Results 11 to 20 of about 101,028 (214)

Detecting gravitational waves from highly eccentric compact binaries [PDF]

open access: yes, 2014
In dense stellar regions, highly eccentric binaries of black holes and neutron stars can form through various n-body interactions. Such a binary could emit a significant fraction of its binding energy in a sequence of largely isolated gravitational wave ...
McWilliams, Sean T.   +2 more
core   +3 more sources

A chaotic spread spectrum system for underwater acoustic communication [PDF]

open access: yes, 2017
The work is supported in part by NSFC (Grant no.
Bai, Chao   +4 more
core   +1 more source

Symbol and Bit Error Rates Analysis of Hybrid PIM-CDMA

open access: yesEURASIP Journal on Wireless Communications and Networking, 2005
A hybrid pulse interval modulation code-division multiple-access (hPIM-CDMA) scheme employing the strict optical orthogonal code (SOCC) with unity and auto- and cross-correlation constraints for indoor optical wireless communications is proposed. In this
Ghassemlooy Z., See C. K.
doaj   +2 more sources

A Multi-Sensor Matched Filter Approach to Robust Segmentation of Assisted Gait

open access: yesSensors, 2018
Individuals with mobility impairments related to age, injury, or disease, often require the help of an assistive device (AD) such as a cane to ambulate, increase safety, and improve overall stability.
Satinder Gill, Nitin Seth, Erik Scheme
doaj   +1 more source

Hybrid photonic circuit for multiplexed heralded single photons [PDF]

open access: yes, 2014
A key resource for quantum optics experiments is an on-demand source of single and multiple photon states at telecommunication wavelengths. This letter presents a heralded single photon source based on a hybrid technology approach, combining high ...
Alibart, Olivier   +9 more
core   +4 more sources

Noise suppression using optimum filtering of OCs generated by a multiport encoder/decoder [PDF]

open access: yes, 2012
We propose a novel receiver configuration using an extreme narrow band-optical band pass filter (ENB-OBPF) to reduce the multiple access interference (MAI) and beat noises in an optical code division multiplexing (OCDM) transmission.
Cincotti, Gabriella   +4 more
core   +2 more sources

Multi-stage Antenna Selection for Adaptive Beamforming in MIMO Arrays

open access: yes, 2019
Increasing the number of transmit and receive elements in multiple-input-multiple-output (MIMO) antenna arrays imposes a substantial increase in hardware and computational costs.
Aboutanios, Elias   +2 more
core   +1 more source

Analysis of Hybrid Spectrum Sensing in Cognitive Radio Using Hybrid Approaches

open access: yesCommunications
Cognitive radio (CR) technology enables dynamic spectrum access to meet the growing demand for wireless communication. This study investigates spectrum sensing methods, specifically energy detection (ED) and matched filter detection (MFD), within hybrid ...
Haribhau Ashok Shinde, Sandeep Garg
doaj   +1 more source

Sensitivity Comparison of Searches for Binary Black Hole Coalescences with Ground-based Gravitational-Wave Detectors [PDF]

open access: yes, 2014
Searches for gravitational-wave transients from binary black hole coalescences typically rely on one of two approaches: matched filtering with templates and morphology-independent excess power searches.
Cadonati, Laura   +9 more
core   +2 more sources

Knowledge-infused and Consistent Complex Event Processing over Real-time and Persistent Streams

open access: yes, 2016
Emerging applications in Internet of Things (IoT) and Cyber-Physical Systems (CPS) present novel challenges to Big Data platforms for performing online analytics. Ubiquitous sensors from IoT deployments are able to generate data streams at high velocity,
Prasanna, Viktor   +2 more
core   +1 more source

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