Results 61 to 70 of about 160,282 (360)

Radar Signal Processing [PDF]

open access: yes, 2012
Tato bakalářská práce se věnuje problematice zpracování a vyhodnocení signálu z Dopplerova radaru. Zpracovaním signálu se konkrétně myslí výpočet rychlosti snímaného objektu na základě získané odezvy z radaru.
Komora, Matúš
core  

Rational Design of Printable Carbon Nanotube Transparent Conductive Films via Data‐Driven and Mechanistic Insights

open access: yesAdvanced Functional Materials, EarlyView.
A machine learning and simulation‐guided strategy is demonstrated for gentle, non‐sonication dispersion of carbon nanotubes, preserving structural integrity and performance. This approach enables transparent conductive films with low sheet resistance, high transmittance, and sub‐20 µm printability.
Ying Zhou   +7 more
wiley   +1 more source

Fast principal component analysis‐based detection of small targets in sea clutter

open access: yesIET Radar, Sonar & Navigation, 2022
Aiming at fast small target detection in high‐resolution maritime surveillance radars, this letter proposes a fast detection method using multiple salient features extracted from radar returns and principal component analysis (PCA) in the feature space ...
Jing‐Yi Li   +3 more
doaj   +1 more source

Design and Implementation of a FPGA and DSP Based MIMO Radar Imaging System [PDF]

open access: yes, 2015
The work presented in this paper is aimed at the implementation of a real-time multiple-input multiple-output (MIMO) imaging radar used for area surveillance.
Dong Liang   +4 more
core   +2 more sources

Mechanistic Insights into a Synergistic FeOx/Fe‐N4 System for Practical Nitrate Abatement with Value‐Added Ammonia Recovery

open access: yesAdvanced Functional Materials, EarlyView.
This work provides a novel interpretation of the nitrate reduction mechanism on iron oxides (FeOx) by employing constant‐potential density functional calculations and reports the design and synthesis of a robust and high‐performance Fe3O4/Fe‐N4‐C catalyst with remarkable Faradaic efficiency, current density, and stability under practical reaction ...
Qiang Zhou   +8 more
wiley   +1 more source

Clutter suppression based on iterative reweighted methods with multiple measurement vectors for airborne radar

open access: yesIET Radar, Sonar & Navigation, 2022
Sparse recovery algorithms have been applied to the Space‐time adaptive processing for reducing the requirement of samples over the past 15 years. However, many Sparse recovery algorithms are not robust and need accurate user parameters.
Cheng Liu   +3 more
doaj   +1 more source

Using EMD-FrFT filtering to mitigate high power interference in chirp tracking radars [PDF]

open access: yes, 2011
This letter presents a new signal processing subsystem for conventional monopulse tracking radars that offers an improved solution to the problem of dealing with manmade high power interference (jamming).
Elgamel, Sherif, Soraghan, John
core   +1 more source

Frontier Advances of Emerging High‐Entropy Anodes in Alkali Metal‐Ion Batteries

open access: yesAdvanced Functional Materials, EarlyView.
Recent advances in microscopic morphology control of high‐entropy anode materials for alkali metal‐ion batteries. Abstract With the growing demand for sustainable energy, portable energy storage systems have become increasingly critical. Among them, the development of rechargeable batteries is primarily driven by breakthroughs in electrode materials ...
Liang Du   +14 more
wiley   +1 more source

Weighted Adaptive Step Coherent Integration Method for Maneuvering Target Based on Dynamic Programming

open access: yesLeida xuebao, 2017
In allusion to the coupling relationship among radial velocity variation, range migration, and Doppler spread of a maneuvering target, a Dynamic Programing (DP)-based Weighted Adaptive Coherent Integration (DPWACI) detection method is proposed.
Chen Shuailin   +4 more
doaj   +1 more source

An Adaptive Hierarchical Detection Method for Ship Targets in High-Resolution SAR Images

open access: yesRemote Sensing, 2020
With the improvement of image resolution in synthetic aperture radars (SARs), sea clutter characteristics become more complex, which poses new challenges to traditional ship target detection missions.
Yi Liang   +4 more
doaj   +1 more source

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