Author: Jens ZanderPublisher:
ISBN:
Category :
Languages : en
Pages : 25
Book Description
Adaptive Frequency Hopping in HF-communications
Author: Jens ZanderCoding for Adaptive Frequency Hopping System in HF-communications
Author: Göran MalmgrenAn HF Adaptive Frequency Hopping System
Author: Marco OmanHF Communications
Author: Nicholas M MaslinPublisher: CRC Press
ISBN: 0203168895
Category : Technology & Engineering
Languages : en
Pages : 256
Book Description
Communications using the high frequency spectrum (2-30 MHz) have experienced a considerable resurgence. In recent years, powerful microcomputers and VLSI technology have greatly enhanced the prospects of overcoming many of the unique problems that formerly afflicted the HF systems More...designer. The aim of this book, therefore, is to provide a fi
Adaptive Frequency Management Experiment for a Medium Sized HF Radio System for Field Use in North Greenland
Author: Signal
Author: Advanced Trends in Wireless Communications
Author: Mutamed KhatibPublisher: BoD – Books on Demand
ISBN: 9533071834
Category : Computers
Languages : en
Pages : 536
Book Description
Physical limitations on wireless communication channels impose huge challenges to reliable communication. Bandwidth limitations, propagation loss, noise and interference make the wireless channel a narrow pipe that does not readily accommodate rapid flow of data. Thus, researches aim to design systems that are suitable to operate in such channels, in order to have high performance quality of service. Also, the mobility of the communication systems requires further investigations to reduce the complexity and the power consumption of the receiver. This book aims to provide highlights of the current research in the field of wireless communications. The subjects discussed are very valuable to communication researchers rather than researchers in the wireless related areas. The book chapters cover a wide range of wireless communication topics.
A Statistical Channel Model for Adaptive HF Communications Via a Severely Disturbed Ionosphere
Author: D. M. HainesPublisher:
ISBN:
Category :
Languages : en
Pages : 30
Book Description
Motivation for the resurgence of interest in improving HF communication is presented. This includes the continued widespread use of the HF band, and the new technology that now makes it feasible to vastly improve the historically poor quality of communications in this band. Non-conventional HF techniques or systems are classified into four general categories according to the technical specialties that spawned them. These categories are Adaptive Frequency Management. Digital Waveform Processing, Networking, and Adaptive Antennas. A 15 parameter channel model is presented which forms the basis for the on-going RADC measurement program. These parameters address the dispersion and dynamics of time, frequency and spatial distortion imposed by the skywave channel. Next, measurement techniques are evaluated for characterization of these parameters, resulting in the selection of a six station Arctic network of wideband pulse compression (matched filter) channel probes. A description of waveform generation, receiver signal processing and the program plans and schedule are presented. (Author).
Scientific and Technical Aerospace Reports
Author: Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 380
Book Description
Lists citations with abstracts for aerospace related reports obtained from world wide sources and announces documents that have recently been entered into the NASA Scientific and Technical Information Database.
Communications on the Move
Author: Publisher: IEEE Computer Society Press
ISBN:
Category : Combat survivability (Military engineering)
Languages : en
Pages : 446
Book Description