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Measurement and estimation of free field to eardrumtransfer function for virtual acoustic space research 被引量:1
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作者 WU Zhenyang (Department of Radio Engineering, Southeast University Nanjing 210018)CHEN Jiashu and Richard A. Reale(Department of Neurophysiology, University of Wisconsin-Madison)Received 《Chinese Journal of Acoustics》 1997年第2期105-114,共10页
Free field to Eardrum Thansfer Function (FETF) is one of the major factors influencing the identification of the sound source direction. FETF can be employed to generate a Virtual Acoustic Space (VAS) by computer and ... Free field to Eardrum Thansfer Function (FETF) is one of the major factors influencing the identification of the sound source direction. FETF can be employed to generate a Virtual Acoustic Space (VAS) by computer and other equlpment. In this paper the methods to improve the measurement and estimation of FETF are approached. Least-mean-squares (LMS)method is much better than empirical FFT method. This paper also gives a sample description of excitation signals for measuring the impulse response of FETF. 展开更多
关键词 Measurement and estimation of free field to eardrumtransfer function for virtual acoustic space research free
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随机声载荷基于相空间重构的GMDH方法预测
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作者 张阁玉 吴兆奇 吴晓明 《沈阳航空工业学院学报》 2010年第1期12-13,共2页
把数据处理的组合法(GMDH)与相空间重构理论相结合,产生基于相空间重构的GMDH方法应用于随机声载荷的状态预测中。根据此法所建立的模式系统具有较好的客观性,预测结果与时间序列自回归模型ARMA(17,16)相比,预报均方误差有明显改进。
关键词 随机声载荷 相空间重构 数据处理的组合法 嵌入维数 优选法
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