Mark C. Anderson, Kent L. Gee, J. Taggart Durrant, Alexandra Loubeau
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引用次数: 1
Abstract
Brigham Young University has been investigating best practices for recommendation to NASA in upcoming X-59 sonic thump measurements. This preparatory work has focused both on obtaining high-fidelity data and standardizing signal analysis techniques for sonic thumps. Included in the research are topics such as whether to use a ground-based or elevated microphone, how to use low-noise microphones and still recover high-fidelity data at low frequencies, and estimating the uncertainty in a given measurement due to local atmospheric turbulence effects. Also included is a study of windowing techniques, zero padding, and the removal of high-frequency ambient noise contamination.
杨百翰大学(Brigham Young University)一直在研究向NASA推荐即将到来的X-59声压测量的最佳实践。这项准备工作的重点是获得高保真数据和标准化的信号分析技术。研究的主题包括是使用地面麦克风还是高空麦克风,如何使用低噪声麦克风并在低频率下恢复高保真数据,以及估计由于局部大气湍流影响而在给定测量中的不确定性。还包括窗技术,零填充和去除高频环境噪声污染的研究。
期刊介绍:
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