Global Navigation Satellite Systems Engineering, Policy, and Design
View of the United States Air Force Academy in Colorado SpringsThe 2012 JNC – Joint Navigation Conference (Guidance, Navigation and Control) will take place from June 12 through June 15 at Crowne Plaza Hotel in Colorado Springs, Colorado.
By Inside GNSS
Return to main article: Military PNT — The Way Ahead
By Inside GNSS
FIGURE 1: The three foundations of C2 and how they are “changing the game” in an electronic battlespace: spectrum (communications media), yellow; computers (digital data), green; PNT (precise position and timing), blue.With thanks to Yogi Berra, it’s “déjà vu all over again” for the Global Positioning System, but this time with a twist.
Twenty-five years ago, the question asked by U.S. military commanders and combat personnel in the field was, “Why should I go to the trouble to use this space-based system called GPS?” Today, the question being asked is, “GPS is vital to the success of my mission; so, why are you asking me to consider using something else?”
By Inside GNSS
L-3 Interstate Electronics Corporation (IEC) has announced that its latest modernized GPS receiver has successfully acquired and tracked live block IIR-M satellite M-Code (pseudo–M-Code) signals indicating proper operation of many receiver functions.
Combined Joint Task Force 76 helicopter carries troops and supplies over Eastern Afghanistan. Photo by Staff Sgt. Michael Casteel, U.S. ArmyU.S. Air Force officials are moving to reconfigure the GPS constellation to create a 27-satellite geometry that will improve the availability and accuracy of positioning, navigation, and timing (PNT) capabilities for U.S. military forces in Afghanistan and Iraq.
Although the constellation currently has 30 operational space vehicles (SVs), not including the SVN49/PRN1 that has still not been set healthy, a number of the spacecraft are located nearby other satellites — effectively creating a 24-SV geometry. (See accompanying figure.)
By Inside GNSS
TruTrak Evolution TTE-SS GPS Receiver BoardL-3 Interstate Electronics Corporation IEC) has announced two additional configurations of its miniaturized, hardened GPS TruTrak Evolution receiver and a new configuration of its GPS-based guidance & navigation unit (GNU) Evolution board.
By Inside GNSS
DAGR 2008. Rockwell Collins imageDevelopment and acquisition of military GPS user equipment (MGUE) are taking on new dimensions across the board — institutionally, procedurally, and technologically.
Along the way, the changes could redefine relationships within the Department of Defense (DoD) and between the agency and industry.
At the agency level, a proposal is forthcoming to “stand up” a positioning, navigation, and timing (PNT) user equipment joint program office (JPO) that would incorporate UE responsibilities (and budgets) now exercised by the GPS Wing (GPSW).
By Inside GNSS
The Advanced System Improvement Program (ASIP) Embedded GPS Receiver (EGR) from ITT Corporation is a 12-channel Selective Availability-Anti-Spoofing Module (SAASM) GPS receiver using 3.3 volt technology. Designed for military surveying, navigation, and timing applications, the board features dual-frequency (L1/L2) all-in-view tracking with a reported Precise Positioning Service (PPS) accuracy of 10 meters, SEP (spherical error probability). It has RS422, RS232, and CMOS (2) serial ports, selectable 1 pps and 10 pps, time marks (UTC), and1 pps time-sync.
By Glen Gibbons
