Sökning: "mobile telephony"

Visar resultat 11 - 15 av 24 avhandlingar innehållade orden mobile telephony.

  1. 11. The Invisible Landscapes : The Construction of New Subjectivities in the Era of the Mobile Telephone

    Författare :Miya Yoshida; Konsthögskolan i Malmö; []
    Nyckelord :HUMANIORA; HUMANITIES; Subjectivities; Art History; Digital Network; Mobile Telecommunication; Geopolitics; Konstvetenskap;

    Sammanfattning : The interventions of portable digital devices such as mobile telephones, mp3 players, PDAs and many others, have contributed to the formation of contemporary notions of space. The impact of these devices' mobility (informing the users' mobility) could even be paralleled to the shift from the effects of still photography to those of film in the 19th century. LÄS MER

  3. 12. On Radio Wave Propagation Measurements and Modelling for Cellular Mobile Radio Networks

    Författare :Erik Östlin; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Field strength measurements; path loss prediction; point-to-area; Recommendation ITU-R P.1546; artificial neural network; large- and small-scale fading characteristics;

    Sammanfattning : To support the continuously increasing number of mobile telephone users around the world, mobile communication systems have become more advanced and sophisticated in their designs. As a result of the great success with the second generation mobile radio networks, deployment of the third and development of fourth generations, the demand for higher data rates to support available services, such as internet connection, video telephony and personal navigation systems, is ever growing. LÄS MER

  4. 13. Design of Programmable Baseband Processors

    Författare :Eric Tell; Dake Liu; Béatrice Philibert; Linköpings universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; programmable; baseband; application specific; processor; architecture; instruction set; acceleration; software defined radio SDR ; digital signal processing DSP ; Computer engineering; Datorteknik;

    Sammanfattning : The world of wireless communications is under constant change. Radio standards evolve and new standards emerge. More and more functionality is put into wireless terminals. E. LÄS MER

  5. 14. Soft-Constrained Subband Beamforming for Speech Enhancement

    Författare :Zohra Yermeche; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY;

    Sammanfattning : New speech acquisition applications are emerging as a result of advances in technology and the prevalence of mobile communication. While today voice control of consumer equipment is becoming a reality, communication technology has extended voice connectivity to personal computers and mobile communication devices with the aim of enabling natural communication in a variety of environments such as cars, restaurants and offices. LÄS MER

  7. 15. Knowledge-based speech enhancement

    Författare :Sriram Srinivasan; Bastiaan Kleijn; Rainer Martin; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; speech enhancement; noise reduction; linear predictive coe±cients; autoregressive; codebooks; maximum-likelihood; Bayesian; nonstationary noise; blind source separation.; Telecommunication; Telekommunikation;

    Sammanfattning : Speech is a fundamental means of human communication. In the last several decades, much effort has been devoted to the efficient transmission and storage of speech signals. With advances in technology making mobile communication ubiquitous, communications anywhere has become a reality. LÄS MER