电子学报Issue(7)：1284-1289,6.DOI:10.3969/j.issn.0372-2112.2013.07.007
多径衰落环境中具有调制识别能力的盲均衡新算法
New Blind Equalization Algorithm with Ability of Modulation Classification Under the Condition of Multipath Propagation
摘要
Abstract
For nonconstant modulus signals ,the steady-state mean square error(MSE)of constant modulus algorithm(CMA) for blind equalization can not converge to zero and CMA can not achieve modulation classification .According to the construction method for CMA′s cost function ,a cosine cost function is defined and a new blind equalization algorithm based on it is proposed . Such cost function can take all the constellation points of BPSK ,M-PAM and M-QAM signals mapped to the origin of constellation diagram ,so the steady-state MSE of the proposed algorithm can converge to zero for both of constant modulus and nonconstant modulus signals .Furthermore ,for above signals the proposed algorithm has the modulation classification ability under the condition of multipath propagation .Theoretic analysis and computer simulation results demonstrate that the proposed algorithm offers high per-formance .关键词
盲均衡/多径衰落/调制识别/常数模算法/余弦代价函数Key words
blind equalization/multipath propagation/modulation classification/constant modulus algorithm/cosine cost function分类
信息技术与安全科学引用本文复制引用
饶伟..多径衰落环境中具有调制识别能力的盲均衡新算法[J].电子学报,2013,(7):1284-1289,6.基金项目
国家自然科学基金（No ．61102022）；江西省教育厅自然科学基金（No ．GJJ12635）；南昌工程学院青年基金 （）
