| 基于传声器阵列的近场宽带波束形成方法 |
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| 引用本文： | 翟永刚,吕明. 基于传声器阵列的近场宽带波束形成方法[J]. 电声技术, 2009, 33(1): 23-26 |
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| 作者姓名： | 翟永刚 吕明 |
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| 作者单位： | 电子科技大学电子工程学院,四川,成都,610054 |
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| 摘 要： | 提出了一种适合于近场宽带传声器阵列处理的空时子带波束形成新方法。该方法通过将一个空域子带阵列和时域子带多速率滤波器组合并来同时获得空域和时域两种子带系统的优点。计算机仿真比较了其与全带自适应波束形成方法的性能,结果表明该方法对干扰有较强的抑制能力,改善了宽带波束形成频域不一致问题,并且能够并行处理,为实际语音通信系统的应用提供了一种有利途径。
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| 关 键 词： | 嵌套传声器阵列 近场宽带波束形成 子带多速率滤波器组 干扰抑制 |
Approach of Near-field Wideband Beamforming Based on Microphone Arrays |
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| ZHAI Yong-gang,LV Ming. Approach of Near-field Wideband Beamforming Based on Microphone Arrays[J]. Audio Engineering, 2009, 33(1): 23-26 |
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| Authors: | ZHAI Yong-gang LV Ming |
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| Affiliation: | School of Electronic Engineering;UEST of China;Chengdu 610054;China |
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| Abstract: | A novel spatial-temporal subband beamforming structure for near field broadband microphone array processing is proposed.The proposed method incorporates a spatial subband array with temporal subband multirate filters and obtains the advantages of spatial and temporal subband systems.The subband beamfomring and fullband beamforming are compared via computer simulation.It is shown that the proposed subband beamfoming system obtains strong interference and noise suppression, reduces beampattern variations for ... |
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| Keywords: | nested microphone array near-field broadband beamforming subband multirate filters interference rejection |
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