Results 61 to 70 of about 2,923 (181)
Adaptive Subchip Multipath Resolving for Wireless Location Systems
Reliable positioning of cellular users in a mobile environment requires accurate resolving of overlapping multipath components. However, this task is difficult due to fast channel fading conditions and data ill-conditioning, which limit the performance ...
Yousef Nabil R +2 more
doaj +1 more source
This work presents a bio‐inspired computing framework for Parkinson's disease analog recognition using electroencephalogram signals. Temporally encoded EEG features stimulate a mycelium‐inspired memristive reservoir, where disease‐related patterns emerge through physical spatiotemporal dynamics.
Ioannis K. Chatzipaschalis +5 more
wiley +1 more source
ABSTRACT A conjugate operator pair is introduced for wave‐equation Kirchhoff modelling and migration, formulated as time‐space partial differential equations. The operator pair allows for iterative linearized waveform inversion and supports the reconstruction of angle‐dependent reflectivity images. The proposed forward modelling operator represents the
Wei Zhang, Mauricio D. Sacchi
wiley +1 more source
Error Performance of DDPSK Receiver in the Presence of Composite Fading
We investigate the justification for implementing double differential phase-shift keying (DDPSK) instead of differential phase-shift keying (DPSK) in the presence of carrier frequency offset (CFO) over wireless channels affected by thermal noise ...
Goran T. Djordjevic +3 more
doaj +1 more source
Detection Performance of Polarization and Spatial Diversities for Indoor GNSS Applications
Multipath fading in the form of signal power fluctuation poses a formidable challenge to GNSS signal detection in harsh multipath environments such as indoors.
Mohammadreza Zaheri +3 more
doaj +1 more source
Closed-Form Capacity Reliability Analysis of Multiuser MIMO System in the Presence of Generalized Multipath Fading. [PDF]
Gvozdarev AS, Alishchuk AM, Kazakova MA.
europepmc +1 more source
Multipath Detection Using Boolean Satisfiability Techniques
A new technique for multipath detection in wideband mobile radio systems is presented. The proposed scheme is based on an intelligent search algorithm using Boolean Satisfiability (SAT) techniques to search through the uncertainty region of the multipath
Fadi A. Aloul, Mohamed El-Tarhuni
doaj +1 more source
Research on Passive Troposcatter Location System [PDF]
Electromagnetic (EM) wave of enemy radar propagated by troposcatter can be utilized for beyond line-of-sight (b-LoS) location. To provide theoretical basis for passive troposcatter location system, channel characteristics including propagation loss ...
Z. Liu, X. H. Chen, Q. Liu
doaj
Capacity of Time-Hopping PPM and PAM UWB Multiple Access Communications over Indoor Fading Channels
The capacity of time-hopping pulse position modulation (PPM) and pulse amplitude modulation (PAM) for an ultra-wideband (UWB) communication system is investigated based on the multipath fading statistics of UWB indoor wireless channels.
T. Aaron Gulliver, Hao Zhang
doaj +1 more source
One of the main problems in modern wireless telecommunication systems and networks is the transmission and reception of signals in a multipath environment.
Виктория Владимировна Науменко +3 more
doaj +1 more source

