Kramers-Kronig analysis of attenuation and dispersion in trabecular bone.
Kramers-Kronig analysis of attenuation and dispersion in trabecular bone.
复制标题
骨小梁中的衰减和色散的 Kramers-Kronig 分析。
DOI：
10.1121/1.2126934
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发表时间：
2005
期刊：
影响因子：
--
通讯作者：
B. Hoffmeister
中科院分区：
文献类型：
--
作者：
K. Waters;B. Hoffmeister
本文应用Kramers-Kronig频散关系的有限带宽形式，对牛胫骨松质骨标本的超声衰减和频散特性进行了体外测量。Kramers-Kronig分析只利用实验测量的特性，避免了超出已知带宽的超声特性的外推。对未知带宽上的部分Kramers-Kronig积分的补偿部分是通过减法实现的，其中减法频率作为一个可调参数。实验测量的色散与Kramers-Kronig重建的色散之间有很好的一致性。受限带宽方法改进了Kramers-Kronig关系的其他形式，并可能进一步深入了解超声波如何与骨小梁相互作用。
A restricted-bandwidth form of the Kramers-Kronig dispersion relations is applied to in vitro measurements of ultrasonic attenuation and dispersion properties of trabecular bone specimens from bovine tibia. The Kramers-Kronig analysis utilizes only experimentally measured properties and avoids extrapolation of ultrasonic properties beyond the known bandwidth. Compensation for the portions of the Kramers-Kronig integrals over the unknown bandwidth is partially achieved by the method of subtractions, where a subtraction frequency acts as an adjustable parameter. Good agreement is found between experimentally measured and Kramers-Kronig reconstructed dispersions. The restricted-bandwidth approach improves upon other forms of the Kramers-Kronig relations and may provide further insight into how ultrasound interacts with trabecular bone.
利用有限带宽 Kramers-Kronig 关系确定声群速度和衰减频率导数的因果关系。
DOI：
10.1103/physreve.72.016604
发表时间：
2005
期刊：
Physical review. E, Statistical, nonlinear, and soft matter physics
影响因子：
--
作者：
Mobley,Joel;Waters,KendallR;Miller,JamesG
通讯作者：
Miller,JamesG