نتایج جستجو برای: spread spectrum method

تعداد نتایج: 1911324  

1999
Mercy George Jean-Yves Chouinard Nicolas Georganas

This paper presents a method of embedding information in digital images and video, which helps to trace illegal copies. This method of watermarking uses the principle of direct sequence spread spectrum. Spread spectrum signals are particularly resistant to non-linear amplitude distortion and additive noise, but are not resistant to timing errors. Using a sliding correlator, it is possible to de...

2014
Bharat Vashistha Nishant Panwar Neel Reddy A. Jabeena

Method for applying spread-spectrum techniques to optical communication is presented. The interference suppression capability of spread-spectrum systems is shown to be enhanced by optical transform domain processing.Effects of jammer in DSSS communication system are demonstrated in thispaper.Several possible implementations of this system are suggested, and applications to fiber optics, laser r...

Journal: :Visnyk NTUU KPI Seriia - Radiotekhnika Radioaparatobuduvannia 2020

Journal: :Проблеми створення, випробування, застосування та експлуатації складних інформаційних систем 2019

Journal: :DEStech Transactions on Computer Science and Engineering 2019

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تربیت مدرس 1386

چکیده ندارد.

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