PEAK FACTOR REDUCTION UNIT AND BASEBAND SIGNAL PROCESSING DEVICE
    1.
    发明申请
    PEAK FACTOR REDUCTION UNIT AND BASEBAND SIGNAL PROCESSING DEVICE 有权
    峰值因子减少单元和基带信号处理装置

    公开(公告)号:US20080095284A1

    公开(公告)日:2008-04-24

    申请号:US11829405

    申请日:2007-07-27

    IPC分类号: H04B1/10

    摘要: A peak factor reduction unit that never allow peak factor reproduction even when interpolation is done in a succeeding stage. The unit detects a local maximum value of amplitude components from an input complex signal and supplies a complex signal that passes a band limiting baseband filter and an interpolation filter to a correction signal generation unit for generating a correction signal used for peak factor reduction and reduces a peak factor of the input complex signal with use of the correction signal generated from an interpolated complex signal.

    摘要翻译: 峰值因子降低单元,即使在后续阶段进行插值,也不允许峰值因子再现。 该单元从输入复合信号中检测振幅分量的局部最大值,并将通过带限基带滤波器和内插滤波器的复信号提供给校正信号生成单元,用于产生用于峰值因子减小的校正信号,并减少 使用从内插复数信号生成的校正信号的输入复信号的峰值因子。

    PEAK FACTOR REDUCTION DEVICE AND BASE STATION
    2.
    发明申请
    PEAK FACTOR REDUCTION DEVICE AND BASE STATION 有权
    峰值因子减少装置和基站

    公开(公告)号:US20110009153A1

    公开(公告)日:2011-01-13

    申请号:US12824410

    申请日:2010-06-28

    IPC分类号: H04B7/00 H01Q11/12

    CPC分类号: H04B1/0475 H04L27/2623

    摘要: The function of comparing power of a signal obtained by multiplying an input signal by an EVM target value and power of a peak suppression signal, and automatically adjusting a peak factor threshold value Vt in such a manner that the values of both power become equal to each other, is added to the peak factor reduction device. The peak factor reduction device is also added with the function of comparing instantaneous amplitude values of a signal Sout after a peak factor reduction and the peak factor threshold value Vt, and automatically calculating a peak detection width N so as to suppress the residual of each peak.

    摘要翻译: 将通过将输入信号乘以EVM目标值而获得的信号的功率与峰值抑制信号的功率进行比较的功能,并且以使得两个功率的值变得等于每个的方式自动调整峰值因子阈值Vt的功能 其他,被添加到峰值因子减少装置。 峰值因数降低装置还具有比较峰值因子降低后的信号Sout的瞬时振幅值与峰值因子阈值Vt的功能,并且自动计算峰值检测宽度N以便抑制每个峰值的残差 。

    MATCHED FILTER AND RECEIVER
    3.
    发明申请
    MATCHED FILTER AND RECEIVER 失效
    匹配过滤器和接收器

    公开(公告)号:US20090175391A1

    公开(公告)日:2009-07-09

    申请号:US12338391

    申请日:2008-12-18

    申请人: Kazuyuki HORI

    发明人: Kazuyuki HORI

    IPC分类号: H04L27/06

    摘要: A matched filter and receiver is provided to delete the tap coefficients of a matched filter used in an OFDM receiver. In the matched filter and receiver, a transmitting signal is generated by using a symmetric series (Y) obtained from C[k]=exp [j*π*M/N*(k+0.5)̂2], where X=[0, C[N/2], C[N/2+1], . . . , C[N−1], 0, 0, . . . , 0, C[0], C[1], . . . , C[N/2−1]], and Y=inverse FFT (X) as a base symbol. The matched filter, which detects the signal, reduces the number of multipliers by using the coefficient symmetric property.

    摘要翻译: 提供了匹配滤波器和接收机来删除在OFDM接收机中使用的匹配滤波器的抽头系数。 在匹配滤波器和接收机中,通过使用从C [k] = exp [j * pi * M / N *(k + 0.5)2]获得的对称序列(Y)生成发送信号,其中X = [0 ,C [N / 2],C [N / 2 + 1],。 。 。 ,C [N-1],0,0,...。 。 。 ,0,C [0],C [1],。 。 。 ,C [N / 2-1]],Y =逆FFT(X)作为基本符号。 检测信号的匹配滤波器通过使用系数对称属性来减少乘法器的数量。