空间飞行器内声源定位算法研究
发布时间：2018-07-29 14:53
【摘要】：空间飞行器内空间狭小,存在较大的语音混响现像,飞行器内乘员不带专用耳戴进行语音通话时,混响信号影响通话质量。利用声源方位的信号进行语音增强的方法可以抑制混响的干扰,获得较好的通话效果。常用的声源定位算法由于受混响的影响,很难对乘员的语音进行有效地定位。通过研究空间飞行器的语音传输特性,提出了基于相关系数波束形成算法,该算法利用波形的相似性来抑制混响的干扰。实验证明:算法具有较好的声源定位效果,为语音增强提供声源方位参数。
[Abstract]:There is a large phenomenon of voice reverberation in the space vehicle, and the reverberation signal affects the quality of the communication when the occupant of the vehicle does not have a special ear to carry on the voice call. The method of speech enhancement based on acoustic source azimuth signal can suppress reverberation interference and obtain better communication effect. Because of the reverberation, the commonly used acoustic source localization algorithms are difficult to locate the occupant's speech effectively. A correlation coefficient based beamforming algorithm is proposed to suppress reverberation interference by studying the speech transmission characteristics of space vehicles. Experimental results show that the algorithm has a good effect of sound source location and provides sound source azimuth parameters for speech enhancement.
【作者单位】： 兰州空间技术物理研究所;
【基金】：中国载人航天工程重大专项(RWZY640601) 国家自然科学基金(61125101)
【分类号】：V443
，
本文编号：2153032
[Abstract]:There is a large phenomenon of voice reverberation in the space vehicle, and the reverberation signal affects the quality of the communication when the occupant of the vehicle does not have a special ear to carry on the voice call. The method of speech enhancement based on acoustic source azimuth signal can suppress reverberation interference and obtain better communication effect. Because of the reverberation, the commonly used acoustic source localization algorithms are difficult to locate the occupant's speech effectively. A correlation coefficient based beamforming algorithm is proposed to suppress reverberation interference by studying the speech transmission characteristics of space vehicles. Experimental results show that the algorithm has a good effect of sound source location and provides sound source azimuth parameters for speech enhancement.
【作者单位】： 兰州空间技术物理研究所;
【基金】：中国载人航天工程重大专项(RWZY640601) 国家自然科学基金(61125101)
【分类号】：V443
，
本文编号：2153032
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