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单载波频域均衡(SC-FDE)系统传统上采用最小均方误差(MMSE)算法和快速块最小均方(FBLMS)算法进行频域均衡,文中对单载波频域均衡系统中归一化FBLMS算法进行了仿真研究,并与MMSE算法和FBLMS算法进行比较。测试和分析了系统的均方误差和误码率。仿真结果表明:该算法克服了收敛速度和失调量之间的矛盾,提高了算法的收敛速度,降低了误码率,该结果对SC-FDE系统的进一步研究具有参考价值。
The single-carrier frequency-domain equalization (SC-FDE) system traditionally uses minimum MMSE and FBLMS algorithms for frequency domain equalization. In this paper, normalized FBLMS The algorithm is simulated and compared with MMSE algorithm and FBLMS algorithm. The mean square error and bit error rate of the system are tested and analyzed. The simulation results show that the algorithm overcomes the contradiction between convergence speed and offset, improves the convergence speed and reduces the bit error rate. This result is of great value to further research of SC-FDE system.