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    • 5. 发明授权
    • System and method for spur estimation and mitigation
    • 刺激估计和减轻的系统和方法
    • US08451918B1
    • 2013-05-28
    • US12272629
    • 2008-11-17
    • Hao-Ren ChengGaspar LeeWilliam J. McFarlandPaul J. HustedJustin Huang
    • Hao-Ren ChengGaspar LeeWilliam J. McFarlandPaul J. HustedJustin Huang
    • H04K1/10
    • H04K3/228
    • A spur detection and spur cancellation apparatus in a multiple sub-carrier digital communication receiver includes a spur detection block that estimates, using one or more Fourier transforms, a frequency location of a narrowband interference spur in a received digital signal that includes a plurality of sub-carriers, and a spur cancellation block that attenuates the estimated narrowband interference spur. The spur detection block may use a fast Fourier transform (FFT) and/or a discrete Fourier transform (DFT) to locate a frequency and to measure a discrete power spectra of the narrowband interference spur. A channel state information block in the receiver may adjust a channel state information metric based on the located frequency and/or the measured discrete power spectra of the narrowband interference spur.
    • 多子载波数字通信接收机中的支线检测和杂散消除装置包括一个支线检测块,其使用一个或多个傅里叶变换来估计接收到的数字信号中的窄带干扰杂波的频率位置,所述数字信号包括多个子载波 载波,以及减弱估计的窄带干扰刺激的支线消除块。 支线检测块可以使用快速傅里叶变换(FFT)和/或离散傅里叶变换(DFT)来定位频率并测量窄带干扰刺激的离散功率谱。 接收机中的信道状态信息块可以基于所定义的频率和/或窄带干扰支线的测量离散功率谱来调整信道状态信息度量。