Results 241 to 250 of about 1,174,103 (294)
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Oncologic emergencies and urgencies: A comprehensive review
Ca-A Cancer Journal for Clinicians, 2022Bonnie Gould Rothberg +2 more
exaly
1998
In diesem Kapitel werden die bekanntesten Spread-Spectrum Techniken vorgestellt. Dazu wird das Prinzip jeder Technik, in Form eines Basisbandmodells, theoretisch erlautert. Weiters wird der Aufbau von Sender und Empfanger mit Hilfe eines Blockschaltbildes und deren wichtigsten Funktionsgruppen erklart.
openaire +1 more source
In diesem Kapitel werden die bekanntesten Spread-Spectrum Techniken vorgestellt. Dazu wird das Prinzip jeder Technik, in Form eines Basisbandmodells, theoretisch erlautert. Weiters wird der Aufbau von Sender und Empfanger mit Hilfe eines Blockschaltbildes und deren wichtigsten Funktionsgruppen erklart.
openaire +1 more source
2010
Spread Spectrum modulation is interesting and important in terms of security, in terms of bandwidth utilization and in terms of distortion (or noise) avoidance. In the present chapter, the scheme of spread spectrum modulation is discussed in detail. The concept of Pseudo Random Noise, justification of its name and generation of PN sequence is discussed
openaire +1 more source
Spread Spectrum modulation is interesting and important in terms of security, in terms of bandwidth utilization and in terms of distortion (or noise) avoidance. In the present chapter, the scheme of spread spectrum modulation is discussed in detail. The concept of Pseudo Random Noise, justification of its name and generation of PN sequence is discussed
openaire +1 more source
Spread-Spectrum Synchronisation
1998Spread-Spectrum Systeme bestehen prinzipiell aus einem konventionellen digitalen Modulationsverfahren mit aufgesetzter Spread-Spectrum Modulation. Die Spread-Spectrum Demodulation wird im Empfanger durch Gleichlauf der Spread-Spectrum Signale erreicht. Diesen Vorgang nennt man Spread-Spectrum Synchronisation.
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2010
Spread spectrum (SS) watermarking has proven to be efficient, robust and cryptographically secure. Each bit of watermark information is embedded over wide spectrum of the host signal based on spectrum spreading concept of SS modulation in digital communication and can easily be integrated with many existing data transmission scheme.
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Spread spectrum (SS) watermarking has proven to be efficient, robust and cryptographically secure. Each bit of watermark information is embedded over wide spectrum of the host signal based on spectrum spreading concept of SS modulation in digital communication and can easily be integrated with many existing data transmission scheme.
openaire +1 more source
2017
In this chapter, we present the principle of spread-spectrum transmission and demonstrate the basic underlying mechanisms for its desirable features. We first discuss the most popular spectrum spreading method, direct sequence spread spectrum (DSSS).
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In this chapter, we present the principle of spread-spectrum transmission and demonstrate the basic underlying mechanisms for its desirable features. We first discuss the most popular spectrum spreading method, direct sequence spread spectrum (DSSS).
openaire +1 more source