Results 21 to 30 of about 40,023 (305)
DVB-S Signal Tracking Techniques for Mobile Phased Arrays [PDF]
, 2010 —A system that uses adaptive beamforming techniques for mobile Digital Video Broadcasting Satellite (DVB-S) reception is proposed in this paper. The purpose is to enable DVB-S reception in moving vehicles.
Blom, Koen C.H. +4 more
core +3 more sources
Remote Sensing, 2023 Antenna arrays with adaptive filtering can protect the integrity and functionality of global navigation satellite system (GNSS) receivers against interference. However, a major problem with existing adaptive array processing algorithms is that they cause
Song Li +4 more
doaj +1 more source
International Journal of Antennas and Propagation, 2017 The Global Navigation Satellite System (GNSS) receiver is vulnerable to active jamming, which results in imprecise positioning. Therefore, antijamming performance of the receiver is always the key to studies of satellite navigation system. In antijamming
Yanyun Gong +3 more
doaj +1 more source
DS-CDMA microcellular networks with adaptive antennas [PDF]
, 1996 This paper considers the performance of a DS-CDMA system which employs adaptive antenna technology at the basestation site of a microcell. Results for a typical microcellular environment produced with the help of a ray tracing tool highlight the ...
Beach, MA, Tsoulos, G
core +2 more sources
Trends in Adaptive Array Processing
International Journal of Antennas and Propagation, 2012 Enormous progress has been made during the past five decades in the area of adaptive array processing. Increased computational power has resulted in many practical applications of optimum algorithms.
Hema Singh, Rakesh Mohan Jha
doaj +1 more source
Load-Aware Energy Efficient Adaptive Large Scale Antenna System
IEEE Access, 2020 This paper proposes an adaptive large scale antenna system (ALSAS) for enhancing energy efficiency in low density wireless network scenarios. The proposed ALSAS comprises of two stages, a novel adaptive discontinuous transmission (ADTx) stage and an ...
Wahyu Pramudito +5 more
doaj +1 more source
Iterative turbo beamforming for OFDM based hybrid terrestrial-satellite mobile system [PDF]
, 2012 In the context of orthogonal frequency division multiplexing (OFDM)-based systems, pilot-based beamforming (BF) exhibits a high degree of sensitivity to the pilot sub-carriers.
Evans, B.G., Imran, M.A., Khan, A.H.
core +1 more source
Journal of Engineering, 2018 Angle of arrival (AOA) estimation for wideband signal becomes more necessary for modern communication systems like Global System for Mobile (GSM), satellite, military applications and spread spectrum (frequency hopping and direct sequence).
Bassim Sayed Mohammed +1 more
doaj +1 more source
MIMO radar space–time adaptive processing using prolate spheroidal wave functions [PDF]
, 2008 In the traditional transmitting beamforming radar system, the transmitting antennas send coherent waveforms which form a highly focused beam. In the multiple-input multiple-output (MIMO) radar system, the transmitter sends noncoherent (possibly ...
Chun-yang Chen +2 more
core +2 more sources
Applied SciencesNew positioning solutions are a key factor in the pursuit of autonomous driving. Global Navigation Satellite System (GNSS) is the most common method; however, traditional systems may have high position errors due to the signal’s path between the ...
Gonçalo Dores +3 more
doaj +1 more source