| 一种快速收敛的符号回归常数模盲均衡算法 |
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| 引用本文： | 张艳萍,赵俊渭,李金明. 一种快速收敛的符号回归常数模盲均衡算法[J]. 应用声学, 2005, 24(2): 122-125 |
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| 作者姓名： | 张艳萍 赵俊渭 李金明 |
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| 作者单位： | 1. 西北工业大学声学工程研究所,西安,710072;山西师范大学,临汾,041004
2. 西北工业大学声学工程研究所,西安,710072 |
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| 基金项目： | 国家自然科学基金资助项目(60372086),国防科技重点实验室资助项目(514460401,03HK03002) |
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| 摘 要： | 为了加快符号回归常数模算法(SRCMA)的收敛速度,本文提出了一种适合于BPSK信号 的快速算法。该算法用新的误差函数替代SRCMA中的误差函数,新误差函数针对BPSK信号而 设计。新算法采用分数间隔均衡模型,有效地加快了SRCMA算法的收敛速度。水声信道仿真实验 表明,该算法性能稳定,收敛速度快,适用于快速变化信道的盲均衡和水声通信数据的实时恢复。
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| 关 键 词： | 水声信道 盲均衡 分数间隔 符号同归 快速收敛 |
A fast convergent signed regressor constant modulus algorithm for blind equalization |
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| ZHANG Yan-Ping,ZHAO Jun-Wei and LI Jin-Ming. A fast convergent signed regressor constant modulus algorithm for blind equalization[J]. Applied Acoustics(China), 2005, 24(2): 122-125 |
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| Authors: | ZHANG Yan-Ping ZHAO Jun-Wei LI Jin-Ming |
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| Abstract: | For increasing the speed of convergence of the signed regressor constant modulus algorithm (SRCMA), a fast SRCMA algorithm suitable for real BPSK signals is presented. The error function of SRCMA is replaced by a new one, which applies only to BPSK signals. Using fractionally-spaced equalization, the new algorithm efficiently promotes the convergence rate of SRCMA. Computer simulation proves that the new algorithm has advantage of robustness and fast convergence. The algorithm may be employed in blind equalization of rapidly changing channels and recovery of the underwater data transmission. |
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| Keywords: | Underwater sound channel Blind equalization Fractionally-spaced Signedregressor Fast convergence |
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