医用超声啁啾自适应反滤波

Proceedings of 17th International Conference of the Engineering in Medicine and Biology Society Pub Date : 1995-09-20 DOI:10.1109/IEMBS.1995.575278

V. Shyam, Huang Rao

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引用次数: 1

摘要

在医学超声成像中，轴向分辨率受到换能器带宽的限制。在用于成像的线性调频(chirp)脉冲编码技术中，可以通过从换能器频率响应中自适应导出的函数对啁啾幅度进行反向调制。换能器输出则成为具有更宽有效带宽的均衡啁啾。随后的脉冲压缩处理提高了分辨率。本文对这一概念进行了实验验证。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Adaptive inverse filtering with chirp for medical ultrasound

In medical ultrasound imaging, the axial resolution is limited by the bandwidth of the transducer. In a linear frequency modulation (chirp) pulse coding technique for imaging, it is possible to inverse modulate the chirp amplitude by a function adaptively derived from the transducer frequency response. The transducer output then becomes an equalized chirp with a wider effective bandwidth. Subsequent pulse compression processing consequently improves the resolution. This concept has been evaluated experimentally in this paper.

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Proceedings of 17th International Conference of the Engineering in Medicine and Biology Society

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