GPS III
Abstract
GPS III is the next generation Space Vehicle (SV) supporting the GPS constellation and is funded in PE 1203265F. GPS III SVs will deliver significant enhancements, including a new civil (L1C) Galileo-compatible signal, enhanced anti-jam power, and a growth path to full warfighter capabilities. GPS III SV03-10 is in the Production & Deployment Phase. RDT&E, AF PE 1203265F funds GPS III and supports research, development, test and evaluation of GPS III SV01-02 and risk-reducing simulators through a systems engineering approach that matures and delivers SVs for launch. This PE includes SV01-02 engineering studies and analyses, trade studies, system development, test and evaluation efforts, integrated logistics support products, on-orbit support, and mission operations support for civil and military applications that protect U.S. military and allied use of GPS. The program also includes Contingency Operations (COps) as a bridge capability to fly GPS III SVs until the Next Generation Operational Control System (OCX) delivery. Space Modernization Initiative (SMI) focuses on space vehicle affordability and capability, addresses future requirements and resiliency needs, and expands the industrial base to enhance future competition. Phase 1 will address GPS Enterprise Analysis of Alternative (AoA) recommendations to increase GPS signal strength from space by maturing navigation payload technologies that include a new regional M-Code capability. The Air Force is using its research laboratories to mature an On-Orbit Reprogrammable Digital Waveform Generator (ORDWG) which will provide signal flexibility (to change the signal form while the satellite is on-orbit). This effort will be funded with Air Force Research Lab’s Science & Technology (S&T) funding and PE 1203265F to increase the number of alternate navigation payloads. Mission Readiness Campaign (MRC) activities include launch preparation, planning, mission readiness testing to validate space-ground-user interfaces, mission crew exercises and rehearsals, launch vehicle integration, and On-Orbit Checkout activities to validate performance prior to launch. Newly certified launch vehicles must be incorporated into the GPS III launch baseline. Integration requires the development of plans and procedures, and procurement of special support equipment. The Global Positioning System (GPS) supports the early deployment of Global M-Code to meet congressional mandate limiting user equipment purchase to M-Code capable receivers starting in FY17. The funds will cover the M-Code Early Use (MCEU) program and support development costs associated with the GPS control segment software to provide core M-Code capabilities to the warfighter, as well as the ability to command and control, process, and monitor the M-Code signal. MCEU mitigates delays with the Next Generation Operational Control Segment (OCX), supports Military Global Positioning System User Equipment (MGUE) testing, and allows for early M-Code operations. M-Code provides greater security to protect navigation and timing in electronically contested environments. Impacts of the M-Code deployment include: - Compliance with AFSPC/CC mandate to provide global monitoring necessary for Early M-Code Operational Use and verification of Navigation Warfare (NAVWAR)effects. - Direction to improve the resiliency of the GPS capability. - Confirmation that Enterprise modernization efforts are integrated and deployed properly. - Testing and Verification of M-Code capability on MGUE/GPS III solution and early M-Code use tied to MGUE fielding The feasibility studies and preliminary engineering analyses that are funded by this budget item will determine whether or not an initiative to host Global Positioning System (GPS) M-Code augmentation payloads on other satellite systems is practical and beneficial. The primary goal is to provide additional mission assurance through redundant systems not directly connected with the current US GPS satellite constellation.
Document Details
- Document Type
- Project
- Publication Date
- Oct 01, 2018
- Source ID
- 67A019_1203265F_7_3600_PB_2018
Related Documents
- Root: GPS III Space Segment
- Child Accomplishment: GPS III SV01-02
- Child Accomplishment: GPS III SV11+ (Production Readiness)
- Child Accomplishment: Contingency Operations (COps)
- Child Accomplishment: Enterprise Ground Services (EGS)
- Child Accomplishment: AEP M-Code Monitoring
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