Results 31 to 40 of about 2,817,113 (291)
A Low Cost Correlator Structure in the Pseudo-Noise Code Acquisition System
IEICE Transactions on Communications, 2009 The critical problem of the pseudo-noise (PN) code acquisition system is the contradiction between the acquisition performance and the calculation complexity. This paper presents a low cost correlator (LCC) structure that can search for two PN code phases in a single accumulation period by eliminating redundant computation.
LU, WeiJun +3 more
openaire +2 more sources
Sensors, 2015 For vehicle positioning with Global Navigation Satellite System (GNSS) in urban areas, open-loop tracking shows better performance because of its high sensitivity and superior robustness against multipath.
Hang Ruan, Jian Li, Lei Zhang, Teng Long
doaj +1 more source
Research Into a Recovery Method of GNSS Authorized Service Signal Component
IEEE Access, 2018 A code recovery method of a global navigation satellite system (GNSS) authorized service (AS) signal component is described under the condition of a high signal-to-noise ratio. The correctness of the spreading code verification can be used to monitor the
Wei Xiao +4 more
doaj +1 more source
PN code acquisition method based on prepositive 3-order correlated detection
Tongxin xuebao, 2009 To increase the detection probability of long period PN（pseudo noise） code and decrease its acquisition time, a new method of 3-order correlated detection was proposed, that is, before the synchronization of pseudo random sequence, the chip phase should ...
HAO Yan-ling, DENG Zhi-xin, WANG Wei
doaj +2 more sources
Period Estimation of Spread Spectrum Codes Based on ResNet
Sensors, 2023 In order to more effectively monitor and interfere with enemy signals, it is particularly important to accurately and efficiently identify the intercepted signals and estimate their parameters in the increasingly complex electromagnetic environment ...
Han-Qing Gu +4 more
doaj +1 more source
Generation and implementation of IRNSS Standard Positioning Signal
Engineering Science and Technology, an International Journal, 2016 The two sorts of services given by the Indian Regional Navigational Satellite System (IRNSS) satellites are Standard Positioning Service (SPS) and Restricted Service (RS).
A.R. Yashaswini +2 more
doaj +1 more source
A seismic field test with a Low-level Acoustic Combustion Source and Pseudo-Noise codes [PDF]
Journal of Applied Geophysics, 2009 The Low-level Acoustic Combustion Source (LACS) which can fire its pulses at a high rate, has been tested successfully as a seismic marine source on shallow ice-age sediments in Byfjorden at Bergen, Norway. Pseudo-Noise pulsed signals with spiky autocorrelation functions were used to detect the sediments.
Askeland, Bjørn +3 more
openaire +3 more sources
Pilot Allocation Scheme for Pseudo-random Sequence Scrambling in Massive MIMO System
Journal of Harbin University of Science and Technology, 2021 In this paper，a scheme of joint polar coordinate pilot assignment and pseudo-random code pilot design is proposed to solve the pilot contamination caused by the reuse of the same pilot sequence in each cell of the Massive MIMO system.
HAN Zhi-yu +4 more
doaj +1 more source
Pseudo-code for network formation.
, 2018 Pseudo-code for network formation.
Ying Xie (50016) +3 more
core +1 more source
Annals of Clinical and Translational Neurology, EarlyView.ABSTRACT Objective Neurochemical levels measured by brain MR spectroscopy (MRS) have been proposed as endpoints for clinical trials in early‐stage spinocerebellar ataxia (SCA) trials. We tested their trial‐readiness by quantifying neurochemicals in three affected brain regions in early‐stage cohorts of SCA2 and SCA3, examining their reproducibility in ...
James M. Joers +19 more
wiley +1 more source