Results 1 to 10 of about 1,105 (131)

Formation of a signal with Hartley amplitude-phase modulation as the sum of two signals with Hartley amplitude modulation

open access: yesTrudy Odesskogo Politehničeskogo Universiteta
The paper presents the results of the research, which outcome in the development of a theoretical justification for a new type of modulation – Hartley amplitude-phase modulation.
Олександр Борисович Коханов
doaj   +8 more sources

Performance Improvement of Multi-UserMC-CDMA system Using Discrete Hartly Transform Mapper [PDF]

open access: yesEngineering and Technology Journal, 2013
Future wireless communication systems must be able to accommodate a large number of users and simultaneously to provide the high data rates at the required quality of service. In this paper a method is proposed to perform the N-Discrete Hartley Transform
Ali T. Shaheen
doaj   +3 more sources

Dynamic Updating of Cognitive Maps via Traces of Experience in the Subiculum. [PDF]

open access: yesHippocampus
ABSTRACT In the classical view of hippocampal function, the subiculum is assigned the role of the output layer. In spatial paradigms, some subiculum neurons manifest as so‐called boundary vector cells (BVCs), firing in response to boundaries at specific allocentric directions and distances.
Wang F, Bicanski A.
europepmc   +2 more sources

HARTLEY AMPLITUDE MODULATION

open access: yesSworld-Us Conference proceedings, 2023
A new type of modulation has been developed - Hartley amplitude modulation(AMH), which is distinguished by the presence of two orthogonal components of the amplitude- modulated signal, which allows increasing the efficiency of AMX up to 90 ...
A.B. Kokhanov   +5 more
openaire   +1 more source

Hippocampal-Prelimbic Coupling During Context-Dependent Extinction Retrieval in Rats. [PDF]

open access: yesHippocampus
ABSTRACT After fear conditioning, repeated presentation of the conditioned stimulus (CS) alone produces a context‐dependent extinction of learned fear. The hippocampus has a critical role in this process, but the mechanism by which contextual information encoded by the hippocampus leads to fear suppression is unknown.
Mourão FAG, Totty MS, Tuna T, Maren S.
europepmc   +2 more sources

The Effect of EMI Generated from Spread-Spectrum-Modulated SiC-Based Buck Converter on the G3-PLC Channel [PDF]

open access: yes, 2021
Power line communication (PLC) is increasingly emerging as an important communication technology for the smart-grid environment. As PLC systems use the existing infrastructure, they are always exposed to conducted electromagnetic interference (EMI) from ...
Thomas, Dave   +12 more
core   +1 more source

Investigating Cortical Responses to Noise-Vocoded Speech in Children with Normal Hearing Using Functional Near-Infrared Spectroscopy (fNIRS) [PDF]

open access: yes, 2021
Whilst functional neuroimaging has been used to investigate cortical processing of degraded speech in adults, much less is known about how these signals are processed in children. An enhanced understanding of cortical correlates of poor speech perception
Wiggins, Ian M.   +4 more
core   +4 more sources

Low-PAPR Asymmetrically Clipped Optical OFDM for Intensity-Modulation/Direct-Detection Systems

open access: yesIEEE Photonics Journal, 2015
In this paper, we propose a discrete Hartley transform (DHT)-spread technique for peak-to-average power ratio (PAPR) reduction in a DHT-based asymmetrically clipped optical orthogonal frequency-division multiplexing (ACO-OFDM) system.
Ji Zhou, Yaojun Qiao
doaj   +1 more source

Bispectrum Analysis of Motor Current Signals for Fault Diagnosis of Reciprocating Compressors [PDF]

open access: yes, 2009
The induction motor is the most common driver in industry and has been previously proposed as a means of inferring the condition of an entire equipment train, predominantly through the measurement and processing of power supply parameters.
Gu, Fengshou   +10 more
core   +1 more source

Nitric oxide-mediated modulation of the murine locomotor network [PDF]

open access: yes, 2014
CD was supported by a BBSRC studentshipSpinal motor control networks are regulated by neuromodulatory systems to allow adaptability of movements. The present study aimed to elucidate the role of nitric oxide (NO) in the modulation of mammalian spinal ...
Miles, Gareth Brian   +3 more
core   +1 more source

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