An enhanced GNU Radio flow is presented that seamlessly augments the standard GNU Radio framework with modules that reside in FPGAs, yet preserves the GNU Radio dynamics by providing full-custom radio hardware/software structures in seconds. By delegating portions of a GNU Radio flow graph to networked FPGAs, a larger class of software-defined radios can be implemented. Assembly of the signal p...

We present an overview of the free GNU Network Object Model Environment (GNOME). GNOME is a suite of X11 GUI applications that provides joy to users and hackers alike. It has been designed for extensibility and automation by using CORBA and scripting languages throughout the code. GNOME is licensed under the terms of the GNU GPL and the GNU LGPL and has been developed on the Internet by a loose...

Utwór udoste֒pniany na licencji Creative Commons: uznanie autorstwa, na tych samych warunkach. Udziela sie֒ zezwolenia do kopiowania, rozpowszechniania i/lub modyfikacji treści utworu zgodnie z zasadami w/w licencji opublikowanej przez Creative Commons. Licencja wymaga podania oryginalnego autora utworu, a dystrybucja materia lów pochodnych może odbywać sie֒ tylko na tych samych warunkach (nie moż...

An overview of GNU EPrints 2. EPrints is free software which creates a web based archive and database of scholarly output and is intended for use by a university or university department. This article contains a description of the features and design philosophy of the software including OAI-PMH (Open Archive Initiative Protocol for Metadata Harvesting), internationalisation of the interface via...

GNU Mailman is a mailing list management system that has been in production use since 1998. In December 2002, a version 2.1 was released containing many new features. This paper will describe one of the most important – Mailman 2.1’s internationalization support. Presented here are the tools that were built and the approaches Mailman took to marking and translating text, as well a review of som...

The UNIX grep utility searches the input files selecting lines matching one or more patterns. Searching for patterns in text is an important operation in a number of domains, including program comprehension and software maintenance, structured text databases, indexing file systems, and searching natural language texts. Such a wide range of uses inspired the development of variations of the orig...

In this paper, we present a synchronous event stream model overlaid on the existing GNU Radio streaming dataflow model. GNU Radio has long utilized a traditional static streaming dataflow model to interconnect modular signal processing blocks. While this model fits many radio and signal processing applications well, GNU Radio and the applied signal processing community face several pressing nee...

Wideband spectrum sensing capability can be enabled in GNU Radio, which is an open source software radio platform. In order to improve the detection performance of GNU Radio in practice, we studied its approach of wideband spectrum sensing, i.e., multistep frequency-domain energy detection. We first gave a detailed analysis of the functions and implementation details in its wideband spectrum se...

Mark Galassi Los Alamos National Laboratory Jim Davies Department of Computer Science, Georgia Institute of Technology James Theiler Astrophysics and Radiation Measurements Group, Los Alamos National Laboratory Brian Gough Network Theory Limited Gerard Jungman Theoretical Astrophysics Group, Los Alamos National Laboratory Patrick Alken Department of Physics, University of Colorado at Boulder Mi...