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Natalie S. Grigorieva, Fiodor F. Legusha, Dmitry V. Nikushchenko and Kirill S. Safronov
A numerically efficient technique is presented for computing the backscattered fields from two spherical targets embedded in an underwater sediment. The bottom is assumed to be a homogeneous liquid attenuating half-space. The transmitter/receiver is loca...
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Danju Lv, Jiali Zi, Xin Huang, Mingyuan Gao, Rui Xi, Wei Li and Ziqian Wang
Plant growth is closely related to the structure of its stem. The ultrasonic echo signal of the plant stem carries much information on the stem structure, providing an effective means for analyzing stem structure characteristics. In this paper, we propos...
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Ziqi Peng, Hongzi Bai, Tatsuo Shiina, Jianglong Deng, Bei Liu and Xian Zhang
LED (light-emitting diode)-lidar (light detection and ranging) has gradually been focused on by researchers because of its characteristics of low power, high stability, and safety to human eyes. However, LED-lidar systems are easily disturbed by backgrou...
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Chang Liu, Binzhen Zhang, Chenyang Xue, Guojun Zhang, Wendong Zhang and Yijun Cheng
In order to better detect information about a mass in breast tissue, an ultrasound tomography algorithm based on adaptive time gain compensation (TGC) was designed. Field II was utilized to automatically evaluate the phantom attenuation coefficient and c...
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Edo Bagus Prastika, Agus Indra Gunawan, Bima Sena Bayu Dewantara, Naohiro Hozumi, Chandra Edy Prianto
Pág. 105 - 123
Ultrasonic technology has already been used for many applications. Most of them are mainly used for object measurement. Some techniques have been widely applied to particular measurement by utilizing a very specific component. In this research, the previ...
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Xuehua Li, Chuanzhi Wang, Zhengxia Qin, Jianxin He, Fang Liu and Qing Sun
Velocity ambiguity is one of the main challenges in accurately measuring velocity for the future Geostationary Spaceborne Doppler Weather Radar (GSDWR) due to its short wavelength. The aim of this work was to provide a novel velocity dealiasing method fo...
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Xuehua Li, Jianxin He, Chuanzhi Wang, Shunxian Tang and Xiaoyu Hou
Surface clutter interference will be one of the important problems for the future of geostationary spaceborne weather radar (GSWR). The aim of this work is to provide some numerical analyses on surface clutter interference and part of the performance eva...
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