首页> 外国专利> Methods of signal processing to determine the sound speed as a function of frequency in a system to record sound of a geological formation.To determine the length of the geological formation as a function of frequency in a system to record acoustic geological formations, and,To determine the acoustic velocity and the dispersion of frequency of a geological formation

Methods of signal processing to determine the sound speed as a function of frequency in a system to record sound of a geological formation.To determine the length of the geological formation as a function of frequency in a system to record acoustic geological formations, and,To determine the acoustic velocity and the dispersion of frequency of a geological formation

机译:在系统中确定声速随频率变化的信号处理方法,以记录地质构造的声音。在系统中确定随频率变化的地质构造的长度,以记录声波地质构造,以及确定地质构造的声速和频率分散

摘要

Methods of signal processing to determine the sound speed as a function of frequency in a system to record sound of a geological formation.To determine the length of the geological formation as a function of frequency in a system to record acoustic geological formations, and,To determine the acoustic velocity and the dispersion of frequency of a geological formation. The report shows a technique of signal processing for recording acoustic devices.The method involves receiving a set of acoustic signals and convert those signals received in its representation of the field of frequ00b3u00eancia.The values of the domain representation of frequ00b3u00eancia along frequ00b3u00eancias constants are correlated to produce a correlation matrix.Eigenvetores and eigenvalores the correlation matrix are determined, and the eigenvetores corresponding to the signals of interest are removed to create a subspace.Then, a series of test vectors, the vectors of test are a series of values of slowness estimated, are applied to the vector subspace.If the test vector map or can be represented by the subspace, then the slowness estimated achieved in the test vector maps the system noise and is not the correct value of the formation.If, however, the test vector does not map the subspace, so the slow place in test vector is closer to the actual formation slowness.
机译:在系统中确定声速随频率变化的信号处理方法,以记录地质构造的声音。在系统中确定随频率变化的地质构造的长度,以记录声波地质构造,以及确定声速和地质构造的频散。该报告显示了用于记录声学设备的信号处理技术,该方法包括接收一组声学信号并将其接收的信号转换为freq u00b3 u00eancia字段的表示形式.freq u00b3的域表示值将沿频率的 u00eancia常数进行相关以生成相关矩阵,确定特征向量和特征值相关矩阵,并删除与感兴趣信号相对应的特征向量以创建子空间,然后,通过一系列测试向量测试向量是一系列估计的慢度值,应用于向量子空间。如果测试向量图或可以由子空间表示,则测试向量中实现的慢度估计会映射系统噪声,而不是但是,如果测试向量未映射子空间,则测试向量中的慢速位置将更接近实际的地层慢度。

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