McNeil L.M. Spatial temporal information systems: an ontological approach using STK / L.M.McNeil, T.S.Kelso. - Boca Raton: CRC/Taylor & Francis, 2014. - xvii, 336 p.: ill. - Bibliogr.: p.239-240. - Ind.: p.329-336. - ISBN 978-1-4665-0045-7  Место хранения:   02 | Отделение ГПНТБ СО РАН | Новосибирск

Оглавление / Contents

Preface ...................................................... xiii Acknowledgments ................................................ xv About the Authors ............................................ xvii Section I The Basics 1 The Basics of Spatial Temporal Information Systems ........... 3 Objectives of This Chapter ................................... 3 Introduction ................................................. 3 Understanding STK Basics ..................................... 5 The Workflows of STK for Ontological Studies ................. 6 Ontology ..................................................... 8 Delineation between Objects and Tools ........................ 9 Exploring the Objects ....................................... 10 Building Relationships with STK Tools ....................... 12 Output ...................................................... 13 Data Providers .............................................. 13 What to Expect .............................................. 14 2 Ontology .................................................... 15 Objectives of This Chapter .................................. 15 Defining Ontology ........................................... 15 The Engineering Workflow .................................... 20 Understand the Properties ................................... 22 Four Primary Levels of Set Domains .......................... 23 The Root Level ........................................... 23 Basic .................................................... 24 Object Level ............................................. 29 Tool Level ............................................... 31 STK Objects, STK Tools, and Ontology ........................ 32 3 The Scenario ................................................ 33 Objectives of This Chapter .................................. 33 The Scenario ................................................ 33 Starting a Scenario ......................................... 33 Defining Your Scenario ...................................... 34 Step 1. Understand the Problem and the Question .......... 35 Step 2. Draw Out the Problem in Sketch Form .............. 36 Step 3. Select and Input Terrain and Imagery ............. 36 Step 4. Input and Refine Objects ......................... 37 Step 5. Evaluate Constraints ............................. 38 Step 6. Develop and Refine Output, Reports, and Graphs ... 38 Putting It All Together: Creating a Scenario ................ 38 Section II STK Objects 4 The STK Object .............................................. 43 Objectives of This Chapter .................................. 43 The STK Object .............................................. 43 Dynamic Interaction within the STK Object ................... 44 Feature Geometry ......................................... 44 Time Features of the Object .............................. 45 Calculations within the Object ........................... 45 Using a GIS Shapefile in STK ................................ 46 Using the Data Federate ..................................... 47 The STK Object Instance ..................................... 48 Basic .................................................... 48 Basic Attributes in Common ............................... 49 2D Graphics .............................................. 52 3D Graphics .............................................. 52 Constraints .............................................. 56 Understanding the STK Object ................................ 59 5 Area Targets ................................................ 61 Objectives of This Chapter .................................. 61 Area Target Objects ......................................... 61 Methods: Countries, US States, and Shapefiles ............ 61 Method: Area Target Wizard ............................... 64 Defining Properties ......................................... 65 Basic Properties ......................................... 65 2D Graphics Properties ................................... 65 3D Graphics Properties ................................... 66 Vector ................................................... 67 Constraints ................................................. 68 6 Targets, Facilities, and Places ............................. 71 Objectives of This Chapter .................................. 71 Fixed Point Objects ......................................... 71 City Database Files ......................................... 72 STK Facility Database Files ................................. 74 The Static Point ............................................ 77 7 The Moving Object ........................................... 79 Objectives of This Chapter .................................. 79 Moving Objects .............................................. 79 Spatial Temporal Analytics Using a Time Clock ............... 80 Point, Point Mass, and Vector Geometry ...................... 82 Moving Vehicle Propagators .................................. 83 Ground Vehicles .......................................... 84 Aircraft ................................................. 84 Satellites ............................................... 85 Launch Vehicles .......................................... 85 Missiles ................................................. 85 MTO ......................................................... 86 8 Aircraft .................................................... 89 Objectives of This Chapter .................................. 89 Aircraft Object Overview .................................... 89 The Aircraft Object ......................................... 90 Aircraft Route Propagators .................................. 91 Aircraft Mission Modeler .................................... 94 Vehicle Translation in AMM .................................. 96 9 Satellites .................................................. 99 Objectives of This Chapter .................................. 99 What Is a Satellite? ........................................ 99 Creating a Satellite in STK ................................. 99 Insert Satellite from Database .......................... 101 GPS Satellites .......................................... 102 Orbit Wizard ............................................ 104 Insert from Saved External Ephemeris File ............... 106 Satellite Objects ....................................... 106 Satellite Propagation ...................................... 106 Classes of Propagators ..................................... 107 Accuracy of Propagators .................................... 108 How Data Availability Affects the Choice of a Propagator ... 110 Configuring Other Satellite Attributes ..................... 110 Attitude ................................................ 110 Eclipse Bodies .......................................... 111 Pass Break .............................................. 111 Pass .................................................... 111 Orbit System ............................................ 112 10 Advanced Satellites ........................................ 115 Objectives of This Chapter ................................. 115 Astrogator ................................................. 116 MCS Toolbar ................................................ 118 Run Button .............................................. 118 Summary Button .......................................... 118 Clear Graphics .......................................... 118 MCS Options ............................................. 119 Segment Properties ...................................... 119 MCS ........................................................ 120 Defining Mission Control Segments ....................... 120 Initial State ........................................... 120 Initial State Tool Segment Parameters ................... 123 Spacecraft Parameters and Fuel Tank ..................... 123 Launch Segment Parameters ............................... 123 Follow Segment Parameters ............................... 125 Maneuver Segment ........................................ 125 Hold Segment ............................................ 125 Propagator Segment ...................................... 125 Sequence Segment-Forward and Backward ................... 126 Target Segment .......................................... 128 Other Astrogator Components ................................ 128 11 Child Objects .............................................. 133 Objectives of This Chapter ................................. 133 Child Objects .............................................. 133 STK Child Object Methods ................................... 134 Attaching a Child Object on a Parent Object ................ 135 Sensor Models .............................................. 137 The Child-of-a-Child Relationship .......................... 138 Modeling Communications Equipment with STK Child Objects ... 138 The Transmitter STK Child Object ........................... 139 Transmitter Properties ..................................... 140 Retransmitter Properties ................................... 141 The Receiver STK Child Object .............................. 145 Receiver Properties ........................................ 145 The Antenna STK Child Object ............................... 147 STK Communications Components .............................. 148 12 Constellations ............................................. 153 Objectives of This Chapter ................................. 153 The Constellation Object ................................... 153 Filling a Constellation .................................... 153 Constellation Constraint Conditions ........................ 155 All Of .................................................. 156 Any Of .................................................. 156 At Least N .............................................. 156 Exactly N ............................................... 157 None Of ................................................. 157 Cross Parent ............................................ 158 Section III STK Tools 13 STK Tools .................................................. 161 Objectives of This Chapter ................................. 161 Tools within STK ........................................... 161 Tools and Ontologies ....................................... 162 Tool Classes ............................................... 164 Ontological Tools .......................................... 165 Nonontological Tools ....................................... 166 Time Computations .......................................... 166 Understanding Light Time Delay ............................. 167 14 Access and Deck Access ..................................... 169 Objectives of This Chapter ................................. 169 General Description ........................................ 169 Access ..................................................... 170 Access Logic ............................................ 170 Access Using Geometric Ontology ......................... 172 Access Defaults and Options ................................ 173 Access Global Defaults .................................. 173 Local Access Options .................................... 175 Advanced Local Access Options ........................... 177 Access Data Providers ...................................... 178 Customization of Data Providers ............................ 180 Deck Access ................................................ 180 15 Chains ..................................................... 183 Objectives of This Chapter ................................. 183 Chains ..................................................... 183 Chain Logic ................................................ 185 Basic ................................................... 188 2D Graphics ............................................. 189 3D Graphics ............................................. 189 Constraints ............................................. 190 16 Coverage ................................................... 191 Objectives of This Chapter ................................. 191 Overview of Coverage ....................................... 191 Coverage Tools .......................................... 192 STK Object Coverage ..................................... 193 Attitude Coverage Tool .................................. 194 Figure of Merit ............................................ 194 17 Communications ............................................. 199 Objectives of This Chapter ................................. 199 Signal Communication Basics ................................ 199 Access and the Link Budget ................................. 202 Chains: Single Hop and Multihop ............................ 205 Coverage ................................................... 207 CommSystems ............................................. 207 Communication Extensions ................................ 208 18 Conjunction Analysis ....................................... 211 Objectives of This Chapter ................................. 211 Conjunction Analysis ....................................... 211 How Does CAT Work? ......................................... 212 How to Use CAT ............................................. 213 Calculating Probability of Collision ....................... 215 Real-World Applications .................................... 215 19 Nonontological Tools ....................................... 221 Objectives of This Chapter ................................. 221 Overview of Nonontological Tools ........................... 221 Vector Geometry Tool ....................................... 221 Angles .................................................. 223 Axes .................................................... 223 Coordinate Systems ...................................... 224 Planes .................................................. 224 Point ................................................... 225 Vectors ................................................. 225 Custom Vector Geometries ................................ 225 Globe Manager .............................................. 227 Terrain Conversion ......................................... 227 Calculation and Time Tools ................................. 228 Calculation Tool ........................................ 228 Time Tool with Timeline View ............................ 229 Section IV Output 20 Output ..................................................... 233 Objectives of This Chapter ................................. 233 STK Output ................................................. 233 Graphs and Reports ......................................... 234 Data Providers ............................................. 236 Closing Thoughts on Ontology ............................... 238 References .................................................... 239 Appendix A: Plug-in Scripts ................................... 245 Appendix B: Light Time Delay and Apparent Position ............ 317 Appendix C: Flow Diagram for the Transmitter Modulation Settings .......................................... 327 Index ......................................................... 329