Results 11 to 20 of about 295,912 (261)
Enhanced Index Modulated OFDM Spread Spectrum
IEEE Access, 2018 Index modulated OFDM spread spectrum (OFDM-IM-SS) is a recently proposed scheme, which transmits the additional bits (index bits) through the code domain.
Jun Li +4 more
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Compressive Sampling with Multiple Bit Spread Spectrum-Based Data Hiding
Applied Sciences, 2020 We propose a novel data hiding method in an audio host with a compressive sampling technique. An over-complete dictionary represents a group of watermarks.
Gelar Budiman +2 more
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Presenting a Method for Improving Echo Hiding [PDF]
Computer and Knowledge Engineering, 2019 In this article, one of the most important methods of steganography on VoIP called echo hiding is improved. This method has advantages in maintaining the statistical and perceptual characteristics of audio signals as well as security against the ...
hanieh rafiee, mohammad fakhredanesh
doaj +1 more source
ComTech, 2012 The exchange of traffic information in cyberspace grows fast. In all areas of life utilize technology to exchange information. One of the media owned by many people is mobile device such as mobile phone and tablet computer. In fact many people have been
Rojali Rojali +2 more
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Compressive Sampling of Color Retinal Image Using Spread Spectrum Fourier Sampling and Total Variant
IEEE Access, 2022 In medical imaging, the application of retinal images demands a lot of retinal photos to analyze and requires efficient compression techniques for retinal image storage.
Ledya Novamizanti +5 more
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Telehealth Secure Solution to Provide Childhood Obesity Monitoring
Sensors, 2022 Childhood obesity causes not only medical and psychosocial problems, it also reduces the life expectancy of the adults that they will become. On a large scale, obese adults adversely affect labor markets and the gross domestic product of countries ...
Elitania Jiménez-García +4 more
doaj +1 more source
ECSS: High-Embedding-Capacity Audio Watermarking with Diversity Reception
Entropy, 2022 Digital audio watermarking is a promising technology for copyright protection, yet its low embedding capacity remains a challenge for widespread applications. In this paper, the spread-spectrum watermarking algorithm is viewed as a communication channel,
Shiqiang Wu +4 more
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Sensors, 2017 With the rapid development of wireless communication systems and electronic techniques, the limited frequency spectrum resources are shared with various wireless devices, leading to a crowded and challenging coexistence circumstance. Cognitive radio (CR)
Hailiang Xiong +5 more
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Improving Signal Security of Secondary Surveillance RADAR by Using Direct Sequence Spread Spectrum Technology [PDF]
علوم و فنون نظامی, 2020 Secondary radars are important equipment in the aviation industry. The basis of this system is the use of the L-band Q&A system for aircraft identification.
Jafar Khalilpur, Mohammad Farahmand rad
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Pediatric Blood &Cancer, EarlyView.ABSTRACT As part of the European Cooperative Study Group for Paediatric Rare Tumours initiative, we developed standard clinical practice guidelines for ovarian sex cord stromal tumors, based on comprehensive national and international cohort analyses, literature review, and a final expert consensus conference.
Dominik T. Schneider +15 more
wiley +1 more source