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    • 7. 发明授权
    • Receiver and frequency information estimating method
    • 接收机和频率信息估计方法
    • US08000224B2
    • 2011-08-16
    • US12302794
    • 2007-06-07
    • Yasuhiro HamaguchiHideo NambaShimpei To
    • Yasuhiro HamaguchiHideo NambaShimpei To
    • H04J11/00
    • H04L25/0232H04L25/022H04L27/265H04L2025/03414H04L2025/03426
    • A receiver 100 has a Fourier transform section 105 Fourier-transforming symbols for propagation path estimation including subcarriers modulated by known signals different for two or more antennas to calculate first frequency information, a multiplying section 107 multiplying the first frequency information by complex conjugate signals of two or more known codes to calculate second frequency information of each of the subcarriers, an interpolation information generating section 121 selecting partial information from the second frequency information on the basis of the known codes and generating interpolation frequency information interpolating the subcarriers using the selected information, a subcarrier interpolating section 122 interpolating the interpolation frequency information to the second frequency information to calculate third frequency information, and an inverse Fourier transform section 109 inverse-Fourier-transforming the third frequency information.
    • 接收机100具有付里叶变换部105,傅里叶变换用于传播路径估计的符号,包括由两个或多个天线不同的已知信号调制的子载波,以计算第一频率信息;乘法部分107将第一频率信息乘以二 或更多的已知代码来计算每个子载波的第二频率信息,插值信息生成部分121根据已知代码从第二频率信息中选择部分信息,并使用所选择的信息产生插值子载波的插值频率信息; 子载波内插部分122将内插频率信息内插到第二频率信息以计算第三频率信息,以及逆傅立叶变换部分109对第三频率信息进行傅立叶逆变换。
    • 9. 发明申请
    • RECEIVER AND FREQUENCY INFORMATION ESTIMATING METHOD
    • 接收和频率信息估计方法
    • US20090196166A1
    • 2009-08-06
    • US12302794
    • 2007-06-07
    • Yasuhiro HamaguchiHideo NambaShimpei To
    • Yasuhiro HamaguchiHideo NambaShimpei To
    • H04J11/00
    • H04L25/0232H04L25/022H04L27/265H04L2025/03414H04L2025/03426
    • A receiver 100 has a Fourier transform section 105 Fourier-transforming symbols for propagation path estimation including subcarriers modulated by known signals different for two or more antennas to calculate first frequency information, a multiplying section 107 multiplying the first frequency information by complex conjugate signals of two or more known codes to calculate second frequency information of each of the subcarriers, an interpolation information generating section 121 selecting partial information from the second frequency information on the basis of the known codes and generating interpolation frequency information interpolating the subcarriers using the selected information, a subcarrier interpolating section 122 interpolating the interpolation frequency information to the second frequency information to calculate third frequency information, and an inverse Fourier transform section 109 inverse-Fourier-transforming the third frequency information.
    • 接收机100具有付里叶变换部105,傅里叶变换用于传播路径估计的符号,包括由两个或多个天线不同的已知信号调制的子载波,以计算第一频率信息;乘法部分107将第一频率信息乘以二 或更多的已知代码来计算每个子载波的第二频率信息,插值信息生成部分121根据已知代码从第二频率信息中选择部分信息,并使用所选择的信息产生插值子载波的插值频率信息; 子载波内插部分122将内插频率信息内插到第二频率信息以计算第三频率信息,以及逆傅立叶变换部分109对第三频率信息进行傅立叶逆变换。