摘要： 基于二阶统计量的盲均衡算法大多要求估计信道阶数。根据噪声功率随信道阶数的变化特点，提出一种新的阶数估计算法。实验表明，与传统算法相比，该算法不仅复杂度低，在低信噪比和小样本个数情况下估计性能良好，且不依赖于具体的盲信道估计算法，具有较强的适用性。

关键词: 盲均衡, 噪声功率, 阶数估计

Abstract: For many blind channel estimation algorithms based on second-order statistics, knowledge of the channel order has to be available. In light of the fact that the noise power is affected by the change of the channel order, a novel algorithm is proposed. The proposed algorithm, compared with conventional algorithms, is proved to be of low computation complexity and can work well under low SNR and small set of data. In addition, the new algorithm is independent of the concrete blind channel estimation methods.

Key words: blind equalization, noise power, order estimation

中图分类号: 

• TN011.5