High Frequency (HF) and Meteor Burst Communications in a Polar Environment

High Frequency (HF) and Meteor Burst Communications in a Polar Environment PDF

Author:

Publisher:

Published: 1993

Total Pages: 341

ISBN-13:

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HF radio provides a low-cost, long-range communications alternative to satellite communication (SATCOM). In the polar environment, however, the frequent occurrence of dense sporadic E layers during summer in high-sunspot periods can prevent propagation in the HF band for the desired communications ranges. During solar storms, intense radiation may induce significant D-region absorption which further reduces the utility of HF radio. These phenomena cannot be defeated by the use of automatic link establishment (ALE) HF radio equipment because of the broadband nature of these effects. The use of VHF communication techniques, such as meteor scatter, provide a viable supplement to maintain connectivity when normal ALE HF radio is ineffective. This study combines the analysis of Scott Base Ionosonde data with computer predictions using A Stand- Alone Prediction Program (ASAPS) from the Australian Radio Prediction Service and IONCAP from the Institute for Telecommunications of the U.S. Department of Commerce to quantify the possibility of HF communications and suggest suitable radio system design parameters. Similarly, predictions of meteor burst (MF) link performance are provided for comparison with available measurements so that comparisons may be performed with actual link operations. Finally, an HF/VHF radio system design is envisioned to meet polar communications requirements and follow-on work to develop and verify design details is recommended. Buoys, Radio Communications, Antarctic, High Frequency (HF), Radio Propagation, Antenna, Meteor Burst, Technology Block, Arctic, Radio Communications.

21st Century U.S. Military Manuals

21st Century U.S. Military Manuals PDF

Author: Department of Defense (DoD)

Publisher:

Published: 2017-10-29

Total Pages: 248

ISBN-13: 9781973181491

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This field manual (FM) serves as a reference document for tactical radio systems. It also provides doctrinal procedures and guidance for using tactical radios on the modern battlefield. This FM targets operators, supervisors, and planners, providing a common reference for tactical radios. It provides a basic guidance and gives the system planner the necessary steps for network planning, interoperability considerations, and equipment capabilities. Chapter 1 - APPLICATIONS FOR TACTICAL RADIO DEPLOYMENT * Modularity * Tactical Radio Deployment * Army Special Operations Forces * Army Force Generation Process * Chapter 2 - TACTICAL RADIOS * Tactical Radio Networks * Electromagnetic Spectrum Operations * Chapter 3 - HIGH FREQUENCY RADIOS * High Frequency Communications Concepts * AN/PRC-150 I Advanced High Frequency/Very High Frequency Tactical Radio * Improving High Frequency Radio Operations * Improved High Frequency Radios * Chapter 4 - VERY HIGH FREQUENCY RADIO SYSTEMS * Single-Channel Ground and Airborne Radio System Characteristics and Capabilities * Single-Channel Ground and Airborne Radio System Radio Sets * Single-Channel Ground and Airborne Radio System Ancillary Equipment * Single-Channel Ground and Airborne Radio System Planning * Single-Channel Ground and Airborne Radio System Wireless Network Extension Station * Single-Channel Ground and Airborne Radio System Jamming and Anti-Jamming * AN/PRC-148 Multiband Inter/Intra Team Radio AN/PRC-152 Multiband Handheld Radio * Chapter 5 - ULTRA HIGH FREQUENCY RADIOS * Force XXI Battle Command, Brigade and Below * Enhanced Position Location Reporting System * Blue Force Tracking * Near Term Digital Radio * Tactical Digital Information Link-Joint Terminals * Multifunctional Information Distribution System * Chapter 6 - SINGLE-CHANNEL TACTICAL SATELLITE * Single-Channel Tactical Satellite Introduction * Single-Channel Tactical Satellite Planning Considerations * Single-Channel Ultra High Frequency And Extremely High Frequency Terminals * AN/PSC-5 Radio Set (Spitfire) * AN/PSC-5I UHF Tactical Ground Terminal (Shadowfire) * AN/PSC-5D Multiband Multimission Radio * AN/PRC-117F Manpack Radio * Army Conventional Forces * Operations and Intelligence Networks * Single-Channel Tactical Satellite Fire Support Networks * Single-Channel Tactical Satellite Communications Planning * Chapter 7 - AIRBORNE RADIOS * Airborne Single-Channel Ground and Airborne Radio Systems * AN/ARC-210 Radio System * AN/ARC-220 Radio System * AN/VRC-100(V) High Frequency Ground/Vehicular Communications System * AN/ARC-231 Radio System * AN/ARC-164(V) 12 Ultra High Frequency Radio * AN/VRC-83(V) Radio Set * AN/ARC-186(V) VHF AM/FM Radio * Chapter 8 - OTHER TACTICAL RADIO SYSTEMS * AN/PRC-126 Radio Set * ICOM F43G Handheld Radio * Land Mobile Radio * Land Warrior * Combat Survivor Evader Locator * AN/PRC-90-2 Transceiver * AN/PRC-112 Combat Search and Rescue Transceiver * Joint Tactical Radio System * Chapter 9 - ANTENNAS * Antenna Fundamentals * Antenna Concepts and Terms * Ground Effects * Antenna Length * Improvement of Marginal Communications * Types of Antennas * Field Repair * Chapter 10 - AUTOMATED COMMUNICATIONS SECURITY MANAGEMENT AND ENGINEERING SYSTEM * System Description * Hardware * Software * Chapter 11 - COMMUNICATIONS TECHNIQUES: ELECTRONIC PROTECTION * Electronic Warfare * Commanders Electronic Protection Responsibilities * Staff Electronic Protection Responsibilities * Planning Process * Signal Security * Emission Control * Preventive Electronic Protection Techniques * Electronic Warfare for Single-Channel Tactical Satellite * Counter Remote Control Improvised Explosive Device Warfare * Joint Spectrum Interference Resolution Reporting * Chapter 12 - RADIO OPERATING PROCEDURES * Phonetic Alphabet * Numerical Pronunciation * Procedure Words * Radio Call Procedure

Advanced Multicarrier Technologies for Future Radio Communication

Advanced Multicarrier Technologies for Future Radio Communication PDF

Author: Hanna Bogucka

Publisher: John Wiley & Sons

Published: 2017-07-10

Total Pages: 304

ISBN-13: 1119168910

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A practical review of state-of-the-art non-contiguous multicarrier technologies that are revolutionizing how data is transmitted, received, and processed This book addresses the advantages and the limitations of modern multicarrier technologies and how to meet the challenges they pose using non-contiguous multicarrier technologies and novel algorithms that enhance spectral efficiency, interference robustness, and reception performance. It explores techniques using non-contiguous subcarriers which allow for flexible spectrum aggregation while achieving high spectral efficiency and flexible transmission and reception at lower OSI layers. These include non-contiguous orthogonal frequency division multiplexing (NC-OFDM), its enhanced version, non-contiguous filter-bank-based multicarrier (NC-FBMC), and generalized multicarrier. Following an overview of current multicarrier technologies for radio communication, the authors examine particular properties of these technologies that allow for more efficient usage within key directions of 5G. They examine the principles of NC-OFDM and discuss efficient transmitter and receiver design. They present the principles of FBMC modulation and discuss key challenges for FBMC communications while comparing performance results with traditional OFDM. They move on from there to a fascinating discussion of GMC modulation within which they clearly demonstrate how that technology encompasses all of the advantages of previously discussed techniques, as well as all imaginable multi- and single-carrier waveforms. Addresses the problems and limitations of current multicarrier technologies (OFDM) Describes innovative techniques using non-contiguous multicarrier waveforms as well as filter-band based and generalized multicarrier waveforms Provides a thorough review of the practical limitations and solutions for evolving and breakthrough 5G communication technologies Explores the future outlook for non-contiguous multicarrier technologies as regards their greater industrial realization, hardware practicality, and other challenges Advanced Multicarrier Technologies for Future Radio Communication: 5G and Beyondis an indispensable working resource fortelecommunication engineers, researchers and academics, as well as graduate and post-graduate students of telecommunications. At the same time, it provides a fascinating look at the shape of things to come for telecommunication industry executives, telecom operators, regulators, policy makers, and economists.

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