Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Echo01:06

Echo

881
The human ear cannot distinguish between two sources of sound if they happen to reach within a specific time interval, typically 0.1 seconds apart. More than this, and they are perceived as separate sources.
Imagine the sound is reflected back to the ears. Assuming that the source is very close to the human, the difference between hearing the two sounds—the emitted sound and the reflected sound—may be more than the minimum time for perceiving distinct sounds. If this is the case,...
881
Uniform Depth Channel Flow: Problem Solving01:18

Uniform Depth Channel Flow: Problem Solving

426
To calculate the flow rate for a trapezoidal channel, first, identify the bottom width, side slope, and flow depth of the channel. The cross-sectional area (A) corresponding to the depth of flow (y), channel bottom width (B), and side slope (θ) is determined by:Next, calculate the wetted perimeter, which includes the bottom width and the sloped side lengths in contact with the water. Using the values of the cross-sectional area and the wetted perimeter, determine the hydraulic radius by...
426
Electronic Distance Measuring Instruments01:30

Electronic Distance Measuring Instruments

458
Electronic Distance Measuring Instruments (EDMs) are essential tools in modern surveying, offering precise distance measurements by emitting electromagnetic signals and calculating the time required for these signals to travel to a target and return. Two primary types of signals are used in EDMs — light waves and microwaves — each suited to specific environmental and distance requirements. Light-wave-based EDMs utilize either infrared or laser light, providing high accuracy over...
458
Typical Model Studies01:30

Typical Model Studies

616
Fluid mechanics model studies often utilize scaled-down systems to predict fluid behavior in full-scale environments, such as river flows, dam spillways, and structures interacting with open surfaces. Maintaining Froude number similarity in river models is crucial, as it replicates surface flow features like wave patterns and velocities.
616
Uniform Depth Channel Flow01:27

Uniform Depth Channel Flow

525
Uniform depth channel flow keeps fluid depth consistent along channels such as irrigation canals. In natural channels, such as rivers, approximate uniform flow is often assumed. This condition occurs when the channel’s bottom slope matches the energy slope, balancing potential energy lost from gravity with head loss due to shear stress. This balance prevents depth changes along the channel length, resulting in a steady, uniform flow.Uniform flow in open channels with a constant cross-section...
525
Buoyancy and Stability for Submerged and Floating Bodies01:11

Buoyancy and Stability for Submerged and Floating Bodies

2.5K
In fluid mechanics, buoyancy and stability are key concepts for understanding the behavior of submerged and floating bodies. When a stationary body is fully or partially submerged in a fluid, the fluid exerts a force on the body known as the buoyant force. This force acts vertically upward through a point called the center of buoyancy, which is the center of the displaced fluid volume. According to Archimedes' principle, the magnitude of the buoyant force is equal to the weight of the fluid...
2.5K

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Physics-based and data-driven joint approach for low-frequency underwater acoustic field predictiona).

The Journal of the Acoustical Society of America·2026
Same author

Optimizing partial receiver operating characteristic curve via curriculum learning and Neyman-Pearson criterion for robust underwater acoustic target detection.

The Journal of the Acoustical Society of America·2026
Same author

Angle-distance decomposition based on deep learning for active sonar detection.

The Journal of the Acoustical Society of America·2025
Same author

A Robust Bilayer Superhydrophobic Coating Based on Graphene Oxide with Integrated Photothermal Effects for Efficient Anti-/Deicing and Durability Applications.

Langmuir : the ACS journal of surfaces and colloids·2025
Same author

Durable Superhydrophobic Composite Coating Based on Hydrangea-like SiO<sub>2</sub> Nanoparticles with Excellent Performance in Anticorrosion, Drag Reduction, and Antifouling.

Materials (Basel, Switzerland)·2025
Same author

Multi-directional decision feedback equalization for orthogonal time frequency space underwater acoustic communication system.

The Journal of the Acoustical Society of America·2025
Same journal

Sibilant differentiation before and after tongue cancer surgery: Acoustics, kinematics and the role of sensorimotor controla).

The Journal of the Acoustical Society of America·2026
Same journal

BioNet-A: Ultrasonic echo representation network for target discrimination using active SONAR.

The Journal of the Acoustical Society of America·2026
Same journal

Empty soft-drink cans and mass-loaded rods: Analogous homework problems from acoustic and mechanical domains.

The Journal of the Acoustical Society of America·2026
Same journal

Erratum: Statistical wave field theory: Anisotropic wave fields under Neumann's boundary condition [J. Acoust. Soc. Am. 159(3), 2265-2280 (2026)].

The Journal of the Acoustical Society of America·2026
Same journal

On the modification of tip leakage noise sources by porous treatment.

The Journal of the Acoustical Society of America·2026
Same journal

An educational opportunity: Acoustics in an empty room.

The Journal of the Acoustical Society of America·2026
See all related articles

Related Experiment Video

Updated: Jan 14, 2026

Tracking Infiltration Front Depth Using Time-lapse Multi-offset Gathers Collected with Array Antenna Ground Penetrating Radar
07:14

Tracking Infiltration Front Depth Using Time-lapse Multi-offset Gathers Collected with Array Antenna Ground Penetrating Radar

Published on: May 1, 2018

8.2K

Target echo interference characteristic in the deep water: Modeling and application in depth estimation.

Yue Guo1,2, Kunde Yang1,2,3, Rui Duan1,2

  • 1School of Marine Science and Technology, Northwestern Polytechnical University, Xi'an 710072, Shaanxi, China.

The Journal of the Acoustical Society of America
|October 24, 2025
PubMed
Summary
This summary is machine-generated.

This study introduces a novel method for accurate underwater target depth estimation, overcoming challenges from complex acoustic signal interference. The approach effectively distinguishes target depth information from scattering effects, achieving high accuracy in deep water environments.

More Related Videos

Development of New Methods for Quantifying Fish Density Using Underwater Stereo-video Tools
09:32

Development of New Methods for Quantifying Fish Density Using Underwater Stereo-video Tools

Published on: November 20, 2017

9.7K
Author Spotlight: A Stable Phantom Material for Optical and Acoustic Imaging
04:54

Author Spotlight: A Stable Phantom Material for Optical and Acoustic Imaging

Published on: June 16, 2023

3.7K

Related Experiment Videos

Last Updated: Jan 14, 2026

Tracking Infiltration Front Depth Using Time-lapse Multi-offset Gathers Collected with Array Antenna Ground Penetrating Radar
07:14

Tracking Infiltration Front Depth Using Time-lapse Multi-offset Gathers Collected with Array Antenna Ground Penetrating Radar

Published on: May 1, 2018

8.2K
Development of New Methods for Quantifying Fish Density Using Underwater Stereo-video Tools
09:32

Development of New Methods for Quantifying Fish Density Using Underwater Stereo-video Tools

Published on: November 20, 2017

9.7K
Author Spotlight: A Stable Phantom Material for Optical and Acoustic Imaging
04:54

Author Spotlight: A Stable Phantom Material for Optical and Acoustic Imaging

Published on: June 16, 2023

3.7K

Area of Science:

  • Underwater acoustics
  • Signal processing
  • Geophysical exploration

Background:

  • Active detection systems in deep water face challenges from multipath propagation and target scattering.
  • Conventional methods relying on multipath delay matching are often inadequate due to complex echo interference.

Purpose of the Study:

  • To investigate target echo interference characteristics on the frequency-target range intensity plane for depth estimation.
  • To develop a robust method for accurate underwater target depth estimation in reliable acoustic path environments.

Main Methods:

  • Established a ray-based echo interference model incorporating highlight scattering.
  • Developed an f-warping transformation to resample the intensity plane and straighten propagation interference.
  • Implemented a hybrid framework combining time-delay matching with multi-frame stability assessment and adaptive weighting.

Main Results:

  • Decomposed the intensity plane into propagation interference (target depth), scattering interference (target size), and cross-term components.
  • Ensured constant time delay after inverse Fourier transform of the warped intensity plane.
  • Achieved depth estimation errors under 8% of the real target depth using simulations and experimental data.

Conclusions:

  • The proposed method effectively suppresses scattering interference while preserving crucial propagation-related features for depth estimation.
  • The validated technique offers a reliable solution for accurate underwater target depth estimation in challenging acoustic environments.