Results 41 to 50 of about 636,306 (133)

RADAR-base/radar-commons-android: radar-commons-android 1.2.0

open access: yes, 2022
Changes since 1.1.3: Added Android-compatible Avro library based on Apache Avro Changed default call log interval to 1 hour Use updated fine-grained Bluetooth permissions for Android API 31 Improved Github actions Added more control over the sensor ...
Joris Borgdorff   +6 more
core   +1 more source

Ambiguity and area preserving linear transformations in over‐the‐horizon radar

open access: yesIET Radar, Sonar &Navigation, Volume 19, Issue 1, January/December 2025.
The use of recurrent waveforms in over‐the‐horizon radar (OTHR) necessitates techniques for ambiguity resolution and manipulation. In this paper, the authors elucidate methods for systematically transforming any given waveform so that its ambiguity function is transformed by any desired area preserving the linear transformation of the delay‐Doppler ...
Stephen D. Howard, Van Khanh Nguyen
wiley   +1 more source

A Multistatic Over-the-Horizon Radar Simulator

open access: yes
13611366A multistatic Over-the Horizon (OTH) radar network can offer long-range, wide-area early warning for distant threats, such as ballistic and hypersonic missiles.
Tsikrikonis, Nikolaos   +5 more
core   +1 more source

Development of a MIMO Radar System Demonstrator - Calibration and Demonstration of First Results [PDF]

open access: yes, 2012
The success of current spaceborne Synthetic Aperture Radar (SAR) is boosting the performance requirements of next generation systems. In order to cope with the evolution of SAR the design of the new systems will need to meet higher requirements for ...
A. Patyuchenko   +9 more
core   +1 more source

Recovery Following Recurrent Fires Across Mediterranean Ecosystems

open access: yesGlobal Change Biology, Volume 30, Issue 12, December 2024.
Mediterranean ecosystems worldwide are frequently affected by fires. Focusing on areas that burned two times over the past 22 years, we study the post‐fire dynamics, applying a statistical model to the time‐series of a remotely sensed proxy for vegetation cover.
Tiago Ermitão   +3 more
wiley   +1 more source

Study on the Influence of Evaporation Duct on Electromagnetic Wave Propagation in the Bay Area of West Indian Ocean

open access: yes工程科学与技术, 2017
:According to insufficient research on the effect of evaporation duct on the propagation of electromagnetic wave in the bay area of West Indian Ocean,PJ evaporation duct model and parabolic equation method were used to investigate the feasibility of ...
田斌   +4 more
doaj  

Circular synthetic aperture radar sub‐aperture angle information complementation based on azimuth‐controllable generative adversarial network

open access: yesIET Radar, Sonar &Navigation, Volume 18, Issue 10, Page 1779-1795, October 2024.
Specifically, the authors propose a novel CGAN architecture that can control the azimuth angle for arbitrary angle generation, capable of complementing missing CSAR sub‐aperture information. The network incorporates angular labels for various scenarios and integrates a dynamic region‐aware convolution (DRconv) module.
Bingxuan Li   +4 more
wiley   +1 more source

A Simulation Framework for HF-OTH Skywave Radars: the Received Signal

open access: yes, 2007
This paper is focused on the analysis and the simulation of a model for the received signal of a HF-OTH skywave radar. More precisely, this work aims to identify and model the main components of a HF-OTH skywave radar received signal, in order to ...
A. CAPRIA   +8 more
core  

High frequency surface wave radar (HFSWR) simulator

open access: yes, 2007
110 p.High Frequency (HF) - Radar ,also known as Over-The-Horizon (OTH) Radar is able to detect targets that are over the horizon up to a few hundreds kilometers, beyond the range of a conventional radar.
Teo, Mia Koon
core   +1 more source

A practical bistatic passive radar system for use with DAB and DRM illuminators [PDF]

open access: yes, 2008
Digital broadcasts provide powerful illuminators of opportunity with waveforms that produce excellent radar ambiguity functions. An experimental program to investigate the possibility of such broadcasts for target tracking radar is described. In addition,
H. Yardley   +5 more
core   +1 more source

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