Design of sofware defined radio (SDR) in 88 MHz to 800 MHz multiband frequency based Audio Receipt System at Raspberry

2020 ◽  
Vol 7 (2) ◽  
Author(s):  
Heroe Wijanto
Keyword(s):  
Software Defined Radio ◽  
Technological Development ◽  
Major Influence ◽  
Light Weight ◽  
Frequency Range ◽  
Radio Communication ◽  
Technology Platform ◽  
General Radio ◽  
Amateur Radio ◽  
The Future

Abstract – Technology radio communication is currently developing, initially SDR (Software Defined Radio) is used by amateur radio to communicate , but with the presence of the SDR technology will have a major influence on technological development in the field of radio communication. SDR technology can replace several devices in a certain frequency range and mode, especially on military tactical equipment, so that it has a light weight, smaller dimensions and is reconfigurable in addition to this (multiband). In the future this technology will be very necessary to overcome various kinds of obstacles in many of these things. Because of that Software Defined Radio (SDR), problems in the technology platform can be easily other than that in terms of education its use can facilitate learning about the system general radio communication.   Keywords : Software Defined Radio (SDR), reconfigurable, multiband

‘Newness which never perishes’? Schoenberg’s ambivalent reception of Haydn

2010 ◽  
Vol 51 (1-2) ◽  
pp. 215-224
Author(s):  
Alexander Carpenter
Keyword(s):  
The Other ◽  
Major Influence ◽  
Musical Style ◽  
The Past ◽  
Other Hand ◽  
The Future ◽  
Music Tradition

This paper explores Arnold Schoenberg’s curious ambivalence towards Haydn. Schoenberg recognized Haydn as an important figure in the German serious music tradition, but never closely examined or clearly articulated Haydn’s influence and import on his own musical style and ethos, as he did with many other major composers. This paper argues that Schoenberg failed to explicitly recognize Haydn as a major influence because he saw Haydn as he saw himself, namely as a somewhat ungainly, paradoxical figure, with one foot in the past and one in the future. In his voluminous writings on music, Haydn is mentioned by Schoenberg far less frequently than Bach, Mozart, or Beethoven, and his music appears rarely as examples in Schoenberg’s theoretical texts. When Schoenberg does talk about Haydn’s music, he invokes — with tacit negativity — its accessibility, counterpoising it with more recondite music, such as Beethoven’s, or his own. On the other hand, Schoenberg also praises Haydn for his complex, irregular phrasing and harmonic exploration. Haydn thus appears in Schoenberg’s writings as a figure invested with ambivalence: a key member of the First Viennese triumvirate, but at the same time he is curiously phantasmal, and is accorded a peripheral place in Schoenberg’s version of the canon and his own musical genealogy.

scholarly journals Methods in field chronobiology

2017 ◽  
Vol 372 (1734) ◽  
pp. 20160247 ◽  
Author(s):  
Davide M. Dominoni ◽  
Susanne Åkesson ◽  
Raymond Klaassen ◽  
Kamiel Spoelstra ◽  
Martin Bulla
Keyword(s):  
Technological Development ◽  
Monitoring Systems ◽  
Migratory Restlessness ◽  
Biological Organization ◽  
Rapid Improvement ◽  
Free Living ◽  
The Future ◽  
In The Wild ◽  
Temporal Aspect ◽  
Different Levels

Chronobiological research has seen a continuous development of novel approaches and techniques to measure rhythmicity at different levels of biological organization from locomotor activity (e.g. migratory restlessness) to physiology (e.g. temperature and hormone rhythms, and relatively recently also in genes, proteins and metabolites). However, the methodological advancements in this field have been mostly and sometimes exclusively used only in indoor laboratory settings. In parallel, there has been an unprecedented and rapid improvement in our ability to track animals and their behaviour in the wild. However, while the spatial analysis of tracking data is widespread, its temporal aspect is largely unexplored. Here, we review the tools that are available or have potential to record rhythms in the wild animals with emphasis on currently overlooked approaches and monitoring systems. We then demonstrate, in three question-driven case studies, how the integration of traditional and newer approaches can help answer novel chronobiological questions in free-living animals. Finally, we highlight unresolved issues in field chronobiology that may benefit from technological development in the future. As most of the studies in the field are descriptive, the future challenge lies in applying the diverse technologies to experimental set-ups in the wild. This article is part of the themed issue ‘Wild clocks: integrating chronobiology and ecology to understand timekeeping in free-living animals’.

scholarly journals New Training Schemes for the Future Education in Transport Sector

2018 ◽  
Vol 14 (1) ◽  
pp. 11-17
Author(s):  
Dana Sitányiová ◽  
Jean-Christophe Meunier ◽  
Jaroslav Mašek
Keyword(s):  
Technological Development ◽  
Transport Sector ◽  
Training Methods ◽  
Social Sector ◽  
Training And Education ◽  
Qualified Personnel ◽  
The Future ◽  
Training Schemes ◽  
Future Education ◽  
Mid Term Results

Abstract Transport is a social sector that is rapidly developing, changing and being influenced to the maximum extent by the technological development and innovation, among others, thus facing problems in staffing its several domains with appropriate and qualified personnel. This fact, makes the need for changes in training and education of future transport professionals. SKILLFUL project vision is to identify the skills and competences needed by the transport workforce of the future and define the training methods and tools to meet them. Paper focuses on mid-term results of the project.

scholarly journals Redefining Doctrine Concepts in Modern Military Actions

2018 ◽  
Vol 23 (1) ◽  
pp. 25-33
Author(s):  
Mihai-Marcel Neag
Keyword(s):  
National Security ◽  
Theoretical Approach ◽  
Reference Point ◽  
Technological Development ◽  
The State ◽  
The Future ◽  
National Power ◽  
Mosaic Approach ◽  
The Way

Abstract The mosaic approach to conflict requires redefinition of some doctrinal concepts that can influence the way in which the response to the risks and threats to the state of security, the future of military actions and the acceptance that the technological development will be a factor for the success of the wars future. The issues addressed could be important elements in the architecture of a possible future strategic concept of integrated use of the basic elements of national power - diplomatic, informational, military and economic. At the same time, the results of this theoretical approach can contribute, as a reference point, to proposing viable and innovative doctrinal and operational solutions to counteract aggressions to national security, regardless of their nature or origin.

scholarly journals In-Orbit Measurements and Analysis of Radio Interference in the UHF Amateur Radio Band from the LUME-1 Satellite

2021 ◽  
Vol 13 (16) ◽  
pp. 3252
Author(s):  
Gara Quintana-Diaz ◽  
Torbjörn Ekman ◽  
José Miguel Lago Agra ◽  
Diego Hurtado de Mendoza ◽  
Alberto González Muíño ◽  
...  
Keyword(s):  
Coefficient Of Variation ◽  
Communication System ◽  
Software Defined Radio ◽  
Average Power ◽  
The Arctic ◽  
Time Variability ◽  
Radio Interference ◽  
Temporal Behaviour ◽  
Amateur Radio ◽  
Radio Band

Radio interference in the uplink makes communication to satellites in the UHF amateur radio band (430–440 MHz) challenging for any satellite application. Interference measurements and characterisation can improve the robustness and reliability of the communication system design. Most published results focus on average power spectrum measurements and heatmaps. We apply a low complexity estimator on an SDR (Software-Defined Radio) to study the interference’s dispersion and temporal variation on-board a small satellite as an alternative. Measuring the Local Mean Envelope (LME) variability with different averaging window lengths enables the estimation of time variability of the interference. The coefficient of variation for the LME indicates how much the signals vary in time and the spread in magnitudes. In this article, theoretical analysis, simulations, and laboratory results were used to validate this measurement method. In-orbit measurements were performed on-board the LUME-1 satellite. Band-limited interference with pulsed temporal behaviour and a high coefficient of variation was detected over North America, Europe, and the Arctic, where space-tracking radars are located. Wide-band pulsed interference with high time variability was also detected over Europe. These measurements show why operators that use a communication system designed for Additive White Gaussian Noise (AWGN) at power levels obtained from heatmaps struggle to command their satellites.

scholarly journals Præventive potentialer – Populærkulturens overvejelser om overvågning

2018 ◽  
pp. 99-112
Author(s):  
Lone Koefoed Hansen ◽  
Christopher Gad
Keyword(s):  
Popular Culture ◽  
Technological Development ◽  
Entry Point ◽  
Surveillance Systems ◽  
Research Project ◽  
Intelligent Surveillance ◽  
Technological Research ◽  
The Future ◽  
Minority Report ◽  
Basic Level

This article uses the movie Minority Report (2002) as an entry point for discussing conceptions of surveillance technologies and their preventive capacities. The technological research project Intelligent Surveillance Systems located in Belfast shares a vision with MR: that it is possible to construct surveillance systems that are able to foresee criminal acts and thus to prevent them from happening. We argue that the movie exemplifies that technological development and popular culture share dreams, ideas and visions and that on a very basic level, popular culture informs technological development and vice versa. The article explores this relation and argues that popular culture provides analytic insight on important discussions about surveillance and the (future) capacities of technology.

Universal Software Radio Peripheral/GNU Radio-Based Implementation of a Software-Defined Radio Communication System

2019 ◽  
pp. 227-240
Author(s):  
Ehsan Sheybani
Keyword(s):  
Communication System ◽  
Software Defined Radio ◽  
Software Radio ◽  
Block Code ◽  
Radio Station ◽  
Frequency Change ◽  
Gnu Radio ◽  
Radio Communication ◽  
Space Communications ◽  
Radio Communication System

Challenges involved in space communications across wireless channels call for new approaches to radio systems. Due to the growing need for frequency change in modern wireless systems, an adaptive radio system has the highest demand. Software-defined radios (SDR) offer this type of adaptivity as well as compatibility with other standard platforms such as USRP/GNU radio. Despite limitations of this approach due to hardware components, viable modeling and simulation as well as deployable systems are possible using this platform. This chapter presents a detailed implementation procedure for a USRP/GNU radio-based SDR communication system that can be used for practical experiments as well as an academic lab in this field. In this experiment the USRP has been configured to receive signal from a local radio station using the BasicRX model daughterboard. The programmable USRP executes Python block code implemented in the GNU Radio Companion (GRC) on Ubuntu OS.

Secure Baseband Techniques for Generic Transceiver Architecture for Software-Defined Radio

2021 ◽  
pp. 1961-1983
Author(s):  
Nikhil Kumar Marriwala ◽  
Om Prakash Sahu ◽  
Anil Vohra
Keyword(s):  
Communication System ◽  
Software Defined Radio ◽  
Main Part ◽  
Software Radio ◽  
Reliable Communication ◽  
Main Interest ◽  
The Future ◽  
Forward Error ◽  
Programmable Hardware

Software Defined Radio (SDR) systems are the ones which can adapt to the future-proof solution and it covers both existing and emerging standards. An SDR has to possess elements of reconfigurability, intelligence and software programmable hardware. The main interest in any communication group is the sure sending of signals of info from a transmitter to a receiver. The signals are transmitted via a guide who corrupts the signal. To ensure reliable communication forward error-correcting (FEC) codes are the main part of a communication system. This chapter will discuss an SDR system built using LabVIEW for a Generic Transceiver. This chapter has covered emerging software radio standards and the technologies being used to specify and support them.

Stepping back to move forward: Centering capital in discussions of technology and the future of work

2020 ◽  
Vol 5 (3-4) ◽  
pp. 129-133
Author(s):  
Benjamin Shestakofsky
Keyword(s):  
Artificial Intelligence ◽  
New Technologies ◽  
Technological Development ◽  
Structural Features ◽  
Robotic Systems ◽  
Future Of Work ◽  
Technological Unemployment ◽  
The Future ◽  
Constructivist Approaches ◽  
The Relationship

Some researchers have warned that advances in artificial intelligence will increasingly allow employers to substitute human workers with software and robotic systems, heralding an impending wave of technological unemployment. By attending to the particular contexts in which new technologies are developed and implemented, others have revealed that there is nothing inevitable about the future of work, and that there is instead the potential for a diversity of models for organizing the relationship between work and artificial intelligence. Although these social constructivist approaches allow researchers to identify sources of contingency in technological outcomes, they are less useful in explaining how aims and outcomes can converge across diverse settings. In this essay, I make the case that researchers of work and technology should endeavor to link the outcomes of artificial intelligence systems not only to their immediate environments but also to less visible—but nevertheless deeply influential—structural features of societies. I demonstrate the utility of this approach by elaborating on how finance capital structures technology choices in the workplace. I argue that investigating how the structure of ownership influences a firm’s technology choices can open our eyes to alternative models and politics of technological development, improving our understanding of how to make innovation work for everyone instead of allowing the benefits generated by technological change to be hoarded by a select few.

scholarly journals Implementation of Transceiver module for SDR system using ADALM PLUTO platform

2018 ◽  
Vol 7 (4.6) ◽  
pp. 279
Author(s):  
Sowjanya. P. ◽  
Satyanarayana P.
Keyword(s):  
Software Defined Radio ◽  
Large Scale ◽  
Technology Development ◽  
New Technology ◽  
Software Radio ◽  
Radio Station ◽  
Radio Communication ◽  
Radio Stations ◽  
Open Standard ◽  
Software Modules

Software Defined Radio (SDR) provides a comprehensive radio communication platform, based on which new technology can be used through software update. This leads to a large-scale reduction in expansion costs and enables the product to maintain technology development. The SDR platform can be set up with an open, standard, and programmable hardware platform, based on which the functions of the radio can be perceived by adding appropriate software modules. In this platform, the transformation and expansion of the radio functions are done in a software version without the need for a modification of the equipment. Such software radio station can easily communicate with the current or upcoming radio stations. In this article, we analyze SDR evolution and various platforms and implement various modulation techniques with the aim of successfully transferring a message wirelessly over-the-air using ADALM-PLUTO SDR platform by Analog Devices. 

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