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

IR Spectrum Peak Splitting: Symmetric vs Asymmetric Vibrations01:08

IR Spectrum Peak Splitting: Symmetric vs Asymmetric Vibrations

1.8K
Identical bonds within a polyatomic group can stretch symmetrically (in-phase) or asymmetrically (out-of-phase). Similar to hydrogen bonding, these vibrations also influence the shape of the IR peak. Generally, asymmetric stretching frequencies are higher than symmetric stretching frequencies. For example, primary amines exhibit two distinct IR peaks between 3300–3500 cm−1 corresponding to the symmetric and asymmetric N-H stretching, while secondary amines exhibit a single...
1.8K
Bandpass Sampling01:17

Bandpass Sampling

475
In signal processing, bandpass sampling is an effective technique for sampling signals that have most of their energy concentrated within a narrow frequency band. This type of signal is known as a bandpass signal. The key principle of bandpass sampling involves sampling the signal at a rate that is greater than twice the signal's bandwidth to prevent aliasing.
A bandpass signal has a spectrum with a lower frequency limit, denoted as ω1, and an upper frequency limit, denoted as ω2....
475
Doppler Effect - II01:05

Doppler Effect - II

4.4K
The Doppler effect has several practical, real-world applications. For instance, meteorologists use Doppler radars to interpret weather events based on the Doppler effect. Typically, a transmitter emits radio waves at a specific frequency toward the sky from a weather station. The radio waves bounce off the clouds and precipitation and travel back to the weather station. The radio frequency of the waves reflected back to the station appears to decrease if the clouds or precipitation are moving...
4.4K
Electronic Distance Measuring Instruments01:30

Electronic Distance Measuring Instruments

465
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...
465
IR Frequency Region: Fingerprint Region01:03

IR Frequency Region: Fingerprint Region

1.9K
IR spectra are divided into two main regions: the diagnostic region and the fingerprint region. The diagnostic region of the spectrum lies above 1500 cm−1. The absorptions resulting from single-bond vibrations of the N–H, C–H, and O–H stretch at higher wavenumbers and appear on the left side of the spectrum. The stretching absorptions of the C≡C and C≡N occur between 2100–2300 cm−1. In contrast, those arising from stretching absorptions of the...
1.9K

You might also read

Related Articles

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

Sort by
Same author

Choroidal coloboma masquerading as regressed retinoblastoma.

BMJ case reports·2026
Same author

Diagnostic performance of multiple artificial intelligence (AI) algorithms for diabetic retinopathy screening in primary care: Evidence from real-world settings in India.

Indian journal of ophthalmology·2026
Same author

Identification of novel pyrazole-containing thiazolidine-2,4-dione derivatives as potent α-glucosidase inhibitors: design, synthesis and antidiabetic assessment.

Bioorganic chemistry·2026
Same author

In-office bleaching effect with different concentrations of hydrogen peroxide on enamel color and demineralization.

Bioinformation·2026
Same author

Effect Sizes and Statistical Power in Hearing Aid Research.

American journal of audiology·2026
Same author

Perinatal Neuroprotective Strategies and Intraventricular Hemorrhage in Preterm Infants ≤32 Weeks' Gestational Age: A Prospective Study With a Historical Control Cohort.

Cureus·2026
Same journal

Multifunctional reconfigurable terahertz metasurface based on vanadium dioxide phase transition: achieving broadband absorption and efficient polarization conversion.

Applied optics·2026
Same journal

High-Q-factor electromagnetically induced transparency utilizing quasi-bound states in the continuum in an all-dielectric terahertz metasurface.

Applied optics·2026
Same journal

Automated stitching interferometry for high-precision metrology of X-ray mirrors.

Applied optics·2026
Same journal

Experimental demonstration of an approach to designing a metal-dielectric DBR resonant cavity structure.

Applied optics·2026
Same journal

High-precision wavefront reconstruction from a single-shot interferogram using a physics-driven hybrid feature calibration network.

Applied optics·2026
Same journal

Ultra-high-Q Fano resonance based on coupled topological corner states in Kagome photonic crystals.

Applied optics·2026
See all related articles

Related Experiment Video

Updated: Jan 17, 2026

High Speed Sub-GHz Spectrometer for Brillouin Scattering Analysis
13:31

High Speed Sub-GHz Spectrometer for Brillouin Scattering Analysis

Published on: December 22, 2015

15.7K

Multiband complementary dual-chirp waveform for the simultaneous range and velocity detection.

Mukund Jha, Lakshay Kumar, Rajveer Dhawan

    Applied Optics
    |September 22, 2025
    PubMed
    Summary
    This summary is machine-generated.

    This study introduces a photonic radar using V-shaped chirps for accurate range and velocity detection. The method simplifies processing, enabling high-precision measurements for moving targets and radar imaging.

    More Related Videos

    Wideband Optical Detector of Ultrasound for Medical Imaging Applications
    08:21

    Wideband Optical Detector of Ultrasound for Medical Imaging Applications

    Published on: May 11, 2014

    11.7K
    Continuous-Wave Propagation Channel-Sounding Measurement System - Testing, Verification, and Measurements
    09:36

    Continuous-Wave Propagation Channel-Sounding Measurement System - Testing, Verification, and Measurements

    Published on: June 25, 2021

    3.5K

    Related Experiment Videos

    Last Updated: Jan 17, 2026

    High Speed Sub-GHz Spectrometer for Brillouin Scattering Analysis
    13:31

    High Speed Sub-GHz Spectrometer for Brillouin Scattering Analysis

    Published on: December 22, 2015

    15.7K
    Wideband Optical Detector of Ultrasound for Medical Imaging Applications
    08:21

    Wideband Optical Detector of Ultrasound for Medical Imaging Applications

    Published on: May 11, 2014

    11.7K
    Continuous-Wave Propagation Channel-Sounding Measurement System - Testing, Verification, and Measurements
    09:36

    Continuous-Wave Propagation Channel-Sounding Measurement System - Testing, Verification, and Measurements

    Published on: June 25, 2021

    3.5K

    Area of Science:

    • Photonics
    • Radar Systems
    • Signal Processing

    Background:

    • Traditional radar systems often require complex signal processing and high-speed hardware.
    • Accurate simultaneous range and velocity detection remains a challenge in certain applications.

    Purpose of the Study:

    • To develop a photonic frequency-modulated continuous wave (FMCW) radar system.
    • To achieve high-accuracy simultaneous range and velocity detection using novel chirp waveforms.
    • To simplify radar signal processing requirements.

    Main Methods:

    • Utilized multiband complementary V-shaped chirps for FMCW radar.
    • Employed a dual-polarization dual-parallel Mach-Zehnder modulator for waveform generation.
    • Demonstrated inverse synthetic aperture radar (ISAR) imaging with a down-chirp linear frequency-modulated signal.

    Main Results:

    • Achieved range accuracy of 50 cm and velocity accuracy of 0.7 m/s for a target at 100 m moving at 60 m/s.
    • Estimated toy car velocity with 0.3 m/s accuracy.
    • Obtained high-resolution ISAR imaging with range and cross-range errors below 4 cm.

    Conclusions:

    • The proposed photonic radar approach enables accurate simultaneous range and velocity detection with reduced processing complexity.
    • The V-shaped chirp technique is effective for high-precision radar measurements and imaging.
    • Experimental validation confirms the system's performance and potential for advanced radar applications.