Results 11 to 20 of about 439 (181)
Direction Finding Techniques for Over‐the‐Horizon Radars
IET Radar, Sonar & NavigationThere is no ultimate intelligence‐gathering discipline. Intelligence products almost always require multiple sources for further analytical processing.
M. Pacek +3 more
doaj +2 more sources
Distributed Shipborne HFHSSWR Localisation Method Based on Gaussian Markov Fields
IET Radar, Sonar & NavigationThis paper investigates a distributed shipborne high‐frequency hybrid surface‐surface wave radar (HFHSSWR) model that combines shared sky wave paths with distinct shipboard surface wave paths.
Longyuan Xu +3 more
doaj +2 more sources
A general presentation about the OTH-Radar NOSTRADAMUS
2006 IEEE Conference on Radar, 2006 International audienceONERA, funded by the French Ministry of Defence has conducted the realization and experimentations of the Doppler Skywave OTH Radar called NOSTRADAMUS.
Dorey, P. +7 more
core +2 more sources
Over‐the‐Horizon Direct Positioning With Ionospheric Heights Priors
IET Radar, Sonar & NavigationThis study addresses positioning errors in high‐frequency (HF) over‐the‐horizon (OTH) localisation that arise from inaccuracies in ionospheric virtual height measurements.
Shuyu Zheng, Haiying Zhang, Xiuquan Dou
doaj +2 more sources
Assessing Loggerhead Turtle Exposure to Fisheries in Northwest Africa: Predicted Risk and Management Gaps. [PDF]
Ecol EvolBiologging and Global Fishing Watch data reveal extensive spatial and vertical overlap between loggerhead turtles from the Cabo Verde population and fisheries across the Northeast Atlantic, highlighting areas of high predicted bycatch risk and gaps in current protections. ABSTRACT Bycatch is the accidental capture of non‐target animals in fishing gear,
Bowler AI +7 more
europepmc +2 more sources
A Simulation Framework for HF-OTH Skywave Radars: the Received Signal
, 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 +2 more sources
Remote Sensing, 2021 To enhance remote sensing for maritime safety and security, various sensors need to be integrated into a centralized maritime surveillance system (MSS).
Laurence Zsu-Hsin Chuang +2 more
doaj +1 more source
Density Based Clustering Data Association Procedure for Real–Time HFSWRs Tracking at OTH Distances
IEEE Access, 2020 In order to efficiently cover maritime areas at over the horizon (OTH) distances and thus increase marine safety in a nation's exclusive economic zone (EEZ), a network of maritime sensors built around High Frequency Surface Wave Radars (HFSWR) can be an ...
Nikola Stojkovic +2 more
doaj +1 more source
The AN/FPS-118 OTH Radar: Chapter 5, OTH Handbook. [PDF]
, 1996 Abstract : This report familiarizes the radar operators with the radar features used in the daily operation of the radar. These consist of the radar layout, its sector-segment arrangement, the barrier and interrogation beams, the ionospheric model residing in the radar system, and various displays available in the important missions of Correlation and ...
J. Buchau, B. S. Dandekar
openaire +1 more source
IEEE Access, 2020 Phased array over-the-horizon (OTH) radar usually needs to detect sea target and airborne target in different directions. Conventionally, the sea target and airborne target are detected sequentially with the coherent integration completely accomplished ...
Zhaoyi Wang +3 more
doaj +1 more source