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Algorithm for Recognizing the Type of Modulation and Measuring Parameters of Radar Signals with Chirp

open access: yesДоклады Белорусского государственного университета информатики и радиоэлектроники, 2022
One of the most informative parameters of the signal of radar signals is its carrier frequency. Measuring and memorizing the carrier frequency of a reconnaissance radio-electronic device is one of the most important functions of a radio intelligence ...
D. V. Arkhipenkov
doaj   +1 more source

Ultrasonic Proximal Sensing of Pasture Biomass

open access: yesRemote Sensing, 2019
The optimization of pasture food value, known as ‘biomass’, is crucial in the management of the farming of grazing animals and in improving food production for the future.
Mathew Legg, Stuart Bradley
doaj   +1 more source

Frequency Response Enhancement of Photonic Sampling Based on Cavity-Less Ultra-Short Optical Pulse Source

open access: yesIEEE Photonics Journal, 2022
The influence of the residual pulse chirp and the spectrum shape from a cavity-less optical pulse source on the sampling performance is theoretically analyzed.
Zhengkai Li   +9 more
doaj   +1 more source

Developmental Effects on Auditory Neural Oscillatory Synchronization Abnormalities in Autism Spectrum Disorder

open access: yesFrontiers in Integrative Neuroscience, 2019
Previous studies have found alterations in 40 Hz oscillatory activity in response to auditory stimuli in adults with Autism Spectrum Disorder (ASD). The current study sought to examine the specificity and developmental trajectory of these findings by ...
Lisa A. De Stefano   +7 more
doaj   +1 more source

Generation of Vortex Optical Beams Based on Chiral Fiber-Optic Periodic Structures

open access: yesSensors, 2020
In this paper, we consider the process of fiber vortex modes generation using chiral periodic structures that include both chiral optical fibers and chiral (vortex) fiber Bragg gratings (ChFBGs).
Azat Gizatulin   +5 more
doaj   +1 more source

Joint Radar and Communications With Multicarrier Chirp-Based Waveform

open access: yesIEEE Open Journal of the Communications Society, 2022
We consider a multicarrier chirp-based waveform for joint radar and communication (JRC) systems and derive its time discrete periodic ambiguity function (AF).
Fredrik Berggren, Branislav M. Popovic
doaj   +1 more source

Auditory brainstem-evoked response to chirp and click stimuli in children with moderate and severe sensorineural hearing loss

open access: yesJournal of Medicine in Scientific Research, 2018
Background Auditory brainstem response (ABR) using click stimuli enables global objective estimation of hearing threshold. The application of chirp stimuli aims to produce synchronized response from large portion of hair cells in the basilar membrane ...
Amal El-Attar   +3 more
doaj   +1 more source

On estimating parameters of a multi-component Chirp Model with equal chirp rates

open access: yesIEEE Transactions on Aerospace and Electronic Systems, 2023
Multi-component chirp signal models with equal chirp rates appear in various radar applications, e.g., synthetic aperture radar, echo signal of a rapid mobile target, etc. Many sub-optimal estimators have been developed for such models, however, these suffer from the problem of either identifiability or error propagation effect.
Abhinek Shukla   +3 more
openaire   +3 more sources

Classification of chirp signals using hierarchical bayesian learning and MCMC methods [PDF]

open access: yes, 2002
This paper addresses the problem of classifying chirp signals using hierarchical Bayesian learning together with Markov chain Monte Carlo (MCMC) methods.
Davy, Manuel   +5 more
core   +1 more source

3D chirp sub-bottom imaging system: design and first 3D volume

open access: yes, 2005
Chirp sub-bottom profilers are marine acoustic devices that use a known and repeatable source signature (1 – 24 kHz) to produce decimetre vertical resolution crosssections of the sub-seabed.
Henstock, Timothy J.   +6 more
core   +2 more sources

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