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Aliasing

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Accurate signal sampling and reconstruction are crucial in various signal-processing applications. A time-domain signal's spectrum can be revealed using its Fourier transform. When this signal is sampled at a specific frequency, it results in multiple scaled replicas of the original spectrum in the frequency domain. The spacing of these replicas is determined by the sampling frequency.
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Related Experiment Video

Updated: Jul 23, 2025

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

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

Published on: November 20, 2017

Recent Advances in Underwater Signal Processing.

Xuebo Zhang¹, Haixin Sun²

¹Whale Wave Technology Inc., Kunming 650200, China.

Sensors (Basel, Switzerland)

|July 14, 2023

Summary

This summary is machine-generated.

The ocean is vital for life on Earth, regulating climate and supporting biodiversity. Understanding ocean health is crucial for global environmental sustainability and human well-being.

Area of Science:

Marine Biology
Oceanography
Environmental Science

Background:

The ocean covers 71% of Earth's surface.
It plays a critical role in regulating global climate.

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