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| Troubleshoot Before Takeoff
| Modeling and simulation, two separate but related activities conducted prior to flight tests of high-performance military navigation systems, can reduce costs, shorten timelines, and remove some uncontrollable variables from the process, to deliver more accurate, verifiable results. | | | Aerial Advantage: Robust Sensor Fusion for GPS Inertial Measurement Units in Diverse Flight Environments
| | A solid-state GPS navigation system enables widespread use of GPS in smaller manned and unmanned aircraft, achieving the accuracy and robustness typically associated with larger, higher cost systems. The NAV420's sensors, data-acquisition elements, and Kalman-filter-based algorithm allow smaller aircraft to be deployed more easily for a variety of missions — at less than one-tenth the size and cost of most tactical and navigation-grade inertial systems. | | | Robotic Fighters Coming in on GPS
| | A recent simulated test of military UAVs demonstrated one more envisioned GPS role in military operations. As part of the J-UCAS program, Northrop Grumman performed a test of simulated, simultaneous control of four X-47B UAVs on September 28, 2005, at the Naval Air Warfare Center Weapons Division in China Lake, California. | | | Hurricane Hunters
| | GPS dropsondes released into the Katrina's eyewall tracked and predicted wind strength, speed, and direction. | | | Single-Source MUE Effort at JPO
| | The GPS Joint Program Office (JPO) has launched an initiative to shift all work on Modern User Equipment (MUE) to a single contractor, citing budget constraints. | | | Soaring Safe
| | Quick — how many life-saving decisions can you make in 18 seconds? | |  MORE ARTICLES
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| Security for Insecure Times
| | Modernized Loran, hard to spoof and hard to jam, shows strong potential for securing sensitive data. | | | Warfighter Awareness
| | A software-only upgrade to the Defense Advanced GPS Receiver handheld creates real-time position, waypoint, and message exchange and display capability using fielded, secure, tactical radios for situational awareness, friend-or-foe identification, and search and rescue. | | | DIRECTIONS 2007: Military & Government
| | When peering into the future, a critical question is often whether civilian or military glasses perch upon the nose. Perspectives differ greatly regarding the genesis and intent of most major GNSSs as related to the military rather than the civilian world. | | | MORE ARTICLES
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| Secure Tracking for Critical Applications
| | From the safety of workers to the protection of assets and the transportation of hazardous materials, GPS tracking has become an increasingly important safeguard against security threats. But users must be aware of the technology's vulnerabilities and of the tools needed to ensure protection. | | | Integrity Hits the Road
| | Low-cost sensors and a Horizontal Trust Level (HTL) enable mobile-terminal applications requiring continuous quality of service in positioning and integrity. | | | Trust Your Receiver?
| | A tamper-resistant receiver can quantify the trust of a location solution and provide cryptographic proof to a remote application. | | | MORE ARTICLES
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| DIRECTIONS 2007: Military & Government
| | When peering into the future, a critical question is often whether civilian or military glasses perch upon the nose. Perspectives differ greatly regarding the genesis and intent of most major GNSSs as related to the military rather than the civilian world. | | | MORE ARTICLES
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| GPS Insights — March 2008
| | The recently released Defense Department Directive 4650.05 on Positioning, Navigation and Timing (PNT) serves as an update to an earlier version. It amounts to an evolution in formal guidance, nothing more, and the changes it incorporates should not come as a surprise to anyone. Especially anyone who has been keeping track of how GPS decisions have been made over the last few years ? least of all the United States Air Force (USAF), current stewards of space and of GPS, the largest government-funded, -maintained, and -supported constellation in space today. | | | GPS Insights — February 2008
| The Nomad Finds a Home in the Military
The "nomad" I am writing about is the Trimble Nomad personal handheld computer and GPS device. I have been testing the Nomad, which is actually built by Tripod Data Systems, a Trimble company, for some time. You might even call it a long-term test, just like the cars in the automobile magazines that they drive for a year to see if the wheels fall off. I have had two different Nomads to review, and they have both been absolutely outstanding. My total testing time has been on the order of six months. | | | GPS Insights — February 2008
| | Consider with me for a moment what navigators and warfighters of that day were able to ply as the tools of their trade. | | | GPS Insights — January 2008
| A Review of "Global Positioning System — Systems Engineering Case Study"
When was the last time you sat down in your favorite chair, in a nice quiet room with a warming fire in the fireplace and the snow falling gently outside, to read your favorite government report? I mean, when no one was holding a gun to your head? I can hear your responses now (with the expletives deleted). | |
| Space Foundation Sets Schedule for National Space Symposium
| | The Space Foundation's annual symposium will take place this April, with speakers including Michael W. Wynne, secretary of the U.S. Air Force (USAF), and Air Force General Victor E. Renuart, commander for NORAD/USNORTHCOM, the foundation announced earlier this week. | | | GPS Insights — January 2008
| | As you read this, we are about two weeks into 2008, and I hope you have a great year. Certainly for GPS World this is going to be a phenomenal year, if for no other reason than the myriad new developments surrounding GPS. And that’s part of what we will explore in this, my first column of the New Year. | | | MORE ARTICLES
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| Leadership Talks — Anomaly Response
| | Don Jewell, contributing editor for GPS World's military and government section, interviewed Col. Mark Crews (pictured above), chief engineer at the GPS Wing, U.S. Space Missile Command, regarding GPS anomalies that occurred in October 2007 that resulted in a great deal of concern in the international user and monitoring community. | | | Leadership Talks — Back to Basics
| | Colonel Dave Madden, the new GPS Wing Commander at the Space and Missile Systems Center at Los Angeles Air Force Base spoke with GPS World's contributing editor for military and government, Don Jewell, himself a former USAF commander at Schriever Air Force Base, deputy chief scientist at Air Force Space Command. and co-founder of the GPS Independent Review Team (IRT). | | | Leadership Talks — Wing Commander
| | GPS World spoke with Col. Wesley A. Ballenger, Jr. (CB), Commander, GPS Wing, Space and Missile Systems Center, U.S. Air Force, in his office on January 31. | | | MORE ARTICLES
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| Air Force Updating GPS Interface Docs for L5, L1C
| | The U.S. Air Force's Interface Control Working Group (ICWG) has recently released publicly-available draft versions of updated GPS Interface Control Documents. The documents specifically address the use of forthcoming new civilian signals. | | | Lockheed Martin Joins Northrop Grumman OCX Team
| | Lockheed Martin has joined Northrop Grumman Corp.'s team competing for the U.S. Air Force's (USAF) GPS Next Generation Control Segment (OCX) Phase B contract. | | | Raytheon Scores GPS Modernized User Equipment Contract
| | Raytheon Co. has won a $61 million U.S. Air Force contract from the GPS Wing to complete the development and certification of next-generation GPS receivers. | | | BAE Unveils Anti-Jamming GPS Receiver Tech
| | BAE Systems has developed a satellite navigation receiver system that provides uninterrupted GPS signal reception for air, land, and sea platforms and applications, the company said today. | | | GeoEye Earth Imaging Satellite Passes Tests
| | General Dynamics Advanced Information Systems, a business unit of General Dynamics, has completed satellite integration and environmental testing for GeoEye's next-generation earth imaging satellite, GeoEye-1. | | | Jules Verne Using GPS to Get Around – in Space
| | GPS can be used for more than terrestrial navigation, as the European Space Agency's (ESA) unmanned automatic transfer vehicle, Jules Verne, is proving | | | Raytheon Completes Review for New GPS Control Segment
| | Raytheon Co. has completed the system requirements review (SRR) for the U.S. Air Force for the next-generation GPS Control Segment (OCX), the company said today. | | | L-3 GPS Receiver Chosen for Guided Munitions
| | Alliant TechSystems, Inc. (ATK) has selected L-3 Interstate Electronics Corp.'s TruTrak Evolution (TTE) GPS receiver for its guidance system used in the U.S. Army's Precision Guidance Kit (PGK) program. | | | GPS-Guided Artillery Used in Afghanistan
| | KUNAR PROVINCE, Afghanistan — U.S. soldiers successfully fired the first 155 millimeter GPS-guided Excalibur artillery round here on February 25, according to the U.S. Army. | | | MORE ARTICLES
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| Piercing the Veil
| | A pseudolite system developed for the U.S. Army uses signals of opportunity to enable high-precision navigation in regions of GPS denial. | | | Get Ready, Get Set, Race!
| | Preplanning information about terrain is as important as real-time navigation for achieving peak performance in autonomous driving. Both preplanning and navigation — and key technologies to support them — helped the Carnegie Mellon Red Team successfully guide the robot vehicles Sandstorm and H1ghlander through the 2005 DARPA Grand Challenge course. | | | Radar'd Out
| | Commercial GPS equipment, often present in military applications, is not designed to survive in one of the world's harshest electromagnetic environments -- the topside of a modern naval warship. One ship's radar can often disable another nearby ship's GPS antennas. | | | Guided to Gather — Toy Plane Upgraded with Telemetry
| | GPS/INS and infrared optical sensors propel USGS's transformation of a remote-controlled one-quarter–scale recreational aircraft into a low-cost unmanned aerial vehicle designed for environmental particulate collection. | | | PPS versus SPS
| | Low-cost, civilian Standard Positioning Service (SPS) GPS technology can appear desirable for some military applications and even operational fielding. Significant concerns abound, however, including misunderstandings of operational tradeoffs and increased exposure to specific threats. | | | MORE ARTICLES
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| Make Every Shot Count
| | GPS technology helped the U.S. Air Force take out al-Qaeda leader Abu Musab Al-Zarqawi in a June 14 airstrike. "GPS provides the precision timing and navigation absolutely instrumental in both protecting our troops on the ground and taking out the bad guys," said an Air Force brigadier general. | |
| Guided to Gather — Toy Plane Upgraded with Telemetry
| | GPS/INS and infrared optical sensors propel USGS's transformation of a remote-controlled one-quarter–scale recreational aircraft into a low-cost unmanned aerial vehicle designed for environmental particulate collection. | | | More Bang, Less Buck
| | A new naval stand-off combat capability demonstrates precision-guidance of long-range, gun-fired projectiles in support of ground maneuver warfare. | | | Cutting-Edge Technology
| | Three teams of engineering students from universities in the Midwest design and field test robotic 'green machines' leveraging GPS receivers, navigation sensors, and command-and-control software. | | | MORE ARTICLES
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| Navigation in a Nugget
| | The Navigation Nugget, first GPS receiver in the world to incorporate a chip-scale atomic clock, will transform designs for the future, enabling warfighters and warfighting platforms to navigate in waters and terrains that can be unattainable with current standalone GPS receivers. | | | Robotic Fighters Coming in on GPS
| | A recent simulated test of military UAVs demonstrated one more envisioned GPS role in military operations. As part of the J-UCAS program, Northrop Grumman performed a test of simulated, simultaneous control of four X-47B UAVs on September 28, 2005, at the Naval Air Warfare Center Weapons Division in China Lake, California. | | | PPS versus SPS
| | Low-cost, civilian Standard Positioning Service (SPS) GPS technology can appear desirable for some military applications and even operational fielding. Significant concerns abound, however, including misunderstandings of operational tradeoffs and increased exposure to specific threats. | | | Stanford Robot Vehicle Takes the Prize
| | Stanley covered the 131-mile Mojave Desert course in 6 hours, 53 minutes, 8 seconds, at an average speed of 19.1 miles per hour — good enough for $2 million. | | | The Challenges of M-Code at JPO
| | Col Rick Reaser Jr., Deputy System Program Director for the GPS JPO, and fellow officers speak about the Modernized User Equipment program. | | | Single-Source MUE Effort at JPO
| | The GPS Joint Program Office (JPO) has launched an initiative to shift all work on Modern User Equipment (MUE) to a single contractor, citing budget constraints. | | | Melee in the Mojave
| | Forty driverless vehicles equipped with GPS receivers and other sensors prep for a 175-mile trek across the desert in the Defense Advanced Research Project Agency's (DARPA's) $2 million Grand Challenge. | | | MORE ARTICLES
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