Modern HF Signal Detection and Direction Finding

Jay R. Sklar, James Ward

• Publisher: The MIT Press
• Year: 2018
• eBook ISBN: 9780262347686
• Edition: 0
• Topic: Computer Science
• Subtopic: Computer Science General
• Index: Computer Science

Adaptive antenna array technology encompasses many powerful interference suppression approaches that exploit spatial differences among signals reaching a radio receiver system. Today, worldwide propagation phenomenology occurring in the High Frequency (HF) radio regime has made such interference common. In this book, Jay Sklar, a longtime researcher at MIT Lincoln Laboratory, presents detailed descriptions of detection, direction-finding, and signal-estimation methods applicable at HF, using consistent formalisms and notation. Modern electronic system technology has made many of these techniques affordable and practical; the goal of the book is to offer practicing engineers a comprehensive and self-contained reference that will encourage more widespread application of these approaches.

The book is based on the author's thirty years of managing MIT Lincoln Laboratory work on the application of adaptive antenna array technologies to the sensing of HF communication signals. After an overview of HF propagation phenomenology, communication signal formats, and HF receiver architectural approaches, Sklar describes the HF propagation environment in more detail; introduces important modulation approaches and signaling protocols used at HF; discusses HF receiver system architectural features; and addresses signal processor architecture and its implementation. He then presents the technical foundation for the book: the vector model for a signal received at an adaptive array antenna. He follows this with discussions of actual signal processing techniques for detection and direction finding, including specific direction-finding algorithms; geolocation techniques; and signal estimation.

Table of contents

• Cover
• Series Page
• Title Page
• Copyright
• Table of Contents
• List of Figures
• List of Tables
• Preface
• About the Author
• 1. Introduction
• 2. HF Propagation Physics and Its Effect on Signals
• 3. Common HF Modulation Protocols
• 4. HF Receiver Architectural Approaches
• 5. HF Array-Processing Architecture
• 6. Vector Models for Adaptive Array Signals
• 7. Signal Detection Processing
• 8. Array Evaluation: Direction Finding Performance Bounds
• 9. Direction Finding Techniques for HF Applications
• 10. Geolocation Techniques
• 11. Copy: Steering Vector Methods
• 12. Copy: Feature Exploitation Methods
• Index