Barker coded excitation with linear frequency modulated carrier for ultrasonic imaging
Barker coded excitation with linear frequency modulated carrier for ultrasonic imaging
复制标题
用于超声成像的线性调频载波巴克编码激励
DOI：
10.1016/j.bspc.2014.06.004
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发表时间：
2014-09-01
影响因子：
5.1
通讯作者：
Feng, Yizhi
中科院分区：
文献类型：
--
作者：
Fu, Juan;Wei, Gang;Feng, Yizhi
提出了一种基于线性调频（LFM）载波的Barker编码激励（简称LFM-Barker），用于提高超声成像的轴向分辨率和信噪比。LFM-Barker编码激励有两个独立的参数：一个是LFM载波的带宽，另一个是Barker码的码片持续时间。为了提高轴向分辨率，增加LEM载波带宽;为了提高信噪比，增加巴克码的码片持续时间。在这项研究中，线性调频脉冲与适当的（
A new Barker coded excitation using linear frequency modulated (LFM) carrier (called LFM-Barker) is proposed for improving ultrasound imaging quality in terms of axial resolution and signal-to-noise ratio (SNR). The LFM-Barker coded excitation has two independent parameters: one is the bandwidth of LFM carrier, and the other is the chip duration of Barker code. To improve the axial resolution, increase the bandwidth of LEM carrier; and to improve the SNR, increase the chip duration of Barker code. In this study, a LFM pulse with proper (