Results 61 to 70 of about 14,406 (302)

Feasibility Study of Using 5G Signals for Illumination Purposes in Passive Radar

open access: yesИзвестия высших учебных заведений России: Радиоэлектроника
Introduction. Passive radars perform target detection based on reflected signals emitted by third-party transmitters. The absence of its own transmitter determines the main advantages of passive radars compared to conventional active radars: lower cost ...
V. M. Kutuzov   +3 more
doaj   +1 more source

Target Coordinates Estimation by Passive Radar with a Single non-Cooperative Transmitter and a Single Receiver [PDF]

open access: yesJournal of Communications Software and Systems, 2020
Passive radar is a bistatic radar that detects and tracks targets by processing reflections from non-cooperative transmitters. Due to the bistatic geometry for this radar, a target can be localized in Cartesian coordinates by using one of the following ...
Ali Kazem   +2 more
doaj  

Interface Wettability Transition‐Driven Drug Release and Dual‐Phase Functionalization in Implant Abutment

open access: yesAdvanced Science, EarlyView.
A temporally controlled drug release coating is developed for abutments using a superhydrophobic coating self‐assembled on mesoporous silica. This surface provides sequential functionality: initial contamination resistance through non‐wetting, followed by controlled drug release via wettability transition.
Zhongchao Wang   +8 more
wiley   +1 more source

Analysis of passive interference on radio station from AC UHV power

open access: yesE3S Web of Conferences, 2018
The problems of Electromagnetic Interference in Airborne Intelligence Radar Stations near the AC UHV Transmission Lines is researched in this paper, which is mainly passive interference. And then analyzed the passive interference of AC UHV lines.
GAN Zheyuan   +3 more
doaj   +1 more source

The effects of DVB-T SFN data on passive radar signal processing

open access: yes, 2013
In this paper, we compare and contrast code, time and spatial domain signal processing techniques for mitigating the effects of the ambiguities present in single frequency network digital broadcast signals in passive radar. By performing these additional
Stephen J. Searle   +11 more
core   +1 more source

Silicon‐Embedded Multifunctional Heterogeneous Integration for Miniaturized Photoplethysmography Detection Devices

open access: yesAdvanced Science, EarlyView.
ABSTRACT The multifunctional integration of chips with high flexibility and scalable manufacturing is crucial for enhancing chip performance, reducing chip size, and simplifying chip design. However, balancing volume, cost, flexibility, and functionality using traditional heterogeneous integration methods is challenging.
Lang Chen   +7 more
wiley   +1 more source

Experimental comparison of Starlink and OneWeb signals for passive radar

open access: yes, 2023
Given the limited available information about Star-link and OneWeb signals but the relevant capabilities that they may provide, this work is focused on the experimental acquisition and comparison for passive radar applications of the user downlink ...
Ummenhofer, Martin   +5 more
core   +1 more source

A Novel Approach Based on Acceptor–Donor–Acceptor Type Molecules Enhances the Therapeutic Efficacy and Safety of Photothermal Therapy for Osteosarcoma

open access: yesAdvanced Science, EarlyView.
Jin et al. developed IEICO‐F nanoparticles with enhanced photothermal conversion efficiency via optimized push‐pull effect. Under 808 nm laser, these nanoparticles effectively generated heat to kill osteosarcoma cells and exhibited significant tumor suppression in vivo. Therefore, this novel A‐D‐A type molecule‐based photothermal therapy strategy holds
Zhijian Jin   +9 more
wiley   +1 more source

Experimental Research on Micro-Doppler Effect of Multi-rotor Drone with Digital Television Based Passive Radar

open access: yesLeida xuebao, 2018
In this paper, experimental results of micro-Doppler effect on a multi-rotor drone with digital television based passive radar are discussed. First, the bistatic passive radar micro-motion model of the drone is established.
Liu Yuqi   +5 more
doaj   +1 more source

Range compression strategies for passive radar on airborne platforms

open access: yes, 2022
S.25-30This paper focuses on range compression aspects to be considered in the signal processing of passive radars. In particular it focuses on passive radar systems mounted on moving platforms for ground moving target indication on the one hand and on ...
Cristallini, D.   +3 more
core   +1 more source

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