘要： A receiver having an array antenna estimates arrival directions of multiple paths that arrive with an angular spread. Consequently, arrival direction estimation accuracy can be ensured without increasing throughput even if the power every path is low by estimating an average arrival direction of an entire set of multiple paths having the angular spread from a result of one angular spectrum by multiple correlation operation units that perform mutual correlation operations with pilot signals for baseband signals received by the array antenna, a path detection unit that detects multiple arrival path receiving timings by generating a delay profile based on output of each of the correlation operation units, a path correlation value synthesis unit that synthesizes a correlation operation value calculated in the multiple correlation operation units and an arrival direction estimation unit that collectively estimates multiple path arrival directions using output of the path correlation value synthesis unit.
摘要翻译：具有阵列天线的接收机估计以角度扩展到达的多个路径的到达方向。因此，即使通过多个相关运算单元从一个角度频谱的结果估计具有角度扩展的整个多个路径的整个组的平均到达方向，即使通过多个相关运算单元来估计每个路径的功率，也可以确保到达方向估计精度，执行与阵列天线接收的基带信号的导频信号的相互关联操作;路径检测单元，通过基于每个相关运算单元的输出生成延迟分布来检测多个到达路径接收定时;路径相关值合成单元，合成在多个相关运算单元中计算出的相关运算值和使用路径相关值合成单元的输出共同估计多个路径到达方向的到达方向估计单元。

6. 发明申请

US20110090120A1 RADIO COMMUNICATION DEVICE AND ARRIVAL DIRECTION ESTIMATION METHOD 有权
公开(公告)号：US20110090120A1
公开(公告)日：2011-04-21
申请号：US12979305
申请日：2010-12-27
申请人： Takaaki Kisigami , Takashi Fukagawa , Yasuaki Yuda , Keiji Takausaki , Shoji Miyamoto
发明人： Takaaki Kisigami , Takashi Fukagawa , Yasuaki Yuda , Keiji Takausaki , Shoji Miyamoto
IPC分类号： G01S3/16
CPC分类号： H04B1/7113 , G01S3/74 , H04B1/7117 , H04B7/0617 , H04B7/086 , H04B2201/70701 , H04B2201/70715 , H04L1/06
摘要： A receiver having an array antenna estimates arrival directions of multiple paths that arrive with an angular spread. Consequently, arrival direction estimation accuracy can be ensured without increasing throughput even if the power every path is low by estimating an average arrival direction of an entire set of multiple paths having the angular spread from a result of one angular spectrum by multiple correlation operation units that perform mutual correlation operations with pilot signals for baseband signals received by the array antenna, a path detection unit that detects multiple arrival path receiving timings by generating a delay profile based on output of each of the correlation operation units, a path correlation value synthesis unit that synthesizes a correlation operation value calculated in the multiple correlation operation units and an arrival direction estimation unit that collectively estimates multiple path arrival directions using output of the path correlation value synthesis unit.

7. 发明授权

US07860064B2 Radio communication device and arrival direction estimation method 有权
标题翻译：无线电通信装置和到达方向估计方法
公开(公告)号：US07860064B2
公开(公告)日：2010-12-28
申请号：US11833037
申请日：2007-08-02
申请人： Takaaki Kisigami , Takashi Fukagawa , Yasuaki Yuda , Keiji Takausaki , Shoji Miyamoto
发明人： Takaaki Kisigami , Takashi Fukagawa , Yasuaki Yuda , Keiji Takausaki , Shoji Miyamoto
IPC分类号： H04B7/208
CPC分类号： H04B1/7113 , G01S3/74 , H04B1/7117 , H04B7/0617 , H04B7/086 , H04B2201/70701 , H04B2201/70715 , H04L1/06
摘要： A receiver having an array antenna estimates arrival directions of multiple paths that arrive with an angular spread. Consequently, arrival direction estimation accuracy can be ensured without increasing throughput even if the power every path is low by estimating an average arrival direction of an entire set of multiple paths having the angular spread from a result of one angular spectrum by multiple correlation operation units that perform mutual correlation operations with pilot signals for baseband signals received by the array antenna, a path detection unit that detects multiple arrival path receiving timings by generating a delay profile based on output of each of the correlation operation units, a path correlation value synthesis unit that synthesizes a correlation operation value calculated in the multiple correlation operation units and an arrival direction estimation unit that collectively estimates multiple path arrival directions using output of the path correlation value synthesis unit.
摘要翻译：具有阵列天线的接收机估计以角度扩展到达的多个路径的到达方向。因此，即使通过多个相关运算单元从一个角度频谱的结果估计具有角度扩展的整个多个路径的整个组的平均到达方向，即使通过多个相关运算单元来估计每个路径的功率，也可以确保到达方向估计精度，执行与阵列天线接收的基带信号的导频信号的相互关联操作;路径检测单元，通过基于每个相关运算单元的输出生成延迟分布来检测多个到达路径接收定时;路径相关值合成单元，合成在多个相关运算单元中计算出的相关运算值和使用路径相关值合成单元的输出共同估计多个路径到达方向的到达方向估计单元。

8. 发明申请

US20070273584A1 RADIO COMMUNICATION DEVICE AND ARRIVAL DIRECTION ESTIMATION METHOD 有权
标题翻译：无线电通信设备和到达方向估计方法
公开(公告)号：US20070273584A1
公开(公告)日：2007-11-29
申请号：US11833037
申请日：2007-08-02
申请人： Takaaki Kisigami , Takashi Fukagawa , Yasuaki Yuda , Keiji Takakusaki , Shoji Miyamoto
发明人： Takaaki Kisigami , Takashi Fukagawa , Yasuaki Yuda , Keiji Takakusaki , Shoji Miyamoto
IPC分类号： G01S3/28
CPC分类号： H04B1/7113 , G01S3/74 , H04B1/7117 , H04B7/0617 , H04B7/086 , H04B2201/70701 , H04B2201/70715 , H04L1/06
摘要： A receiver having an array antenna estimates arrival directions of multiple paths that arrive with an angular spread. Consequently, arrival direction estimation accuracy can be ensured without increasing throughput even if the power every path is low by estimating an average arrival direction of an entire set of multiple paths having the angular spread from a result of one angular spectrum by multiple correlation operation units that perform mutual correlation operations with pilot signals for baseband signals received by the array antenna, a path detection unit that detects multiple arrival path receiving timings by generating a delay profile based on output of each of the correlation operation units, a path correlation value synthesis unit that synthesizes a correlation operation value calculated in the multiple correlation operation units and an arrival direction estimation unit that collectively estimates multiple path arrival directions using output of the path correlation value synthesis unit.
摘要翻译：具有阵列天线的接收机估计以角度扩展到达的多个路径的到达方向。因此，即使通过多个相关运算单元从一个角度频谱的结果估计具有角度扩展的整个多个路径的整个组的平均到达方向，即使通过多个相关运算单元来估计每个路径的功率，也可以确保到达方向估计精度，执行与阵列天线接收的基带信号的导频信号的相互关联操作;路径检测单元，通过基于每个相关运算单元的输出生成延迟分布来检测多个到达路径接收定时;路径相关值合成单元，合成在多个相关运算单元中计算出的相关运算值和使用路径相关值合成单元的输出共同估计多个路径到达方向的到达方向估计单元。

9. 发明授权

US06642888B2 Radio-wave arrival-direction estimating apparatus and directional variable transceiver 有权
公开(公告)号：US06642888B2
公开(公告)日：2003-11-04
申请号：US10020477
申请日：2001-12-12
申请人： Takaaki Kishigami , Takashi Fukagawa , Yasuaki Yuda , Masayuki Hoshino
发明人： Takaaki Kishigami , Takashi Fukagawa , Yasuaki Yuda , Masayuki Hoshino
IPC分类号： G01S502
CPC分类号： G06K9/0057 , G01S3/74
摘要： A radio-wave arrival-direction apparatus calculates a correlation matrix of received signals by correlation calculation between antenna elements, and calculates a noise spatial eigenmatrix, of which each row or column is an eigenvector belonging to a noise eigen-space, by eigenvalue factorization of the correlation matrix. The apparatus also factorizes a matrix including a product of the noise spatial eigenmatrix and a conjugated and transposed matrix of it to an upper or lower triangular matrix, using cholesky factorization. The apparatus calculates an angle evaluation value in a predetermined angle range of an arrival-angle evaluation function using the derived upper or lower triangular matrix, and determines an arrival angle based on the calculation result. A calculation amount in a variable angle range can be thus reduced without causing accuracy degradation of arrival direction, in an algorism requiring an angle sweep for arrival angle estimation of MUSIC method or the like.

10. 发明授权

US06897807B2 Radio-wave arrival-direction estimating apparatus and directional variable transceiver 有权
标题翻译：无线电波到达方向估计装置和方向可变收发器
公开(公告)号：US06897807B2
公开(公告)日：2005-05-24
申请号：US10817978
申请日：2004-04-05
申请人： Takaaki Kishigami , Takashi Fukagawa , Yasuaki Yuda , Masayuki Hoshino
发明人： Takaaki Kishigami , Takashi Fukagawa , Yasuaki Yuda , Masayuki Hoshino
IPC分类号： G01S3/74 , G06K9/00 , G01S5/02
CPC分类号： G06K9/0057 , G01S3/74
摘要： A radio-wave arrival-direction apparatus calculates a correlation matrix of received signals by correlation calculation between antenna elements, and calculates a noise spatial eigenmatrix, of which each row or column is an eigenvector belonging to a noise eigen-space, by eigenvalue factorization of the correlation matrix. The apparatus also factorizes a matrix including a product of the noise spatial eigenmatrix and a conjugated and transposed matrix of it to an upper or lower triangular matrix, using cholesky factorization. The apparatus calculates an angle evaluation value in a predetermined angle range of an arrival-angle evaluation function using the derived upper or lower triangular matrix, and determines an arrival angle based on the calculation result. A calculation amount in a variable angle range can be thus reduced without causing accuracy degradation of arrival direction, in an algorism requiring all angle sweep for arrival angle estimation of MUSIC method or the like.
摘要翻译：无线电波到达方向装置通过天线元件之间的相关计算来计算接收信号的相关矩阵，并且通过特征值因子分解来计算其每行或列是属于噪声特征空间的特征向量的噪声空间本征矩阵相关矩阵。该装置还使用cholesky因式分解将包括噪声空间本征矩阵的乘积和其共轭和转置矩阵的矩阵分解为上或下三角矩阵。该装置使用导出的上下三角矩阵来计算到达角度评估函数的预定角度范围内的角度评估值，并且基于计算结果确定到达角度。在可能的角度范围内的计算量可以在不需要对MUSIC方法等的到达角度估计进行所有角度扫描的算法中而不会导致到达方向的精度降低而降低。

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