摘要
信噪比是通信信号处理中的一个重要参数,目前许多前沿的技术都以信噪比估计为基础,通过其得到信道的先验信息来获得最佳性能。准确的信噪比估计,保证了通信的质量。二阶四阶矩(M2M4)信号信噪比估计算法是一种常用的盲估计算法,通过对M2M4算法进行分析,并为了便于FPGA实现做了适当简化。通过一套完整的硬件系统,对算法进行了验证,证明了算法的正确性。
SNR （Signal-to-Noise Ratio） is an important parameter in communication signal processing and many advanced algo- rithms need this information to obtain optimal performance. Accurate SNR estimation leads to reliable communication. Algorithm of sec- ond-order and fourth-order moments （M2M4） is a useful algorithm for SNR estimation. Based on research on M2M4,a simplified algo- rithm is proposed for hardware implementation. Finally,the algorithm is tested based on a hardware suit,and it is shown that the pro- posed algorithm is correct.
出处
《无线电工程》
2013年第10期43-46,共4页
Radio Engineering
关键词
信噪比
M2M4
盲估计
FPGA
signal-to-noise ratio
second-order and fourth-order moments
blind estimation
FPGA
