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主要介绍了一种适用于稀疏信道的复杂度可大大降低的Viterbi均衡算法。在本算法中,计算的复杂度并不依赖于信道冲激响应的长度,而是依赖于信道冲激响应中非零系数的数目。仿真结果表明,在稀疏信道下,此算法具有良好的性能,它不仅适用于最小相位系统,也适用于非最小相位系统。
This paper mainly introduces a Viterbi equalization algorithm which is suitable for the sparse channel whose complexity can be greatly reduced. In this algorithm, the computational complexity does not depend on the length of the channel impulse response, but rather on the number of non-zero coefficients in the channel impulse response. The simulation results show that this algorithm has good performance under sparse channel, which is not only applicable to the minimum phase system but also to the non-minimum phase system.