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文章 2023-09-15 来自：开发者社区

m基于uw导频序列和cordic算法的基带数据帧频偏估计和补偿FPGA实现,包含testbench

1.算法仿真效果本系统进行了Vivado2019.2平台的开发，测试结果如下：我们可以看到，带有频偏的基带信号o_I_fre和o_Q_fre得到了有效的频偏补偿，其补偿后的数据o_Ir和o_Qr和原始的基带数据基本一致。 2.算法涉及理论知识概要基带数据帧频偏估计和补偿是一种用于纠正数字通信系统中频率偏差的技术。在数字通信系统中，发送端将信号进行调制后发送到信道中，接收端接收到...

文章 2023-08-11 来自：开发者社区

基于FFT傅里叶变换的64QAM基带信号频偏估计和补偿算法FPGA实现,包含testbench和matlab星座图显示

1.算法仿真效果本系统进行了Vivado2019.2平台的开发，并使用matlab2022a对结果进行星座图的显示：将FPGA的频偏基带QPSK信号和频偏补偿后的QPSK基带信号使用matlab显示星座图，结果如下： 2.算法涉及理论知识概要 FFT傅里叶变换是一种高效的频谱分析方法，可以将时域信号转换为频域信号，用于频偏估计。FFT傅里叶变换是一种将时域信号转换为频域信号的方法...

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