Improved concurrent constant modulus algorithm and soft decision directed algorithm based on fractionally spaced equalization
In digital communications, the constant modulus algorithm (CMA) for blind channel equalization has some disadvantages such as slow convergence speed and phase rotation. Therefore, an improved CMA+SDD (soft decision directed) algorithm based on FSE is proposed. The algorithm minimizes a modified error function and the learning-rate is modulated by the received sequences. The improved CMA+SDD blind equalizer is shown to have faster convergence speed,biggish improved steady-state equalization performance, and no phase rotation compared with the existing CMA blind equalizer.
Zhensu Lu Mingqiu Han Tongfeng Zhang Juan Du Shi Huang
School of Information Science and Engineering, Lanzhou University South Tianshui Road 222#,730000,Lanzhou, Gansu, China
国际会议
武汉
英文
619-622
2005-09-23（万方平台首次上网日期，不代表论文的发表时间）