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    • 13. 发明申请
    • INTER-CARRIER INTERFERENCE PHASE NOISE COMPENSATION BASED ON PHASE NOISE SPECTRUM APPROXIMATION
    • 基于相位噪声谱逼近的互操作干扰相位噪声补偿
    • US20140270015A1
    • 2014-09-18
    • US13996793
    • 2012-06-28
    • Vladimir KravtsovMichael GenossarAlexey KhoryaevArtyom Lomayev
    • Vladimir KravtsovMichael GenossarAlexey KhoryaevArtyom Lomayev
    • H04B1/12H04L27/148
    • H04B1/12H04L25/03821H04L27/148H04L27/2647H04L2025/03414
    • An approach is provided to compensate for inter-carrier interference caused by phase noise in a transmitted or received signal. The approach involves causing an estimation of one or more phase noise spectrum taps that cause inter-carrier interference in a received signal. The approach also involves causing an approximation of an instantaneous phase noise spectrum by a low order finite impulse response filter based on the estimated one or more phase noise spectrum taps. The approach additionally involves determining a de-convolution filter having two or more filter coefficients for one or more orthogonal frequency-division multiplexing symbols associated with the received signal. The approach further involves causing the de-convolution filter to be matched to the approximated instantaneous phase noise spectrum. The approach also involves causing the inter-carrier interference caused by phase noise to be compensated for based on a de-convolution procedure that applies the de-convolution filter to the one or more orthogonal frequency-division multiplexing symbols.
    • 提供了一种方法来补偿由发送或接收信号中的相位噪声引起的载波间干扰。 该方法包括对在接收信号中引起载波间干扰的一个或多个相位噪声频谱抽头进行估计。 该方法还涉及通过基于估计的一个或多个相位噪声频谱抽头的低阶有限脉冲响应滤波器来引起瞬时相位噪声谱的近似。 该方法还涉及确定具有用于与接收信号相关联的一个或多个正交频分复用符号的两个或多个滤波器系数的去卷积滤波器。 该方法还涉及使解卷积滤波器与近似的瞬时相位噪声谱匹配。 该方法还包括基于将去卷积滤波器应用于一个或多个正交频分复用符号的去卷积过程来导致由相位噪声引起的载波间干扰来补偿。