Adaptive Beamforming for Directional Bat Detection

Adaptive Beamforming for Directional Bat Detection - Twilight Travels

Adaptive beamforming favours sounds from a particular direction, while reducing sounds from other directions. The favoured direction is ...

Twilight Travels – Travels with my bat detector.

Adaptive beamforming favours sounds from a particular direction, while reducing sounds from other directions. The favoured direction is tracked dynamically ...

Adaptive beam-width control of echolocation sounds by CF–FM bats ...

Using a 31-channel microphone array system, we investigated how CF–FM bats adjust pulse direction and beam width according to prey position.

Simulating the Morphological Feasibility of Adaptive Beamforming in ...

We find that these bats could indeed relocate the center of their emission beam pattern using a phased array mechanism. Furthermore, we list two ways in which ...

Simulating the Morphological Feasibility of Adaptive Beamforming in ...

In this paper, we evaluate based on simulations, whether such an adaptive mechanism would be viable in FM bats given their specialized facial morphology. We ...

Adaptive Vocal Behavior Drives Perception by Echolocation in Bats

Echolocating bats control the directional aim of the sonar beam to inspect closely spaced objects. Bats adjust the frequency of sonar cries to sort echoes ...

Tongue-driven sonar beam steering by a lingual-echolocating fruit bat

The mechanism supporting this capability has remained a mystery. Here, we measured signals from free-flying Egyptian fruit bats and discovered a systematic ...

Echolocating bats emit a highly directional sonar sound beam in the ...

We determined the directionality of the bats' emitted signals from the pooled averaged data within each angle group. In addition, we checked the procedure by ...

High resolution acoustic measurement system and beam pattern ...

Measurements of the transmit beam patterns emitted by echolocating bats have previously been limited to cross-sectional planes or averaged ...

Adaptive Echolocation and Flight Behaviors in Bats Can Inspire ...

The standard BA has been further developed to incorporate a directional bat algorithm (dBA), which improves performance in different types ...

Echolocating bats emit a highly directional sonar sound beam in the ...

Myotis daubentonii emitted highly directional calls in the field. Directionality increased with frequency. At 40 kHz half-amplitude angle was 25°, decreasing to ...

Vespertilionid bats control the width of their biosonar sound beam ...

Therefore, a directional biosonar sound beam greatly increases detection probability in the forward direction and decreases off-axis echoes. However, high ...

Intensity and directionality of bat echolocation signals - Frontiers

Adaptive beam-width control of echolocation sounds by CF-FM ... Echolocating bats emit a highly directional sonar sound beam in the field.

BAT Algorithm based Beamforming for mmWave Massive MIMO ...

The major two shortcomings of Bat Algorithm are: 1. The original algorithm fails to depict the bats' self-adaptive capability in true sense which they have with ...

Sonar beam dynamics in leaf-nosed bats | Scientific Reports - Nature

Ultrasonic emissions of bats are directional and delimit the echo-acoustic space. Directionality is quantified by the aperture of the sonar ...

Intensity and directionality of bat echolocation signals. - Europe PMC

... directional beam (Jakobsen et al., 2013). Echolocation frequency is also ... Rather, it is an adaptive feature that broadens the echolocation beam ...

Design Analysis of Adaptive Beamforming in a MIMO-millimeter ...

Bat (I-BA) algorithm and robust adaptive beamformer in digital domain. ... Adaptive Processing of Linear Array for Target Detection Improve”, Int.

An Efficient Hybrid Beamforming Design for Massive MIMO Receive ...

It is based on methods of an improved bat algorithm (I-BA) and robust adaptive beamformers (RABs) in the digital domain. Since most of the RAB methods are ...

Convolutional neural network for 2D adaptive beamforming of ...

A deep-learning-based beamforming method based on a convolutional neural network trained with I/O pairs obtained from the optimum Wiener solution reveals ...

Frequency‐modulated diverse array transmit beamforming with bat ...

This study proposes bat metaheuristic algorithm-based synthesis technique to uncouple the FDA angle–range beamforming.