14 papers · ranked by Valyu relevance
Dieter Vanderelst, Inga Geipel, Herbert Peremans
The common big-eared bat (Micronycteris microtis) gleans its prey directly from plant surfaces. Previous experiments have shown that this bat exploits the specular reflection effect to discriminate between occupied and empty leaves. Using this effect requires the bat to position itself such that it can ensonify the…
Mahdieh Maazalahi, Soodeh Hosseini, Heitor Soares Ramos Filho
In this paper, a dynamic epidemic model of botnet attack propagation in scale-free networks is introduced based on the epidemic model. The proposed attack propagation model is based on the Susceptible-Exposure-Infected-Improved-Vaccinated-Recovery (SEIRVS) epidemic model. Here, an Intrusion Detection System (IDS) for…
Ravi Umadi
Water-surface foraging is a rare strategy among echolocating bats, requiring precise coordination between sonar emission, echo timing, and flight geometry. Here, I develop a geometric–responsivity framework to explain how bats foraging over water regulate call timing under these constraints. The model links beam…
Wouter Jansen, Jan Steckel
—The deployment of in-air acoustic sensors for industrial monitoring and autonomous robotics has grown significantly, often drawing inspiration from biological echolocation. However, developing and validating these systems in existing simulation frameworks remains challenging due to the computational cost of simulating…
Wu-Jung Lee, John R. Buck, Peter L. Tyack
Echolocation is a closed-loop active sensing modality in which animals not only choose how they move to acquire information, but also actively modulate incoming sensory (echo) information by shaping the acoustic signals they emit to probe the environment. While many models describe how echolocating animals react to…
Sean C. Cadigan, Nathon A. Smith, Te K. Jones, Melville J. Wohlgemuth
Locating, tracking and intercepting objects is a fundamental behavior for many organisms. For instance, predators must track and capture erratically moving prey for their survival. Using the echolocating bat as a model species, we investigated how short-term changes in target motion predictability affect longer-term…
Sefawe, Maatla, Ganti, Sravya + 8 more
Effective monitoring of mobile animal populations is crucial for ecological research, wildlife management, and agricultural applications. Monitoring of bats specifically can help understand the spread of disease as well as shine light on bat migration patterns, population dynamics, and the impacts of environmental…
Mingxin Zhang, Weihao Qi, Bo Han, Fujie Han + 4 more
Title: Simple Summary Most bats use echolocation to navigate and hunt. Research on energy consumption and regulatory strategies during vocalization helps reveal how animals manage energy to achieve an optimal balance among different behavioral investments. This balance improves animals’ survival and reproductive…
Shida Xu, Jingqi Jiang, Jonatan Scharff Willners, Sen Wang
— Underwater sonar imaging plays a crucial role in various applications, including autonomous navigation in murky water, marine archaeology, and environmental monitoring. However, the unique characteristics of sonar images, such as complex noise patterns and the lack of elevation information, pose significant…
Eighdi Aung, Nicole Abaid
Bats are fast fliers with great maneuverability. Many species sense and communicate through echolocation, relying on acoustic signals in the environment. Bats also form large colonies, which necessitates that they fly in groups. When the group size increases or obstacles are in their flight paths, the acoustic space…
Lingpeng Chen, Tang, Jiakun, Apple Pui-Yi Chui + 2 more
— Accurate 3D reconstruction in visually-degraded underwater environments remains a formidable challenge. Single-modality approaches are insufficient: vision-based methods fail due to poor visibility and geometric constraints, while sonar is crippled by inherent elevation ambiguity and low resolution. Consequently…
Chinmay Burgul, Yewei Huang, Michalis Chatzispyrou, Ioannis Rekleitis + 2 more
— In the past decade, the adoption of compact 3D range sensors, such as LiDARs, has driven the developments of robust state-estimation pipelines, making them a standard sensor for aerial, ground, and space autonomy. Unfortunately, poor propagation of electromagnetic waves underwater, has limited the…
Tomasz Praczyk, Leszek Pietrukaniec, Maksymilian Wrzesień, Maciej Szymkowiak + 1 more
This paper addresses the problem of controlling autonomous underwater vehicles (AUVs) operating in a swarm under realistic underwater conditions characterised by inaccurate navigation, limited acoustic communication, and noisy sonar observations. A novel Trail Sonar-Based Algorithm (TSBA) is proposed for…
Julia K. Vrtilek, Haley J. Gmutza, Sydney Decker, Gerald G. Carter
Group-living animals often coordinate their behavior using “contact calls”. Identifying the function of these calls requires testing whether they are intended for any group member or targeted to specific preferred associates. If contact calling is used to coordinate with preferred associates, then higher rates of…