| 基于小波核SVM的水声信道盲均衡算法 |
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| 引用本文： | 马时平,许悦雷,宋恒,毕笃彦.基于小波核SVM的水声信道盲均衡算法[J].微计算机信息,2010(12). |
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| 作者姓名： | 马时平 许悦雷 宋恒 毕笃彦 |
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| 作者单位： | 空军工程大学工程学院;海军航空工程学院电子信息工程系; |
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| 基金项目： | 中国博士后科学基金(20070421094) |
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| 摘 要： | 推导并提出了一种快速收敛的基于小波核支持向量机的恒模盲均衡器(WSVM-CMBE)。该方法以支持向量机为框架,利用信号的恒模特性构造代价函数,采用小波核函数,并自适应调整核函数中的伸缩因子。通过水声信道仿真实验,并与采用高斯核函数的支持向量机恒模盲均衡器(SVM-CMBE)进行比较,结果证明该方法提高了收敛速度。
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| 关 键 词： | 均衡器 盲均衡 水声信道 恒模 小波变换 |
Underwater Acoustic Channel Blind Equalizer Based on Wavelet Kernel SVM |
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| MA Shi-ping XU Yue-lei SONG Heng BI Du-yan.Underwater Acoustic Channel Blind Equalizer Based on Wavelet Kernel SVM[J].Control & Automation,2010(12). |
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| Authors: | MA Shi-ping XU Yue-lei SONG Heng BI Du-yan |
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| Affiliation: | MA Shi-ping XU Yue-lei SONG Heng BI Du-yan (The Engineering College of Air Force Engineering University,xi\'an,710038,China) (Department of Electronic Information Engineering,Naval Aeronautical , Astronautical University,Yantai 264001,China) |
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| Abstract: | This paper presents a wavelet kernel function support vector machine-based constant modulus blind equalizer(WSVM-CMBE) with convergence speediness capability.The method exploits signal constant modulus feature to constructs the cost function,adopted wavelet kernel function of which the flex parameter is self-adaptively adjusted.Simulation is carried out to compare it with support vector machine-based constant modulus blind equalizer with Gauss kernel function(SVM-CMBE) .The result shows the method has much ... |
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| Keywords: | equalizer blind equalization underwater acoustic channel constant modulus wavelet transform |
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