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

Relation of DFT to z-Transform01:20

Relation of DFT to z-Transform

461
The Discrete Fourier Transform (DFT) is a crucial tool for analyzing the frequency content of discrete-time signals. It converts a sequence of N samples from the time domain into its corresponding sequence in the frequency domain, where each sample represents a specific frequency component.
To understand how the DFT works, it's helpful to consider the z-transform, which is a method for representing discrete sequences in the complex frequency domain. The z-transform involves summing the...
461

You might also read

Related Articles

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

Sort by
Same author

Ultrafast ultrasound shear wave elastography: a novel approach for assessing myocardial stiffening in congenital aortic stenosis.

Open heart·2026
Same author

Left Ventricular Strain-Volume Loops in a Healthy Population: The Role of Sex and Age.

Echocardiography (Mount Kisco, N.Y.)·2026
Same author

Correction: Continuous shear wave measurements for dynamic cardiac stiffness evaluation in pigs.

Scientific reports·2026
Same author

Cobalt internal exposure and risk of cognitive impairment among older adults: A national prospective cohort study.

Journal of hazardous materials·2026
Same author

Urinary nickel and risk of all-cause and neurological mortality in Chinese older adults: Evidence from a prospective cohort study.

Ecotoxicology and environmental safety·2026
Same author

Dynamic mode decomposition as a framework for denoising ultrafast power doppler images.

Computer methods and programs in biomedicine·2025

Related Experiment Video

Updated: Aug 29, 2025

Micropunching Lithography for Generating Micro- and Submicron-patterns on Polymer Substrates
09:24

Micropunching Lithography for Generating Micro- and Submicron-patterns on Polymer Substrates

Published on: July 2, 2012

15.3K

Sparse 2-D PZT-on-PCB Arrays With Density Tapering.

Luxi Wei, Enrico Boni, Alessandro Ramalli

    IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control
    |September 6, 2022
    PubMed
    Summary

    Researchers developed novel sparse spiral array ultrasound probes for volumetric imaging. These probes enable flexible transmission and reception, demonstrating viability for advanced medical imaging applications.

    More Related Videos

    A Fabrication and Measurement Method for a Flexible Ferroelectric Element Based on Van Der Waals Heteroepitaxy
    10:40

    A Fabrication and Measurement Method for a Flexible Ferroelectric Element Based on Van Der Waals Heteroepitaxy

    Published on: April 8, 2018

    8.3K
    Characterization of Full Set Material Constants and Their Temperature Dependence for Piezoelectric Materials Using Resonant Ultrasound Spectroscopy
    07:44

    Characterization of Full Set Material Constants and Their Temperature Dependence for Piezoelectric Materials Using Resonant Ultrasound Spectroscopy

    Published on: April 27, 2016

    9.6K

    Related Experiment Videos

    Last Updated: Aug 29, 2025

    Micropunching Lithography for Generating Micro- and Submicron-patterns on Polymer Substrates
    09:24

    Micropunching Lithography for Generating Micro- and Submicron-patterns on Polymer Substrates

    Published on: July 2, 2012

    15.3K
    A Fabrication and Measurement Method for a Flexible Ferroelectric Element Based on Van Der Waals Heteroepitaxy
    10:40

    A Fabrication and Measurement Method for a Flexible Ferroelectric Element Based on Van Der Waals Heteroepitaxy

    Published on: April 8, 2018

    8.3K
    Characterization of Full Set Material Constants and Their Temperature Dependence for Piezoelectric Materials Using Resonant Ultrasound Spectroscopy
    07:44

    Characterization of Full Set Material Constants and Their Temperature Dependence for Piezoelectric Materials Using Resonant Ultrasound Spectroscopy

    Published on: April 27, 2016

    9.6K

    Area of Science:

    • Ultrasound technology
    • Medical imaging
    • Array signal processing

    Background:

    • Two-dimensional (2-D) arrays provide volumetric imaging without mechanical scanning.
    • Sparse arrays with spiral element patterns allow direct connection to ultrasound systems.
    • This facilitates flexible transmission and reception strategies for enhanced imaging.

    Purpose of the Study:

    • To design, fabricate, and evaluate prototype sparse spiral array ultrasound probes.
    • To assess the feasibility of this design for volumetric ultrasound imaging.

    Main Methods:

    • Developed two prototype probes at 2.5-MHz (low-frequency) and 5-MHz (high-frequency) center frequencies.
    • Utilized piezoelectric ceramics and printed circuit board substrates for probe construction.
    • Characterized probe performance including element functionality, peak pressure, and bandwidth.

    Main Results:

    • Achieved 88% and 95% working elements for LF and HF probes, respectively.
    • Generated peak pressures of 21 kPa/V (LF) and 96 kPa/V (HF) at specified focal depths.
    • Obtained one-way -3-dB bandwidths of 26% (LF) and 32% (HF).

    Conclusions:

    • The developed sparse spiral array probes are functional and suitable for volumetric imaging.
    • These prototypes demonstrate the potential of sparse array designs in ultrasound technology.
    • Experimental results confirm the viability of these probes for tissue-mimicking phantom imaging.