Unmanned aircraft systems : unmanned aircraft systems editors Ella Atkins (Department of Aerospace Engineering, University of Michigan, Ann Arbor, MI, USA), Aníbal Ollero (Universidad de Sevilla and Scientific Advisory Department of the Center for Advance

UNMANNED AIRCRAF T SYSTEMS UNMANNED AIRCRAF T SYSTEMS An unmanned aircraft system (UAS), sometimes called a drone, is an aircraft without a human pilot on board ??? instead, the UAS can be controlled by an operator station on the ground or may be autonomous in operation. UAS are capable of addressing a broad range of applications in diverse, complex environments. Traditionally employed in mainly military applications, recent regulatory changes around the world are leading to an explosion of interest and wide-ranging new applications for UAS in civil airspace. Covering the design, development, operation, and mission profiles of unmanned aircraft systems, this single, comprehensive volume forms a complete, stand-alone reference on the topic. The volume integrates with the online Wiley Encyclopedia of Aerospace Engineering , providing many new and updated articles for existing subscribers to that work. The chapters cover the following items: Airframe configurations and design (launch systems, power generation, propulsion) Operations (missions, integration issues, and airspace access) Coordination (multivehicle cooperation and human oversight) With contributions from leading experts, this volume is intended to be a valuable addition, and a useful resource, for aerospace manufacturers and suppliers, governmental and industrial aerospace research establishments, airline and aviation industries, university engineering and science departments, and industry analysts, consultants, and researchers. Unmanned Aircraft Systems -- Contents -- Contributors -- Foreword -- Preface -- Part 1: Introductory -- Chapter 1: UAS Uses, Capabilities, Grand Challenges -- 1 Introduction -- 2 Uses - Missions and Applications -- 2.1 Early evolution -- 2.2 Dull, dirty, and dangerous -- 2.3 Emergence of civil and commercial applications -- 3 Emerging Capabilities And A Look Ahead -- 3.1 Expanding the design space and operational envelope -- 3.2 Autonomy -- 4 Grand Challenges Ahead -- 4.1 Access to the airspace -- 4.2 The quest for trust -- 4.3 Integration -- 5 Summary -- References -- Part 2: Missions Chapter 3: Autonomous Parachute-Based Precision Delivery Systems -- 1 Introduction -- 2 Concept of Operations and Key Requirements -- 3 Pads Family and Steady-State Performance -- 4 Modeling -- 4.1 Governing equations -- 4.2 Apparent mass and inertia -- 4.3 PADS aerodynamics -- 4.4 Effect of the control inputs -- 4.5 Linearized models and stability -- 5 Pads Gnc -- 5.1 Maneuver-based guidance -- 5.2 Accounting for the variable winds -- 5.3 Optimal precision placement guidance -- 6 Other Developments -- 6.1 Glide slope angle control -- 6.2 Reduced cost PADS -- 7 Conclusion -- References 5 Smart Bombs -- 5.1 Physical Preparation -- 5.2 Aircraft Attachment -- 5.3 Targeting -- 5.4 Release and Guidance -- 6 Complex Air-To-Ground Weapons -- 7 Air-To-Air Missiles -- 7.1 Aircraft Attachment -- 7.2 Targeting -- 7.3 Release and Guidance -- 7.4 End-Game -- 8 Releasing Weapons from Weapon Bays -- 9 Stores Management Systems -- 10 Weapon Interface Standards -- 11 Future Systems -- Acknowledgments -- Related Article -- Further Reading -- Part 3: Airframe Configurations -- Chapter 6: Classes and Missions of UAVs -- Acronyms -- 1 Overview -- 2 Examples of UAVs -- 2.1 Very Small UAVs Chapter 4: Networked Multiple UAS -- 1 Introduction -- 2 Principles of Radio Links -- 3 Air-to-Ground Communications -- 4 Air-to-Air Communications -- 5 Antenna Types and Locations -- 5.1 Omnidirectional Antennae -- 5.2 Directional Antennae -- 5.3 Phased Arrays -- 5.4 Antenna Locations -- 6 UAS Networks -- 7 Conclusions -- Notation -- Abbreviations -- References -- Chapter 5: Weapons Integration -- 1 Introduction -- 2 Issues for System Design and Integration -- 3 Types of Weapon -- 4 Ballistic Bombs -- 4.1 Physical Preparation -- 4.2 Aircraft Attachment -- 4.3 Targeting -- 4.4 Release Chapter 2: Remote Sensing Methodology for Unmanned Aerial Systems -- 1 Introduction -- 2 UAS Remote Sensing Methodology -- 3 Core Concepts in UAS Remote Sensing Applications -- 3.1 Detection/Counting Applications -- 3.2 Identification/Localization Applications -- 3.3 Analysis Applications -- 4 UAS Imaging Equipment -- 4.1 Video Systems -- 4.2 Digital Cameras -- 4.3 Calibrated Digital Imagers -- 4.3.1 Digital Cameras as Calibrated Imagers -- 4.3.2 Multispectral and Hyperspectral Imagers -- 4.3.3 Spectral Sensitivity -- 5 Conclusion -- References