P1G-3 Evaluation of a Bio-Inspired Range finding Algorithm (BIRA)
P1G-3 Evaluation of a Bio-Inspired Range finding Algorithm (BIRA)
复制标题
P1G-3 仿生测距算法 (BIRA) 的评估
DOI：
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发表时间：
2006
期刊：
影响因子：
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通讯作者：
J. Soraghan
中科院分区：
文献类型：
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作者：
F. Devaud;G. Hayward;J. Soraghan
蝙蝠在黑暗中利用复杂的声波发射来确定方位的能力长期以来一直吸引着科学家。众所周知，一些蝙蝠拥有极其复杂的回声定位能力，利用啁啾序列与自适应天线系统相结合，从而在3-D空间中实现极高的分辨率。一个特别有趣的方面是，蝙蝠似乎可以分辨和定位散射尺寸小于发射信号波长的目标。它们还被认为通过分辨沿距离轴沿着的多个紧密反射点来识别目标形状。如果利用得当，这种技术在超声成像方面可能具有巨大的潜力。蝙蝠的基本过程的模型已经在文献中，使用各种方法，主要面向蝙蝠如何定位和捕捉飞行昆虫的研究。目前的工作涉及的测距算法名为BIRA（生物启发测距算法），来自已知的蝙蝠听觉模型的研究的研究。它研究了该算法在分辨率，对噪声的鲁棒性和带宽要求方面的性能。该算法在实际的超声系统中的实施方面表现不佳。这代表了蝙蝠行为方面的一个有趣的发现，并提供了一个迹象，表明昆虫狩猎蝙蝠可能已经进化到使用完全不同的方法来捕获猎物，而不是目前在文献中提出的方法
The ability of bats to orientate in the dark by employing complex sonic emissions has long held the fascination of scientists. It is known that some bats possess extremely sophisticated echo location capabilities, utilising chirp sequencing allied with an adaptive antenna system that enables extremely high resolution in 3-D space. One particularly interesting aspect is that bats appear to resolve and locate targets with scattering dimensions less than the wavelength of the emitted signals. They are also believed to identify the target shape by resolving multiple and closely reflecting points along the range axis. Properly harnessed, such techniques could possess significant potential for ultrasonic imaging. Modelling of the underlying processes of the bat has been covered in the literature, using a variety of approaches and geared mainly towards the study of how bats locate and capture flying insects. The current work involves the study of a ranging algorithm named BIRA (Bio-Inspired Range finding Algorithm), derived from the study of known bat auditory models. It investigates the performance of the algorithm in terms of resolution, robustness to noise and bandwidth requirement. The algorithm is shown to perform poorly in terms of implementation in practical ultrasonic systems. This represents an interesting finding in terms of bat behaviour and provides an indication that insect hunting bats may have evolved to use quite different methods for prey capture than those currently suggested in the literature
影响因子：
2.4
作者：
SAILLANT, PA;SIMMONS, JA;DEAR, SP
通讯作者：
DEAR, SP