Surface Support

Abstract

The Surface Support RDT&E funding will be used for the research, design, development, integration testing, and documentation of a new AN/WSN-7 Inertial Measuring Unit (IMU) to support the Ballistic Missile Defense (BMD) mission. The program will implement systems engineering processes to identify specific BMD performance requirements, investigate major navigation system error sources, define new IMU functions, research new INS technologies, algorithms, and techniques to improve system performance, conduct analyses of alternatives, create preliminary and final design concepts, develop new hardware components and associated software, and conduct land based and shipboard testing. The AN/WSN-7(V) RLGN is a legacy, 1980's design that was first installed in 1998 and is now obsolete. The design is reaching its limit with respect to providing the high-accuracy navigation solution required to meet known and emerging mission requirements. Navigator of the Navy's Vision 2025 identifies emergent requirements with respect to improved navigation in a GPS denied environment, littoral warfare, mine countermeasures, and manned and unmanned vehicle operations that cannot be met with existing systems. The AN/WSN-7(V) Ring Laser Gyro Navigator (RLGN) system is a self-contained inertial navigator designed for U.S. Navy surface ships. The RLGN employs an Inertial Measuring Unit (IMU) with three single-axis ring laser gyros that allow the system to provide continuous and automatic data outputs of the ship's geographic position (latitude, longitude), horizontal and vertical linear velocity (Ve, Vn, Vv), attitude (heading, roll, and pitch) and attitude rates. The RLGN provides mission critical ship's position and attitude data to shipboard sensors (such as radars), combat systems, gun and missile systems. The RLGN uses data from the Global Positioning System (GPS) to periodically update (i.e., reset) its position and internal clock. The RLGN is the ship's primary position source in absence of GPS.

Document Details

• Document Type: R2 Budgetary Justification
• Publication Date: Oct 01, 2012
• Source ID: 0204228N_7_1319_PB_2012
• Change Summary Explanation: Technical: New start in FY 2012. Schedule: New start in FY 2012.
• Service Agency Name: Navy

Entities

Organizations

• United States Navy

Tags

Communities of Interest

• Materials and Manufacturing Processes
• Sensors
• Space
• Weapons Technologies

DTIC Thesaurus Topics

• Ballistic Missiles
• Budgets
• Cost Analysis
• Department Of Veterans Affairs
• Engineering
• Global Positioning Systems
• Inertial Measurement Units
• Littoral Warfare
• Navigation
• Navigators
• Ring Lasers
• Software Testing
• Systems Engineering
• Test And Evaluation
• Unmanned Vehicles
• Warfare

Readers

• Inertial Navigation Systems.
• Maritime and Naval Warfare Studies

Technology Areas

• Autonomy
• Directed Energy
• Space