Results 61 to 70 of about 117,363 (337)
Adaptive algorithm for wireless data transmission (including images) based on SISO system and OFDM technique [PDF]
Serbian Journal of Electrical Engineering, 2018 The efficiency of wireless systems to transmit information in a complex interference situation is one of the main indicators of the effectiveness of the system, which can be characterized by the probability of an error in the transmitted message.
Fedosov Valentin +2 more
doaj +1 more source
Materials, 2019 A low radar cross section (RCS) circularly polarized patch antenna array operating at the downlink S-band (2492 ± 5 MHz) of the Chinese Compass Navigation Satellite System (CNSS) is proposed. The low RCS is achieved by replacing the conventional metallic
Jianxing Li +4 more
semanticscholar +1 more source
Nanoindentation Criteria for Combinatorial Thin Film Libraries
Advanced Engineering Materials, EarlyView.Thin‐film material libraries are compositional spreads used for screening composition‐structure‐property relationships. Nanoindentation is often used to characterize mechanical behavior across these systems, however variations in methodology are widespread.
Andre Bohn, Adie Alwen, Andrea M. Hodge
wiley +1 more source
Beam Avoidance for Human Safety in Radiative Wireless Power Transfer
IEEE Access, 2020 Prior studies show that exposure to radio-frequency electromagnetic field (RF-EMF) waves can increase the chance of developing health-related problems.
Lorenz Ginting +3 more
doaj +1 more source
Ant colony optimisation-based radiation pattern manipulation algorithm for electronically steerable array radiator antennas [PDF]
, 2009 A new algorithm for manipulating the radiation pattern of Electronically Steerable Array Radiator Antennas is proposed. A continuous implementation of the Ant Colony Optimisation (ACO) technique calculates the optimal impedance values of reactances ...
Aelterman, Jan +3 more
core +1 more source
Adaptive algorithm based on antenna arrays for radio communication systems
Serbian Journal of Electrical Engineering, 2017 Trends in the modern world increasingly lead to the growing popularity of wireless technologies. This is possible due to the rapid development of mobile communications, the Internet gaining high popularity, using wireless networks at enterprises, offices, buildings, etc.
Fedosov Valentin +2 more
openaire +3 more sources
Handbook of Establishing and Maintaining Oxygen‐Free Atmospheres
Advanced Engineering Materials, EarlyView.This study presents a practical framework for creating oxygen‐free atmospheres at ambient pressure using silane‐doped inert gases. The results show that ultra‐low oxygen levels and strongly reduced water content can be achieved through controlled silane dosing, drying systems, and sensor monitoring.
Sascha Jan Zimmermann +3 more
wiley +1 more source
A Real-Time Capable Software-Defined Receiver Using GPU for Adaptive Anti-Jam GPS Sensors
Sensors, 2011 Due to their weak received signal power, Global Positioning System (GPS) signals are vulnerable to radio frequency interference. Adaptive beam and null steering of the gain pattern of a GPS antenna array can significantly increase the resistance of GPS ...
Dennis Akos +6 more
doaj +1 more source
Port Decoupling for Small Arrays by Means of an Eigenmode Feed Network [PDF]
, 2008 An alternative approach to port decoupling and matching of arrays with tightly coupled elements is proposed. The method is based on the inherent decoupling effect obtained by feeding the orthogonal eigenmodes of the array.
Coetzee, Jacob, Yu, Y
core +2 more sources