Handbuch der Spread-Spectrum Technik

Goiser, A.M.J.

doi:10.1007/978-3-7091-6818-9

Cited by 12 publications

(7 citation statements)

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“…For the LISTEN system, a time-of-arrival tracking concept using short radio frequency burst signals was chosen (Goiser 1998). The navigation receivers pick up the navigation signals transmitted from the device attached to the user's headphones.…”

Section: The Tracking Systemmentioning

confidence: 99%

LISTEN: a user-adaptive audio-augmented museum guide

Zimmermann

Lorenz

2008

User Model User-Adap Inter

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Modern personalized information systems have been proven to support the user with information at the appropriate level and in the appropriate form. In specific environments like museums and exhibitions, focusing on the control of such a system is contradictory to establishing a relationship with the artifacts and exhibits. Preferably, the technology becomes invisible to the user and the physical reality becomes the interface to an additional virtual layer: by naturally moving in the space and/or manipulating physical objects in our surroundings the user will access information and operate the virtual layer. The LISTEN project is an attempt to make use of the inherent "everyday" integration of aural and visual perception, developing a tailored, immersive audio-augmented environment for the visitors of art exhibitions. The challenge of the LISTEN project is to provide a personalized immersive augmented environment, an aim which goes beyond the guiding purpose. The visitors of the museum implicitly interact with the system because the audio presentation is adapted to the users' contexts (e.g. interests, preferences, motion, etc.), providing an intelligent audio-based environment. This article describes the realization and user evaluation of the LISTEN system focusing on the personalization component. As this system has been installed at the Kunstmuseum Bonn in the context of an exhibition comprising artworks of the painter August Macke, a detailed evaluation could be conducted.

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Section: The Tracking Systemmentioning

confidence: 99%

LISTEN: a user-adaptive audio-augmented museum guide

Zimmermann

Lorenz

2008

User Model User-Adap Inter

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“…That is based on the correlation property of the PN-signal which is two valued ( Goiser, 1998;Molisch et al, 2001). If the spread-spectrum signals are shifted more than a chip duration apart, the correlation is close to zero.…”

Section: Spread-spectrum Is the Choicementioning

confidence: 99%

“…Due to the introduced polarity changes within the databit duration, the spectrum of the signal has broadened. The PN-signal is a suitable signal for spread-spectrum communication, because the PN-property delivers a two valued correlation function (1 = 0) (Goiser, 1998). .…”

Section: Bpsk Modulationmentioning

confidence: 99%

Exploiting the robust nature of spread-spectrum technology for future wireless applications

Goiser

2004

Elektrotech. Inftech.

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The attractiveness of spread-spectrum technology for future terrestrial mobile communication systems is shown. It is based on the robust nature of the spread-spectrum concept and its flexibility in the service design. The robustness of a spread-spectrum system is carried out and the corresponding benefits are listed and applied to future needs for communication systems.Keywords: robust communications; interference reduction; signal processing; multipath interference; unpredictable interference; wireless communication Ausnutzung der robusten Natur der Spread.spectrum Technology fiJr zuk~nftige Funkdienste. Fiir kiJnftige terrestrische mobile Kommunikationssysteme ist es sehr attraktiv, die Spread-spectrumTechnik einzusetzen. Dies basiert auf der robusten Natur des Spread-spectrum-Konzeptes und dessen Flexibilit~t in der Gestaltung der Dienste. Die Robustheit der Spread-Spectrum-Systeme wird herausgearbeitet, und die Vorteile f~ir k~nftige Anforderungen an Kommunikationssysteme werden abgeleitet.

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“…The navigation transmitter, mounted upon the user's headset, enables the system to determine the user's position and head orientation. In the LISTEN system a timeof-arrival tracking concept using short RF-burst signals was selected [24]. The navigation signal transmitted upon the user's headset is received by navigation receivers which are set up to have a favorable geometry and each one having a known location.…”

Section: A the Tracking-systemmentioning

confidence: 99%

Creating audio‐augmented environments

Zimmermann

Lorenz

2005

International Journal of Pervasive Computing and Communications

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The paper deals with the design and creation of an intelligent user interface augmenting the user experience in everyday environments, by providing an immersive audio environment. We highlight the potential of augmenting the visual real environment in a personalized way, thanks to context modeling techniques. The LISTEN project, a system for an immersive audio augmented environment applied in the art exhibition domain, provides an example of modeling and personalization methods affecting the audio interface in terms of content and organization. In addition, the different evolution steps of the system and the outcomes of the accompanying user tests are here reported.

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Handbuch der Spread-Spectrum Technik

Cited by 12 publications

References 0 publications

LISTEN: a user-adaptive audio-augmented museum guide

LISTEN: a user-adaptive audio-augmented museum guide

Exploiting the robust nature of spread-spectrum technology for future wireless applications

Creating audio‐augmented environments

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