Results 11 to 20 of about 7,287 (173)

Adaptive anti-jamming technologies based on direct sequence spread spectrum and single carrier frequency domain equalization [PDF]

, 2022
To solve the performance limitation of direct sequence spread spectrum system in complex multipath environment, an adaptive anti-jamming spread spectrum framework that organically combines single carrier frequency domain equalization (SCFDE) and direct ...
Ying ZHAO, Yuzhen HUANG, Haitao ZHAO, Fanglin GU, Jibo WEI   +4 more
core   +1 more source

Implementasi Direct Sequence Spread Spectrum pada DSK TMS320C6416T

, 2014
Spread spectrum merupakan teknik pengiriman sinyal yang tahan terhadap gangguan dan mempunyai tingkat keamanan informasi yang cukup tinggi pada saat pengiriman. Salah satu teknik spread spectrum yang dikembangkan adalah direct sequence.
Suwadi, Suwadi; Institut Teknologi Sepuluh Nopember, Haryadi, Nanang Arif; Institut Teknologi Sepuluh Nopember, Suryani, Titiek; Institut Teknologi Sepuluh Nopember   +2 more
core   +3 more sources

Synchronization in DSSS system

, 2020
Direct sequence spread spectrum (DSSS) communication systems offer huge performance focal points in perspective on their low probability of block, improved performance in multipath fading situations and their capacity to stay away from interference by ...
Abboud, Izz K., Laith A. Kunbar, Abbas S. Hassan, Izz K. Abboud, Kunbar, Laith A., Hassan, Abbas S.   +5 more
core   +1 more source

A New Approach to Spread-spectrum OFDM

, 2018
Orthogonal frequency division multiplexing (OFDM) systems are reviewed and the Shannon bound is dis- cussed as a criterion of efficient spectrum use and a design criterion. The problem of efficient sharing of spectrum by wireless communication systems is
Shahab Abdulla, Ronald G. Addie, Mohammad Kaisb Layous Alhasnawi, Abdulla, Shahab, Alhasnawi, Mohammad Kaisb Layous, Addie, Ronald G.   +5 more
core   +1 more source

A New Scheme for Spreading & De-spreading in the Direct Sequence Spread Spectrum Mechanism

, 2022
Direct Sequence Spread Spectrum (DSSS) and Frequency Hopping Spread Spectrum (FHSS) techniques are widely used to implement code-division multiple access (CDMA) in wireless communication systems.
ElSharkawy, Magdy Ibrahim
core   +2 more sources

Artificial Intelligence, Optimization, and Modeling Techniques in Water Resources Management: Challenges and Future Directions

Water Environment Research, Volume 98, Issue 6, June 2026.
This study presents an integrated framework linking six foundational elements of water resources management: watershed modeling, surrogate modeling, optimization, artificial intelligence, decision support systems, and monitoring. The synthesis highlights how connecting these traditionally separate domains fosters smarter, adaptive, and data‐driven ...
Hoda S. Razavi, A. Pouyan Nejadhashemi, Kalyanmoy Deb, Gregorio Toscano, Timothy Harrigan, Lewis Linker   +5 more
wiley   +1 more source

Spread Spectrum Process Using Direct Sequence Spread Spectrum (DSSS) and Frequency Hopping Spread Spectrum (FHSS) [PDF]

, 2009
This paper presents spread spectrum process using Direct Sequence Spread Spectrum (DSSS) and Frequency Hopping Spread Spectrum (FHSS). DSSS is type spread spectrum the most widely known and most widely used.
Abdalla, Ahmed N., Noraziah, Ahmad, N. A., Handrizal   +2 more
core  

A Systematic Review on Applications of Artificial Intelligence for Obesity Prevention

Obesity Reviews, Volume 27, Issue 5, May 2026.
ABSTRACT This systematic review examines the applications of artificial intelligence (AI) in preventing obesity, addressing a critical public health issue that affects a substantial portion of the population. With obesity rates rising alarmingly, particularly in the United States, this review synthesizes findings from 46 studies published between 2008 ...
Atefehsadat Haghighathoseini, Shuo‐yu Lin, Ge Song, Ruopeng An, Hong Xue   +4 more
wiley   +1 more source

Duplex Stainless Steel Laser‐Surface Textured: Stability in Brine Solution

Advanced Engineering Materials, Volume 28, Issue 8, 22 April 2026.
Controlled laser‐surface treatment (LST) of duplex DSS2205 steel is performed to increase its stability in brine solution under cyclic electrochemical assays. The superior protection with respect to flat and smooth panels is attributed to the presence of FeCr2O4 as the main protective oxide layer in the LST surface, after corrosion tests. The stability
Mohammad Rezayat, Hamidreza Enshaei, Elaine Armelin, José I. Iribarren, Antonio Mateo, Miguel Morales   +5 more
wiley   +1 more source

Acceleration‐Aware Estimation and Compensation of Doppler Scale for Mobile UWA OFDM Systems

IET Communications, Volume 20, Issue 1, January/December 2026.
We propose a novel method to estimate and compensate for the Doppler scale caused by acceleration in orthogonal frequency division multiplexing (OFDM)‐based underwater acoustic (UWA) systems. Simulation results under additive white Gaussian noise (AWGN), synthetic multipath and realistic waymark channel conditions demonstrate that the proposed approach
Yong‐Ho Cho, Seung‐Geun Kim
wiley   +1 more source