Results 11 to 20 of about 33,112 (263)

Considerations of Utilizing Telemetry and GPS System in Sounding Rockets [PDF]

open access: yesفصلنامه علوم و فناوری فضایی, 2008
Utilization of the GPS and telemetry systems in sounding rockets are described in this paper. The GPS system is composed of a GPS receiver and its special antennas for this mission.
B. Beheshti Boroumand   +5 more
doaj   +1 more source

Do GPS clusters really work? carnivore diet from scat analysis and GPS telemetry methods

open access: yesWildlife Society Bulletin, 2011
Global Positioning System (GPS) data collected using radiocollars have allowed researchers to identify sites where predators have killed prey, but this method has yet to be compared with scat analysis, a more traditional method of determining diet ...
Michelle M. Bacon   +3 more
doaj   +2 more sources

Population size estimates based on GPS telemetry. [PDF]

open access: yesZool Res
Fan YX   +7 more
europepmc   +3 more sources

Importance of evaluating GPS telemetry collar performance in monitoring reintroduced populations

open access: yesWildlife Society Bulletin, 2017
Global Positioning System (GPS) tracking collar technology has been widely employed in wildlife research and is valuable for understanding movement patterns of reintroduced populations, yet the associated fix‐rate bias and positional errors are a serious
James A. Vance   +3 more
doaj   +2 more sources

Large area used by squirrel gliders in an urban area, uncovered using GPS telemetry. [PDF]

open access: yesEcol Evol, 2021
AbstractThe squirrel glider (Petaurus norfolcensis) is a threatened, gliding marsupial that persists in fragmented landscapes despite its restricted capacity to cross large gaps. As measures to maintain and/or restore suitable habitat depend on knowledge about the species' ecological requirements, we investigated the area used by squirrel gliders in an
Meyer NFV   +7 more
europepmc   +6 more sources

Is GPS telemetry location error screening beneficial? [PDF]

open access: yesWildlife Biology, 2017
The accuracy of global positioning system (GPS) locations obtained from study animals tagged with GPS monitoring devices has been a concern as to the degree it influences assessments of movement patterns, space use, and resource selection estimates.
Kirsten E. Ironside   +3 more
openaire   +1 more source

Tracking fish using ‘buoy-based’ GPS telemetry [PDF]

open access: yesMarine Ecology Progress Series, 2009
The marine environment imposes severe constraints on the means by which location information can be obtained from submerged, freely swimming animals. Standard methods of tracking marine organisms are often labour intensive, expensive, or of low spatial and temporal resolution.
TAC Riding   +4 more
openaire   +1 more source

GPS-Denied Navigation Aided by Synthetic Aperture Radar Using the Range-Doppler Algorithm

open access: yesNavigation, 2022
The need to successfully navigate in the absence of GNSS has grown in recent years. In particular, light aircraft such as UAVs are growing in popularity for a variety of applications vulnerable to GPS denial.
Colton Lindstrom   +3 more
doaj   +1 more source

Benefits and biases of VHF and GPS telemetry: A case study of American alligator spatial ecology

open access: yesWildlife Society Bulletin, 2016
American alligators (Alligator mississippiensis) historically occupied freshwater habitats such as isolated wetlands, lakes, rivers, bottomland swamps, and floodplains in coastal and inland sites.
Gregory M. Skupien   +2 more
doaj   +1 more source

Design of Combined Printed Helical Spiral Antenna and Helical Inverted-F Antenna for Unmanned Aerial Vehicle Application

open access: yesIEEE Access, 2020
The design and implementation of printed helical spiral antenna (PHSA) and helical printed inverted-F antenna (IFA) are presented for unmanned aerial vehicle (UAV) with global positioning system (GPS) L1 band (1.57 GHz) and telemetry communication ...
Yunan Han   +7 more
doaj   +1 more source

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