Results 11 to 20 of about 174,583 (306)
Доклады Белорусского государственного университета информатики и радиоэлектроники, 2022 Radio frequency electromagnetic radiation from base stations is the main source of electromagnetic background generated by mobile (cellular) communication systems in residential areas; its intensity makes a significant contribution to the level of ...
V. I. Mordachev, D. A. Tsyanenka
doaj +1 more source
Ecology and Evolution, 2021 Movement trajectories are usually recorded as a sequence of discrete movement events described by two parameters: step length (distance) and turning angle (bearing). One of the most widespread methods to record the geocoordinates of each step is by a GPS
Jana Růžičková, Zoltán Elek
doaj +1 more source
Correlation and Capacity Calculations with Reference Antennas in an Isotropic Environment
International Journal of Antennas and Propagation, 2012 A reverberation chamber is a convenient tool for over-the-air testing of MIMO devices in isotropic environments. Isotropy is typically achieved in the chamber through the use of a mode stirrer and a turntable on which the device under test (DUT) rides ...
Thorkild B. Hansen
doaj +1 more source
The Journal of Engineering, 2019 Low observable moving target-detection technology under clutter background is the key factor affecting the radar performance. Here, frequency diverse array (FDA) MIMO radar is investigated for low-observable moving target detection.
Xiaolong Chen +5 more
doaj +1 more source
Sensors, 2018 Global navigation satellite systems (GNSS) have provided an excellent way to monitor micro-deformation in real-time. However, at local sites where landslides frequently occur, the environment can include complex surroundings with mountains, dense ...
Junqiang Han +5 more
doaj +1 more source
Comparison between Ellipsoid-Fitting Calibration Techniques for Azimuth-Estimating Three-Axis Magnetometer [PDF]
한국정밀공학회지, 2018 Three-axis magnetometers are widely used in various fields requiring azimuth information. However, accuracy of azimuth estimation based on magnetometer signals may be degraded because of errors such as offset, scale factor, non-orthogonality, hard-iron ...
Tae Hyeong Jeon, Jung Keun Lee
doaj +1 more source
Sensors, 2021 Passive ground emitter geolocation techniques are essential to electronic warfare systems, as they provide threat warnings in hostile environments, while ensuring the electronic silence of the mission platform. Geolocation of enemy emitters indicates the
Mohamed Khalaf-Allah
doaj +1 more source
Dual-Axis Solar Tracking System for Maximum Power Production in PV Systems
Nigerian Journal of Technological Development, 2015 The power developed in a solar energy system depends fundamentally upon the amount of sunlight captured by the photovoltaic modules/arrays. This paper describes a simple electro-mechanical dual axis solar tracking system designed and developed in a study.
Muhd.Ikram Mohd. Rashid +3 more
doaj +3 more sources
ONSHORE SEISMIC IMAGING USING DIFFERENT DATA DOMAIN IN NORTHERN NIGER DELTA, NIGERIA [PDF]
Geological Behavior, 2022 Wide azimuth land acquisition, 3D data is spatially well sampled with a wide range of azimuth and the offsets distributed around those azimuths. This work examined how advance seismic processing technique has come onshore, using offset vector tile ...
Addah I. Dickson +2 more
doaj +1 more source