蝙蝠启发的多谐波波形

A. Balleri, H. Griffiths, M. Holderied, Chris Baker
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引用次数: 4

摘要

蝙蝠在最具挑战性的环境中实现了卓越的目标检测和选择性能。这些活动主要是通过回声定位进行的,即通过以超声波频率发射脉冲并处理来自目标的回声。因为它们依靠高水平的表现来生存,作为自然选择的结果,人们相信它们的进化是为了优化这些能力。回声定位呼叫非常复杂,多样,通常由许多谐波成分组成。如果进化导致了多谐波波形,那么这样做可能会带来好处。本文模拟了多谐波波形,并通过对其模糊函数的范围分析来找出其优缺点。讨论了有关雷达和声纳情况的结果。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Bat-inspired multi-harmonic waveforms
Bats achieve remarkable target detection and selection performance in the most challenging environments. These activities are carried out mainly by echolocation, i.e. by transmitting pulses at ultrasound frequencies and processing the echoes from targets. Because they have relied on high level performance for survival, as a consequence of natural selection, it is believed that they have evolved in order to optimise these capabilities. Echolocation calls are very sophisticated, diverse, and commonly composed of a number of harmonic components. If evolution has resulted in multi-harmonic waveforms there might be advantages deriving by doing so. In this paper we simulate multi-harmonics waveforms and exploit advantages or disadvantages by a range analysis of their ambiguity functions. Results are discussed in relation to the radar and sonar case.
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