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LIST OF ILLUSTRATIONS
LIST OF TABLES
LIST OF APPENDICES
1. Introduction
1.1 Purpose
1.2 Background
1.3 ROTHR Concept
1.4 ROTHR System Features and Description
1.4.1 General
Description
1.4.2 Over-the-Horizon Surveillance
1.4.2.1 Transmit Site
1.4.2.2 Receive Site
1.4.2.3 Operational Control Center
1.4.2.4 Radar Coverage Area
1.4.3
Ionospheric Measurement
1.4.3.1 Quasi-Vertical Incidence Sounder ( QVIS )
1.4.3.2 Backscatter Sounder ( BSS )
1.4.4
Radio Frequency Interference ( RFI ) Avoidance
1.4.5 Relocatability
1.4.5.1 Relocatability Philosophy
1.4.5.2 Relocatability Requirements
1.4.5.3 Transportability Requirements
1.4.6 ROTHR Reliability and System Effectiveness
1.4.7 ROTHR Operating Environment
1.4.8 ROTHR As Part of a Surveillance System
2. ROTHR System Description
2.1 General
2.2 Transmitter (Xmtr) Subsystem
2.2.1 General
2.2.2 Transmit Site Antenna Complex
2.2.2.1 Physical Description of the Log Periodic
Xmtr
Antennas
2.2.2.2 Quasi Vertical Incidence Sounder ( QVI ) Antenna
2.2.3 Transmit Site Hardware
2.2.4 Transmit Site Software
2.2.5 Transmit Site Shelters
2.2.5.1 Transmitter Control / Interface Shelter
2.2.5.2 Power Amplifier Shelters
2.2.6 Transmit Site Support Facilities
2.2.7 Transmit Site Personnel Requirements
2.2.8 Transmit Site Operational Requirements
2.3 Receiver Subsystem
2.3.1 General
2.3.2 Receive Site Antenna Complex
2.3.2.1 Physical Description of the Receive Site TWERP Antenna
2.3.3 Receive Site Hardware
2.3.4 Receive Site Software
2.3.5 Receive Site Shelters
2.3.6 Receive Site Support Facilities
2.3.7 Receive Site Personnel Requirements
2.3.8 Receive Site Operational Requirements
2.4 Operations Control Center ( OCC ) Subsystem
2.4.1 General
2.4.2 Physical Description of the OCC
2.4.3 OCC Hardware and Shelter Configurations
2.4.4 OCC Software
2.4.5 OCC Support Facilities
2.4.6 OCC Personnel Requirements
2.5 ROTHR External Interfaces
3. ROTHR System Displays
3.1 General
3.2 OCC Display and Control Console ( DCC )
3.2.1 DCC Cathode Ray Tube ( CRT ) Displays
3.2.1.1 CRT Display Template
3.2.1.2 Side Panel Data
3.2.2 DCC Operator Shelf
3.2.2.1 DCC Plasma Panel
3.2.2.2 Plasma Panel Layout
3.2.3 Plasma Panel Philosophy
3.2.3.1 Overlay Selection and Deselection
3.2.3.2 Directory Selection
3.2.3.3 Zooming and Magnifying Displays
3.2.3.4 Action Selection
3.2.4 DCC Keyboard
3.3 Types of Displays
3.3.1 Graphic Displays
3.3.2 Side Panel Directories4. ROTHR Operator Functions
4.1 General
4.2 OCC Operator Tasks
4.2.1
ROTHR Watch Officer ( WO )
4.2.1.1 ROTHR WO Tasks
4.2.2 ROTHR System Monitor and Control ( SMC ) Operator
4.2.2.1 ROTHR SMC Operator Tasks
4.2.3 ROTHR Propagation
Mgt and Assessment ( PMA ) Operator
4.2.3.1 ROTHR PMA Operator Tasks
4.2.4
ROTHR Detection & Tracking Supervisor ( DTS )
4.2.4.1 ROTHR DTS Tasks
4.2.5 ROTHR Air
Det. & Trk. ( ADT ) & Ship Det. & Trk. (
SDT ) Operators
4.2.5.1 ROTHR ADT and SDT Tasks
4.2.6 ROTHR OCC Computer Operator
4.2.7
ROTHR Transmit and Receive Site Operators
5. ROTHR System Operations
5.1 System Start-Up
5.1.1 Role of the Watch Officer in System Start-up
5.1.2 Roles of the Xmit and Receive Site Operators in System
Start-up
5.1.3 Role of the OCC ADP Operator in System Start-up
5.1.4 Conclusion of System Start-up
5.2 ROTHR Tasking
5.2.1 Types of Tasking
5.3 Surveillance Tasking
5.3.1 Plan Surveillance Tasking
5.3.2 Sound Surveillance Tasking
5.3.3 Activate Surveillance Tasking
5.3.4 Modify Task / Add and Delete DIRs
5.3.4.1 Effects of Modifying Tasks
5.3.4.2 Adding and Deleting DIRs
5.3.5 Replan Surveillance Tasking / Change DIR Parameters
5.3.5.1 Changing DIR Parameters
5.3.6 Cancel Surveillance Tasking
5.4 Raid Size Tasking
5.4.1 Plan Raid Size Tasking
5.4.2 Sound Raid Size Tasking
5.4.3 Activate Raid Size Tasking
5.4.4 Modify Task / Add and Delete DIRs
5.4.5 Replan Raid Size Tasking / Change DIR Parameters
5.4.6 Cancel Raid Size Tasking
5.4.7 Raid Size Displays
5.5 Target of Interest (TOI) Tasking
5.5.1 Plan TOI Tasking
5.5.2 Sound TOI Tasking
5.5.3 Activate TOI Tasking
5.5.4 Modify Task / Add and Delete DIRs
5.5.5 Replan TOI Tasking / Change DIR Parameters
5.5.6 Cancel TOI Tasking
5.6 Terrain Tasking
5.6.1 Plan Terrain Tasking
5.6.2 Sound Terrain Tasking
5.6.3 Activate Terrain Tasking
5.6.4 Modify Task / Add and Delete DIRs
5.6.5 Replan Terrain Tasking / Change DIR Parameters
5.6.6 Cancel Terrain Tasking
5.7 Detection and Tracking with
Raid Size Estimation
5.7.1 Target of Interest (TOI)
5.7.2 Raid Size Estimation
5.8 Propagation Management and Assessment
5.8.1 Ionospheric
Modelling
5.8.1.1 Virtual Height Grid
5.8.1.2 PCA Sensitivity Grid
5.8.2 Coordinate Registration Table
5.9 ROTHR Resource Management
5.10 Data Recording and
Playback
5.10.1 Data Recording
5.10.2 OCC and System Playback
5.11 Equipment Status Monitoring and Fault Isolation
5.12 ROTHR Tactical Message Handling
5.12.1 OCC / Communications Center
Partitioning
5.12.2 ROTHR Message Filtering
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