38 citations · 41 across the 9 of their papers we have counts for
10 papers
Underwater Acoustic Channel Library
Zhengnan Li, Mandar Chitre, Diego A. Cuji +4
The development of communication systems critically depends on realistic channel models, yet there are no widely accepted standards in the underwater acoustic communications commun…
Time-frequency localization of bird calls in dense soundscapes
Simen Hexeberg, Fanghui Tong, Hari Vishnu +1
Passive acoustic monitoring enables large-scale wildlife observation. Most bioacoustic classifiers predict species presence in a time window without localizing vocalizations precis…
Diffusion-based Surrogate Model for Time-varying Underwater Acoustic Channels
Kexin Li, Mandar Chitre
Accurate modeling of time-varying underwater acoustic channels is essential for the design, evaluation, and deployment of reliable underwater communication systems. Conventional ph…
Passive Acoustic-based Composite Indices for Reef Health Monitoring in Noisy Tropical waters
Hari Vishnu, Yuen Min Too, Mandar Chitre +3
Passive acoustic monitoring offers the potential to enable long-term, spatially extensive assessments of coral reefs. To explore this approach, we deployed underwater acoustic reco…
Localized time-frequency representation learning for bioacoustic classification in complex soundscapes
Simen Hexeberg, Mandar Chitre, Matthias Hoffmann-Kuhnt +1
Prevailing bioacoustic classifiers assign species labels to fixed time-frequency windows rather than to individual vocalizations. When multiple vocalizations occur within the same…
Image Compression Using Novel View Synthesis Priors
Luyuan Peng, Mandar Chitre, Hari Vishnu +4
Real-time visual feedback is essential for tetherless control of remotely operated vehicles, particularly during inspection and manipulation tasks. Though acoustic communication is…
Pose Estimation from Camera Images for Underwater Inspection
Luyuan Peng, Hari Vishnu, Mandar Chitre +4
High-precision localization is pivotal in underwater reinspection missions. Traditional localization methods like inertial navigation systems, Doppler velocity loggers, and acousti…
Improved Image-based Pose Regressor Models for Underwater Environments
Luyuan Peng, Hari Vishnu, Mandar Chitre +3
We investigate the performance of image-based pose regressor models in underwater environments for relocalization. Leveraging PoseNet and PoseLSTM, we regress a 6-degree-of-freedom…
Data-aided Underwater Acoustic Ray Propagation Modeling
Kexin Li, Mandar Chitre
Acoustic propagation models are widely used in numerous oceanic and other underwater applications. Most conventional models are approximate solutions of the acoustic wave equation,…
New Metrics Between Rational Spectra and their Connection to Optimal Transport
Fredrik Bagge Carlson, Mandar Chitre
We propose a series of metrics between pairs of signals, linear systems or rational spectra, based on optimal transport and linear-systems theory. The metrics operate on the locati…