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分析了单载波频域均衡系统中基于线性均衡技术的最小均方误差线性均衡算法,在此基础上提出了一种对白噪声能量的估计算法,并依此对SC-FDE系统中的均衡技术进行改进。在MATLAB下对提出的算法进行仿真验证,仿真结果表明,采用改进的频域均衡算法所得到的误码率和理论计算值非常吻合,并且使得星座图得到了很好的收敛,提高了通信系统的性能。
The linear equalization algorithm based on linear equalization in single-carrier frequency-domain equalization system is analyzed. Based on this, an estimation algorithm of white noise energy is proposed. Based on this, the equalization technique in SC-FDE system Improve. The proposed algorithm is validated by MATLAB. The simulation results show that the error rate obtained by using the improved frequency-domain equalization algorithm is in good agreement with the theoretical calculation, and the constellation map is well converged and the communication system Performance.