Products related to Signal:
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Smartphones, Current Events and Mobile Information Behavior : Consuming, Reacting, Sharing, and Connecting through News
Smartphones and Information on Current Events provides unprecedented insights into young people’s news consumption patterns and the ecology of mobile news.Advancing our knowledge of mobile behaviour, the book also highlights the ways in which mobile news impacts the lives of the general public.Using a multi-faceted research model on mobile news consumption behaviour, Oh and Tang examined a wide spectrum of mobile news consumption activities, outlined the key characteristics of mobile news, as well as captured users’ near real-time evaluation of and emotional reactions to news stories.The book also shows that the process of using smartphones to receive, read, find, share, and store news stories has resulted in new behavioural patterns that enable people to consume news in a multifaceted way.Analyzing the extent and various methods of mobile news sharing can, Oh and Tang argue, help us understand how such exchanges reshape contemporary society.Demonstrating that mobile news consumption is now an integral part of people’s daily lives, the book clearly shows that its impact on people’s day-to-day activities, and their political and social lives, cannot be underestimated.Smartphones and Information on Current Events will be useful to scholars, students, and practitioners who are studying library and information science, journalism and media, digital communication, user behaviour, information technology, human-computer interaction, marketing, political science, psychology, and sociology.
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Sensor Signal and Information Processing II
In the current age of information explosion, newly invented technological sensors and software are now tightly integrated with our everyday lives. Many sensor processing algorithms have incorporated some forms of computational intelligence as part of their core framework in problem solving. These algorithms have the capacity to generalize and discover knowledge for themselves and learn new information whenever unseen data are captured. The primary aim of sensor processing is to develop techniques to interpret, understand, and act on information contained in the data. The interest of this book is in developing intelligent signal processing in order to pave the way for smart sensors. This involves mathematical advancement of nonlinear signal processing theory and its applications that extend far beyond traditional techniques. It bridges the boundary between theory and application, developing novel theoretically inspired methodologies targeting both longstanding and emergent signal processing applications. The topic ranges from phishing detection to integration of terrestrial laser scanning, and from fault diagnosis to bio-inspiring filtering. The book will appeal to established practitioners, along with researchers and students in the emerging field of smart sensors processing.
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Speech Signal Enhancement by Information Combining
Mobile phones as well as tablets are omnipresent and belong to everyday life.Today audiovisual communication takes place at different locations and in a large variety of acoustic environments.In consequence, the intelligibility as well as the quality of speech may significantly be degraded by ambient background noise.In order to improve speech intelligibility and to ensure a convenient communication with high audio quality, speech enhancement techniques are required.In this thesis all critical components contributing to the enhancement of the up-link signal are addressed:• signal capturing at the acoustic front-end with a new near field beamformer• new codebook based speech and noise estimation procedure generating and exploiting reliability information, and• actual noise reduction exploiting spectral dependencies of human speech. For the acoustic front-end of the digital processing chain a novel concept for the filter optimization of a near field beamformer is introduced.The optimization scheme allows to closely approximate a predefined reception characteristic which can be freely chosen according to the application.The output of the beamformer provides a pre-enhanced signal with improved SNR for subsequent single-microphone based speech enhancement. Single-microphone noise reduction usually relies on statistical properties of speech and noise.In general, the noise is assumed to be stationary or only slightly time-varying, which is in practice often not fulfilled.Due to imprecise noise estimation, single-microphone systems are prone to unpleasant artifacts that are called musical tones.In this context different Information Combining methods, merging various estimates, are presented which address specifically the problem of non-stationary noise signals, leading to a significant improved estimation accuracy.On the one hand, the proposed Information Combining is used with respect to spectral dependencies of human speech.On the other hand, it merges the best of several speech and noise estimates depending on their reliability.The necessary estimates are provided by a new statistical noise estimator as well as a codebook driven speech and noise estimation algorithm.The achieved estimation quality opens up the possibility to close the gap between the conflicting goals of high noise attenuation, low speech distortion, and the prevention of undesired musical tone artifacts.Finally, the practical aspects of the proposed enhancement systems are considered and discussed with two implemented real-time demonstrators.
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4-20MA Signal Generator 4-20MA Current Generator Adjustable Analog Quantity Current Signal Generator
4-20MA Signal Generator 4-20MA Current Generator Adjustable Analog Quantity Current Signal Generator
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Why is the broadcast signal of the German radio time signal not working?
The broadcast signal of the German radio time signal is not working due to technical issues or maintenance work on the transmission equipment. It could also be a result of interference or disruptions in the broadcasting system. Additionally, weather conditions or other external factors may be affecting the signal transmission.
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What is this radio signal?
This radio signal is known as the Wow! signal, which was a strong narrowband radio signal detected by astronomer Jerry R. Ehman on August 15, 1977, while working on a SETI project at Ohio State University's Big Ear radio telescope. The signal lasted for 72 seconds and came from the direction of the constellation Sagittarius. It is considered one of the most intriguing potential instances of extraterrestrial communication due to its unique characteristics and the fact that it has never been detected again.
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How can one wirelessly broadcast a coaxial signal?
To wirelessly broadcast a coaxial signal, you can use a device called a wireless transmitter. This device connects to the coaxial cable and converts the signal into a format that can be transmitted wirelessly, such as Wi-Fi or Bluetooth. The wireless transmitter then broadcasts the signal to a receiver, which can be connected to another coaxial cable or a device that can receive the signal. This allows you to transmit the coaxial signal wirelessly over a certain distance.
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Are TV and radio stations obligated to broadcast news?
TV and radio stations are not legally obligated to broadcast news, but many choose to do so as part of their commitment to serving the public interest. In some countries, there may be regulations or licensing requirements that mandate a certain amount of news programming, but this varies by jurisdiction. Ultimately, the decision to include news in their programming is up to the individual stations and their management.
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Broadcast Journalism : Techniques of Radio and Television News
Now in its 8th edition, Broadcast Journalism continues to be an essential text on the production of news broadcasting and the practical skills needed. It includes not only basic techniques and classic examples for the production of radio and TV news, but also new technology and the latest case studies.The fundamental skills of interviewing, news writing and production now have to cope with the prevalence of Fake News and Deep Fakes and verifying content in an endless flow of social media.This edition also includes newsgathering with mobile devices, live reporting and using data and graphics.There are dozens of new images and links for downloads and further reading, plus end-of-chapter exercises and tutor notes. This continues to be an indispensable textbook for broadcast journalism and communications students looking for an in-depth guide to the industry.
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DAB/DAB+ Radio Receiver 2.4 Inch LCD Bluetooth MP3 Player FM Radio Car Digital Signal Broadcast
DAB/DAB+ Radio Receiver 2.4 Inch LCD Bluetooth MP3 Player FM Radio Car Digital Signal Broadcast
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4-20mA signal generator 24V current voltage signal generator 4-20mA signal source transmitter 0-10V
very nice pirce with quality,ship out first time.syi
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Ezonetronics DAB Radio Receiver In Car with Screen Stereo Sound Digital Signal Antenna Broadcast
Ezonetronics DAB Radio Receiver In Car with Screen Stereo Sound Digital Signal Antenna Broadcast
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Why is the transmission signal of the German radio time signal not working?
The transmission signal of the German radio time signal may not be working due to technical issues such as equipment malfunction or signal interference. It could also be affected by environmental factors or natural disasters. Additionally, maintenance or repair work on the transmission infrastructure could also cause disruptions in the signal. Lastly, it is possible that the signal is intentionally disrupted for security or operational reasons.
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When is the next DCF77 radio signal?
The next DCF77 radio signal is transmitted every minute, 24 hours a day, 7 days a week from Mainflingen, Germany. This signal is used for time synchronization and is accurate to within a few milliseconds. To determine the exact time of the next DCF77 radio signal, you can simply wait for the top of the minute and listen for the signal.
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What are the advantages of a voltage signal compared to a current signal?
Voltage signals are advantageous over current signals in several ways. Firstly, voltage signals are easier to measure and manipulate as they can be easily converted to digital signals using analog-to-digital converters. Secondly, voltage signals are less affected by resistance in the circuit compared to current signals, making them more reliable for long-distance transmission. Lastly, voltage signals are safer to work with as they do not pose the same risk of electric shock as current signals.
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Can a digital signal be an alternating current?
No, a digital signal cannot be an alternating current (AC). A digital signal is a discrete, binary representation of data, typically represented by two voltage levels (0 and 1). On the other hand, alternating current is a type of electrical current where the flow of electric charge periodically reverses direction. While digital signals can be transmitted over an AC electrical system, the digital signal itself is not an AC current.
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