A CCFD Self-Interference Channel Estimation Algorithm with Variable Window
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摘要: 在同时同频全双工(CCFD)中,基站发射、接收通道非线性引入的附加干扰以及基站周围环境的变化,会影响数字域自干扰信道估计精度。该文提出了一种变窗长离散傅里叶变换信道估计算法,算法根据实际自干扰信道特征选取最优干扰抑制窗长,提高自干扰信道的估计精度。仿真结果表明:在自干扰信道为莱斯信道,干噪比为15 dB时,采用该算法的数字自干扰抑制能力为22 dB,比采用最小二乘信道估计高7 dB,比采用固定窗长离散傅里叶变换信道估计高3 dB。
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