Results 41 to 50 of about 882,304 (195)

Simultaneous Absolute Timing of the Crab Pulsar at Radio and Optical Wavelengths [PDF]

, 2008
The Crab pulsar emits across a large part of the electromagnetic spectrum. Determining the time delay between the emission at different wavelengths will allow to better constrain the site and mechanism of the emission. We have simultaneously observed the
A. Golden, A. Stankov, C. Erd, Cocke, Cognard, D. D. E. Martin, Dyks, Eikenberry, Golden, Hankins, Hewish, Hobbs, I. Cognard, J. A. Stüwe, Kanbach, Karpov, Kuiper, Lyne, Oosterbroek, P. Verhoeve, Percival, R. Schulz, Ramachandran, Romani, Romani, Rots, Shearer, Sollerman, Staelin, T. Ho, T. Oosterbroek, Takata   +31 more
core   +2 more sources

Modulation classification based on denoising autoencoder and convolutional neural network with GNU radio

The Journal of Engineering, 2019
In this article, a machine learning method to classify signal with Gaussian noise based on denoising auto encoder (DAE) and convolutional neural network (CNN) is proposed. We combine denoising autoencoder's denoising ability with CNN's feature extraction
Jun Wang, Wenfeng Wang, Feixiang Luo, Shaoming Wei   +3 more
doaj   +1 more source

Real-Time Inter-Vehicle Data Fusion Based on a New Metric for Evidence Distance in Autonomous Vehicle Systems

Applied Sciences, 2020
Safety is a major concern for autonomous vehicle driving. The autonomous vehicles relying solely on ego-vehicle sensors have limitations in dealing with collisions.
In-Sop Cho, Yuna Lee, Seung Jun Baek
doaj   +1 more source

DSS-13 26-meter antenna upgraded radiometer system [PDF]

, 1992
The Deep Space Station (DSS)-13 26-m antenna radiometer system was upgraded with an IBM-compatible computer-controlled configuration with improved supporting hardware and software.
Bury, G., Skjerve, L., Stelzried, C. T.
core   +1 more source

Software Holography: Interferometric Data Analysis for the Challenges of Next Generation Observatories

, 2008
Next generation radio observatories such as the MWA, LWA, LOFAR, CARMA and SKA provide a number of challenges for interferometric data analysis. These challenges include heterogeneous arrays, direction-dependent instrumental gain, and refractive and ...
Bhatnagar, Clark, Condon, Cornwell, Cornwell, Cornwell, Lonsdale, Matejek, McEwen, Michael Matejek, Miguel F. Morales, Mitchell, Ng, Sault, Sault, Scott, Tegmark, Tegmark   +17 more
core   +1 more source

Mixer linearisation for software defined radio applications [PDF]

, 2002
The inherent non-linearity of mixers is particularly acute in broadband receiver design for software defined radio (SDR) applications. Here, the receiver frontend ‘sees’ not only the wanted channel, but also a number of nearby signals.
Beach, MA, MacLeod, JR, Nesimoglu, T, Warr, PA   +3 more
core   +2 more sources

Channel selection requirements for Bluetooth receivers using a simple demodulation algorithm [PDF]

, 2001
In our Software Defined Radio (SDR) project we combine two different types of standards, Bluetooth and HiperLAN/2, on one common hardware platform. SDR system research aims at the design, implementation and deployment of flexible radio systems that are ...
Hoeksema, Fokke, Schiphorst, Roel, Slump, Kees   +2 more
core   +2 more sources

Fronthaul evolution: From CPRI to Ethernet [PDF]

, 2015
It is proposed that using Ethernet in the fronthaul, between base station baseband unit (BBU) pools and remote radio heads (RRHs), can bring a number of advantages, from use of lower-cost equipment, shared use of infrastructure with fixed access networks,
Anthony Magee, Doetsch, Gomes, Huang, Irmer, Jungnickel, Khanzadi, Nathan J. Gomes, Park, Peter Turnbull, Philippe Chanclou, Rost, Volker Jungnickel   +12 more
core   +1 more source

Cross layer protocol architecture for spectrum‐based routing in cognitive radio networks

IET Networks
New cell phone services and apps consume more spectrum. Wireless spectrum allows services and apps to communicate with one another. Wi‐Fi quality is improved via smart spectrum usage and new CRT services. The use of spectrum is beneficial.
R. Sri Uma Suseela, Korlapati Satyanarayana Murthy, Hima Bindu Valiveti, Mohammad Akhtaruzzaman   +3 more
doaj   +1 more source

Software-Defined Radio FPGA Cores: Building towards a Domain-Specific Language

International Journal of Reconfigurable Computing, 2017
This paper reports on the design and implementation of an open-source library of parameterizable and reusable Hardware Description Language (HDL) Intellectual Property (IP) cores designed for the development of Software-Defined Radio (SDR) applications ...
Lekhobola Tsoeunyane, Simon Winberg, Michael Inggs   +2 more
doaj   +1 more source