GPS III
Abstract
GPS III is the next-generation SV supporting the GPS constellation and is funded in PE 1203265F. GPS III SVs will deliver significant enhancements, including a new international civil (L1C) signal, and enhanced anti-jam power. GPS III SVs 03-10 are in the Production & Deployment Phase. PE 1203265F funds GPS III and supports RDT&E of GPS III SVs 01-02 and risk-reducing simulators through a systems engineering approach that matures and delivers SVs for launch. This program includes SVs 01-02 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 delivery of the GPS OCX program. 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 and post 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. 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 AF 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 AFRL's S&T funding, PE 1203265F, and PE 1203269F (starting in FY 2019) to increase the number of alternate navigation payloads. GPS supports the early deployment of Global M-Code to meet a congressional mandate limiting user equipment purchase to M-Code-capable receivers starting in FY 2017. The funds will cover the 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 GPS OCX, supports 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 The Air Force Space Command Commander's mandate to provide global monitoring necessary for early m-code operational use and verification of 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 an initiative to host 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 U.S. GPS satellite constellation. This PE encompasses the GPS III (SVs 01-10), COps, MCEU, M-Code Hosted Payload, and prior to FY2019, GPS III Follow-On Production Readiness efforts.
Document Details
- Document Type
- Project
- Publication Date
- Oct 01, 2020
- Source ID
- 67A019_1203265F_7_3600_PB_2020
Related Documents
- Root: GPS III Space Segment
- Child Accomplishment: GPS III SVs 01-02
- Child Accomplishment: GPS III Follow-On (Production Readiness)
- Child Accomplishment: Contingency Operations (COps)
- Child Accomplishment: Architecture Evolution Plan (AEP) M-Code Monitoring
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