Global Positioning System: Significant Challenges in Sustaining and Upgrading Widely Used Capabilities

United States. Government Accountability Office.

United States. Government Accountability Office.

关键词: Government accountability -- United States.;    space;    global positioning system;    letter report;   

RP-ID  :  GAO-09-325
RP-ID  :  289169

美国|英语

来源: UNT Digital Library

【 摘 要 】

A letter report issued by the Government Accountability Office with an abstract that begins "The Global Positioning System (GPS), which provides positioning, navigation, and timing data to users worldwide, has become essential to U.S. national security and a key tool in an expanding array of public service and commercial applications at home and abroad. The United States provides GPS data free of charge. The Air Force, which is responsible for GPS acquisition, is in the process of modernizing GPS. In light of the importance of GPS, the modernization effort, and international efforts to develop new systems, GAO was asked to undertake a broad review of GPS. Specifically, GAO assessed progress in (1) acquiring GPS satellites, (2) acquiring the ground control and user equipment necessary to leverage GPS satellite capabilities, and evaluated (3) coordination among federal agencies and other organizations to ensure GPS missions can be accomplished. To carry out this assessment, GAO's efforts included reviewing and analyzing program documentation, conducting its own analysis of Air Force satellite data, and interviewing key military and civilian officials."