Results 31 to 40 of about 797 (174)

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

AN INTERFERENCE-IMMUNE COMMUNICATION SYSTEM FOR DIGITAL DATA TRANSMISSION BASED ON A MULTI-CHANNEL CORRELATOR Part 1. DEVELOPMENT OF A SIGNAL FORMATION AND DECODING ALGORITHM FOR THE SUB-NOISE COMMUNICATION SYSTEM [PDF]

Radio Physics and Radio Astronomy
Subject and Purpose. The work aims to develop and study an interference-immune radio communication system for transmitting and receiving digital information and video images using a Software-Defined Radio (SDR). Methods and Methodology.
A. V. Varavin, H. P. Yermak, D. P. Kudryavtsev, O. S. Vasiliev, M. V. Balaban, S. S. Melnyk, V. M. Zheltov, O. V. Fateev   +7 more
doaj   +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   +1 more source

Turbo iterative acquisition algorithm for satellite high-mobility DSSS signal

Tongxin xuebao, 2021
To solve the problems of the low acquisition probability and high computational complexity in satellite high-mobility communications, a new factor graph was designed for acquisition of the high-mobility direct sequence spread spectrum (DSSS) signal ...
Chunxiao JIANG, Jiawei WANG
doaj   +2 more sources

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

Blind Estimation of Self-Synchronous Scrambler Using Orthogonal Complement Space in DSSS Systems

IEEE Access, 2022
In a non-cooperative context, a receiver has to estimate the communication parameters without any prior knowledge of the transmitter, which is highly demanding.
Yoonji Kim, Jungmin Kim, Junghwan Song, Dongweon Yoon   +3 more
doaj   +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