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    • 3. 发明授权
    • Adaptive antenna radio communication device
    • 自适应天线无线电通信设备
    • US07333056B2
    • 2008-02-19
    • US10524253
    • 2003-09-26
    • Takaaki KishigamiTakashi FukagawaYasuaki YudaKeiji TakakusakiShoji Miyamoto
    • Takaaki KishigamiTakashi FukagawaYasuaki YudaKeiji TakakusakiShoji Miyamoto
    • G01S5/02
    • G01S3/043G01S3/14H04B7/086H04L27/2601
    • An adaptive antenna radio communication device comprises a divided band direction estimating unit (4) for estimating the direction by calculating the cross correlations between a pilot signal and sub-carrier signals of the respective divided bands received by an array antenna (1) and calculating a spatial profile from correlation matrices determined by combining the correlation values between antenna elements of the different sub-carriers according to the output of the cross correlation calculation; a divided band array weight creating unit (5) for creating a weight of a receive array having a directional beam in the direction of estimation for each divided band; and a sub-carrier directivity creating unit (6) for creating a directivity by multiplication-combining the created receive array weight with the corresponding sub-carrier signal.
    • 一种自适应天线无线电通信装置包括:分频带方向估计单元,用于通过计算由阵列天线(1)接收的各个分频带的导频信号和副载波信号之间的互相关,来估计方向,并计算 通过根据互相关计算的输出组合不同子载波的天线元件之间的相关值确定的相关矩阵的空间分布; 分割带阵列权重创建单元(5),用于在每个分割频带的方向上产生具有定向波束的接收阵列的权重; 以及子载波方向性创建单元(6),用于通过将创建的接收阵列权重与相应的副载波信号相乘合成来产生方向性。
    • 5. 发明授权
    • Path search circuit, radio receiver and radio transmitter, utilizing a directional beam
    • 路径搜索电路,无线电接收机和无线电发射机,利用定向波束
    • US07088956B2
    • 2006-08-08
    • US10411344
    • 2003-04-10
    • Takaaki KishigamiTakashi FukagawaYasuaki YudaKeiji TakakusakiShoji Miyamoto
    • Takaaki KishigamiTakashi FukagawaYasuaki YudaKeiji TakakusakiShoji Miyamoto
    • H04B1/00H04B15/00
    • H04B1/7113H04B1/7117H04B7/086
    • A path search circuit according to the present invention has an orthogonal multi-beam forming section 4 for directional reception with a plurality of orthogonal multi-beams orthogonal one to another, correlation-operating sections 61–6M for correlation-operating outputs of the orthogonal multi-beam forming section 4 with a known signal, weight multiplying sections 81–8Nb for multiplying the output of the correlation-operating section 61–6M by a weight converted into a beam space, delay profile generating sections 91–9Nb for generating delay profiles from the output signals of the weight multiplying sections 81–8Nb, and a path detecting section 10 for detecting a reception timing and arrival direction of arrival path from the delay profile. This path search circuit can enhance the accuracy of path direction detection by the use of a directional reception signal, and further reduce the direction dependence of path timing detection accuracy.
    • 根据本发明的路径搜索电路具有用于定向接收的正交多波束形成部分4,其中多个正交多波束彼此正交,相关运算部分61-6M用于正交的相关运算输出 具有已知信号的多波束形成部分4,用于将相关操作部分61-6M的输出乘以被转换成波束空间的权重的加权乘法部分81-8 Nb,延迟分布生成部分91-9 Nb 从权重乘法部分81-8 Nb的输出信号产生延迟分布;以及路径检测部分10,用于从延迟分布中检测接收定时和到达方向到达方向。 该路径搜索电路可以通过使用定向接收信号来提高路径方向检测的精度,进一步减小路径定时检测精度的方向依赖性。
    • 6. 发明授权
    • Adaptive antenna radio communication device
    • 自适应天线无线电通信设备
    • US07940215B2
    • 2011-05-10
    • US11961340
    • 2007-12-20
    • Takaaki KishigamiTakashi FukagawaYasuaki YudaKeiji TakakusakiShoji Miyamoto
    • Takaaki KishigamiTakashi FukagawaYasuaki YudaKeiji TakakusakiShoji Miyamoto
    • G01S5/02
    • G01S3/043G01S3/14H04B7/086H04L27/2601
    • An adaptive antenna radio communication device comprises a divided band direction estimating unit for estimating the direction by calculating the cross correlations between a pilot signal and sub-carrier signals of the respective divided bands received by an array antenna and calculating a spatial profile from correlation matrices determined by combining the correlation values between antenna elements of the different sub-carriers according to the output of the cross correlation calculation; a divided band array weight creating unit for creating a weight of a receive array having a directional beam in the direction of estimation for each divided band; and a sub-carrier directivity creating unit for creating a directivity by multiplication-combining the created receive array weight with the corresponding sub-carrier signal.
    • 一种自适应天线无线电通信设备包括:分频带方向估计单元,用于通过计算由阵列天线接收的各个分频带的导频信号和副载波信号之间的互相关,来估计该方向,并根据确定的相关矩阵计算空间分布 通过根据互相关计算的输出组合不同子载波的天线元件之间的相关值; 分割带阵列权重创建单元,用于为每个分割频带创建在估计方向上具有定向波束的接收阵列的权重; 以及子载波方向性创建单元,用于通过将所创建的接收阵列权重与相应的副载波信号相乘合成来产生方向性。