| 远场-近场折中的波束形成器设计及SOPC实现 |
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| 引用本文： | 周尧,高天德,郭秀焱,王向辉. 远场-近场折中的波束形成器设计及SOPC实现[J]. 现代电子技术, 2010, 33(15): 107-110 |
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| 作者姓名： | 周尧 高天德 郭秀焱 王向辉 |
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| 作者单位： | 西北工业大学,航海学院,陕西,西安,710072 |
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| 摘 要： | 针对语音信号处理中传统的固定波束形成器,需要给定远场声源或近场声源,导致应用场合受到局限的问题,提出了用最小平方方法实现远场-近场折中的固定波束形成器设计,给出了系统在SOPC上的实现过程,验证了该方案具有运算简单,应用广泛而且失真度小的特性。
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| 关 键 词： | 麦克风阵列 语音增强 波束形成 SOPC FPGA |
Design of Mixed Near-Filed and Far-Filed Beamformer and Its Application on SOPC |
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| ZHOU Yao,GAO Tian-de,GUO Xiu-yan,WANG Xiang-hui. Design of Mixed Near-Filed and Far-Filed Beamformer and Its Application on SOPC[J]. Modern Electronic Technique, 2010, 33(15): 107-110 |
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| Authors: | ZHOU Yao GAO Tian-de GUO Xiu-yan WANG Xiang-hui |
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| Affiliation: | (College of Marine,Northwestern Polytechnic University,Xi ’an 710072,China) |
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| Abstract: | Since the near-filed or far-filed sound source has to be configured before the conventional fixed beamformer performs the speech signal processing,a least squares method is proposed to implement the design of a fixed beamformer with the near-filed and far-filed compromise.The implementation procedure of the system on SOPC is presented.It proves that the approach has the characteristics of simple arithmetic operation and less speech distortion. |
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| Keywords: | SOPC FPGA |
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