SNR comparisons of beamforming strategies.
SNR comparisons of beamforming strategies.
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波束成形策略的 SNR 比较。
DOI：
10.1109/tuffc.2007.346
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发表时间：
2007
期刊：
影响因子：
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通讯作者：
Insana,MichaelF
中科院分区：
文献类型：
--
作者：
Liu,Jie;Kim,Kang-Sik;Insana,MichaelF
本文定义了脉冲回波系统的回波信噪比（eSNR），该系统适应频移变化的脉冲响应、时空编码和各种波束形成器的影响。使用点目标或随机散射介质的测量技术可以通过 eSNR 在各种实验条件下相互关联。还通过将空间匹配滤波器 (SMF) 波束形成器与传统动态接收聚焦方法进行比较来说明 eSNR 定义，以根据分辨率和灵敏度评估性能。提出了封闭式表达式，用于预测 SMF 方法相对于其他波束形成器的 eSNR 增益
This paper defines the echo signal-to-noise ratio (eSNR) for pulse-echo systems that adapts to the effects of shift-varying impulse responses, spatiotemporal coding, and various beamformers. Measurement techniques using point targets or random scattering media can be interrelated for a broad range of experimental conditions through the eSNR. The eSNR definitions are also illustrated by comparing a spatial matched filter (SMF) beamformer to conventional dynamic receive focusing methods to evaluate performance based on resolution arid sensitivity. Closed-form expressions are presented that predict eSNR gains from SMF approaches relative to other beamformers