Results 91 to 100 of about 797 (174)

Blind estimation of pseudo-random codes in non-periodic long code direct-sequence spread-spectrum signals

Tongxin xuebao, 2015
The existence of common peaks in triple correlation functions of different m-sequences is proven based on the detail study of the characteristics of triple correlation functions of m-sequences,the features of common peaks and the direct relationship ...
HAOZhi-jin Z, UXiao-wei G, HENLei S, HANYi Z   +3 more
doaj   +2 more sources

PN Sequence Period Estimation Method for Underwater Direct-Sequence Spread Spectrum Signals Under Low SNR

Journal of Marine Science and Engineering
In non-cooperative DSSS signal reception, the accurate estimation of the pseudo-noise (PN) sequence period is essential for successful despreading and information recovery.
Yuanxin Teng, Yilin Wang, Yu Xiang, Jinjin Wang, Guolong Liang, Yu Hao, Jin Fu   +6 more
doaj   +1 more source

A Multichannel Conflict-Free Mac Protocol for Enhancing RPMA Scalability. [PDF]

Sensors (Basel), 2023
Alsaeedi EA, Bouabdallah F.
europepmc   +1 more source

DETECTION AND SYNCHRONIZATION OF DIRECT-SEQUENCE SPREAD-SPECTRUM SIGNALS

, 2022
This thesis proposes strategies for both acquisition of direct-sequence spread-spectrum (DSSS) signals in high-dynamic environments, and noncooperative detection of DSSS signals. In particular, we propose delay-Doppler efficient exhaustive search (DEES),
Chu, Derrick A.
core  

Implementasi Hybrid DS/FH Spread Spectrum menggunakan DSK TMS302C6416T

Jurnal Teknik ITS, 2014
Spread spectrum adalah sebuah metode komunikasi dimana semua sinyal komunikasi disebar di seluruh spektrum frekuensi yang tersedia. Sinyal informasi akan ditebarkan pada seluruh pita frekuensi yang disediakan dan dilakukan secara acak.
Aji Wisnu Laksita, Suwadi Suwadi, Titiek Suryani   +2 more
doaj  

Performance of the Direct Sequence Spread Spectrum Underwater Acoustic Communication System with Differential Detection in Strong Multipath Propagation Conditions

Archives of Acoustics
The underwater acoustic communication (UAC) operating in very shallow-water should ensure reliable transmission in conditions of strong multipath propagation, significantly disturbing the received signal. One of the techniques to achieve this goal is the
Jan H. SCHMIDT, Iwona KOCHAŃSKA, Aleksander M. SCHMIDT   +2 more
doaj   +1 more source

A Novel Recognition Method for Direct Sequence Spread Spectrum (DSSS) Signals Based on Secondary Power Spectrum

Advances in Computer, Signals and Systems, 2023
openaire   +1 more source

Serial Multicode Direct Sequence Spread Spectrum with Applications to Satellite Navigation Pilot Channels

In this paper we introduce Serial Bicode and Serial Multicode Direct Sequence Spread Spectrum (DSSS) and we extend them to Code Division Multiple Access (CDMA). To each user are assigned two or more spreading codes. The information is associated to these
Garello R.
core   +1 more source

Sistemas modulares de comunicación basados en técnicas de modulación de espectro ensanchado utilizando GNU radio

Revista Ingenierías Universidad de Medellín
Esta investigación se centra en el desarrollo de sistemas modulares en el software GNU Radio como herramienta de apoyo didáctica para la experimentación en el área de telecomunicaciones.
Maria Camila Herrera Ramos, Luis Miguel Capacho Valbuena, Auramaria Londoño Cano   +2 more
doaj   +1 more source

Understanding Spread Spectrum for Communications

, 2014
This tutorial is provided by National Instruments and is an introduction to spread spectrum for communications. This tutorial includes a table of contents and the following sections: Introduction, General Block Diagram, Direct Sequence Spread Spectrum ...

core