| 自适应算法在干扰抵消器应用中的比较研究 |
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| 引用本文： | 任晓亚,宋爱民.自适应算法在干扰抵消器应用中的比较研究[J].通信技术,2007,40(12):48-50. |
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| 作者姓名： | 任晓亚 宋爱民 |
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| 作者单位： | 空军工程大学,电讯工程学院,陕西,西安,710077 |
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| 摘 要： | 文中介绍了自适应滤波算法的原理和干扰抵消器工作原理，并将LMS算法、NLMS算法和变步长LMS算法分别应用在了干扰抵消器中进行了仿真。仿真的结果表明，三种自适应算法运用到了干扰抵消器中，都可以很好地滤除干扰，提取有用信号。其中运用了变步长LMS算法的干扰抵消器无论在收敛速度和滤波性能上，都要强于其他两种算法。
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| 关 键 词： | 自适应干扰抵消 干扰抵消器 自适应滤波算法 仿真 |
| 文章编号： | 1002-0802（2007）12-0048-03 |
| 收稿时间： | 2007-09-17 |
| 修稿时间： | 2007年9月17日 |
Comparison of Adaptive Filtering Algorithms Used in Interference Cancellation System |
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| REN Xiao-ya,SONG Ai-min.Comparison of Adaptive Filtering Algorithms Used in Interference Cancellation System[J].Communications Technology,2007,40(12):48-50. |
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| Authors: | REN Xiao-ya SONG Ai-min |
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| Abstract: | In this paper, the theory of Adaptive Filtering Algorithms and the interference cancellation system is introduced, and the comparisons on applications of LMS algorithms, NLMS algorithms and variable step-size LMS algorithms in the interference cancellation system are described. The simulation results show that all of these adaptive algorithms can cancel interference and obtain the desired singnal. The interference cancellation system using the variable step-size LMS algorithms is faster in convergence speed and much better in the performance of fitering. |
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| Keywords: | adaptive interference cancellation interference cancellation system adaptive filtering algorithms simulation |
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