| 基于自适应基追踪去噪的含噪语音压缩感知 |
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| 引用本文： | 孙林慧,杨震.基于自适应基追踪去噪的含噪语音压缩感知[J].南京邮电大学学报(自然科学版),2011,31(5):1-6. |
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| 作者姓名： | 孙林慧 杨震 |
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| 作者单位： | 南京邮电大学通信与信息工程学院,江苏南京,210003 |
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| 基金项目： | 国家自然科学基金(60971129,60902065); 南京邮电大学青蓝计划(NY210031); 江苏省普通高校研究生科研创新计划(CX10B_191Z); 江苏省博士后科学基金(1101022B)资助项目 |
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| 摘 要： | 针对含白噪语音信号压缩采样后采用基追踪方法重构性能差的问题,提出了自适应基追踪去噪方法,该方法根据原含噪信号的信噪比自适应选择重构最佳参数,从而在重构语音的同时提高原信号信噪比。把该方法运用到含噪语音压缩感知中,对重构语音进行了主客观评价,并分析了不同压缩比下的重构性能。仿真结果显示:本文方法既实现了压缩采样,又在重构信号时实现了语音增强,优于基追踪重构方法
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| 关 键 词： | 压缩感知 语音压缩与重构 语音增强 自适应基追踪去噪 基追踪 |
Compressed Sensing of Noisy Speech Signal Based on Adaptive Basis Pursuit De-noising |
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| SUN Lin-hui,YANG Zhen.Compressed Sensing of Noisy Speech Signal Based on Adaptive Basis Pursuit De-noising[J].Journal of Nanjing University of Posts and Telecommunications,2011,31(5):1-6. |
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| Authors: | SUN Lin-hui YANG Zhen |
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| Institution: | SUN Lin-hui,YANG Zhen( College of Telecommunications & Information Engineering,Nanjing University of Posts and Telecommunications,Nanjing 210003,China) |
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| Abstract: | An adaptive basis pursuit de-noising method is proposed for compressed sensing of speech degraded by white Gaussian noise interference.This method adaptively selects the prime regularization parameter according to the SNR of original speech signal and enhancement is achieved as it is applied to noisy speech compression and reconstruction.The reconstructed speech signal via adaptive basis pursuit de-noising is evaluated by the objective and subjective evaluation.It is demonstrated that the performance of rec... |
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| Keywords: | compressed sensing speech compression and reconstruction speech enhancement adaptive basis pursuit de-noising basis pursuit |
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