Advanced high-frequency radio communications
著者
書誌事項
Advanced high-frequency radio communications
（The Artech House telecommunication library）
Artech House, c1997
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注記
Includes bibliographical references and index
内容説明・目次
内容説明
Presenting a description of automated HF communications, this work also considers the many phenomena which affect HF radio, and offers insight into new and future HF techniques. It includes information on automatic link establishment (ALE) technology, advanced variable-transmission rate modems, wideband (1 MHz) HF communications services, and automated HF networks as an extension of the Internet.
目次
High-Frequency Communication System Engineering: Wireless. High-Frequency Radio in the Global Information Infrastructure. High-Frequency Systems Engineering. High-Frequency Systems engineering. High-Frequency System Design. High-Frequency Sky-Wave Channels: Sky-Wave Propagation in a Benign Ionosphere. Sky-Wave Propagation in a Disturbed Ionosphere. Noise. Radio Interference. High-Frequency Antennas: Narrowband Antennas. Broadband Antennas. 'Small' High-Frequency Antennas. Environmental Effects. Digital Modems for High-Frequency Radio: Traditional Design Approaches. Relative Merits of Contemporary Designs. Enhanced High-Frequency Modem Design. Automatic Link Establishment Signal Structure: Linking Performance. ALE Word Format. Coding. Word Synchronization. Addresses. ALE Frame Structure. Automatic Link Establishment Protocols: Overview of ALE Operations. Channel Evaluation and Selection. Link Establishment. ALE Data Structures. ALE Orderwire Functions. Future Developments. Linking Protection: Linking Protection Technique. Protection Interval Analysis. Performance Evaluation of Linking Protection. The High-Frequency Data Link Protocol: Data Transfer Protocol. Message Management Protocol. Link Management Protocol. Timeouts. Broadcast Mode. ARQ Circuit Mode. Full-Duplex Operation. Adapting Data Rate. High-Frequency Radio Networking: Automated Networking Technologies. An Example Implementation. Automated High-Frequency Network Management.
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