Author: GPS World Staff

  • How to dissolve funding logjams in Congress

    [Editor’s note: This is the Signals Leadership Award acceptance speech given by Clark Cohen at GPS World’s 2016 Leadership Dinner in September. The Award was recognized the development of alternates to GPS based on communication satellites: a method for adding high-accuracy ranging capability to Iridium by modifying the transmitted signal structure of an already flying, programmable constellation. ]

    Thank you GPS World, industry sponsors, and colleagues who engaged in the selection process. I appreciate the honor.

    The Advanced Waveform was the second and most ambitious broadcast that we developed for the DoD-sponsored iGPS program. It is a wide-bandwidth (10 MHz maximum spectrum allocation), near-white, high-power broadcast with independently resolvable code and carrier capable of illuminating regions of the world at any time. Yet Iridium was never designed for navigation.

    I am grateful to the Naval Research Lab, the Office of the Secretary of Defense, Boeing, and Iridium for their support. Also, many capable people comprised our team. Completeness is impossible, but I’ll highlight the efforts of Dick Cervisi, Kamran Ghassemi, Ann Stevens, Robert Scholl, Tom Guffey, Bernie McCormick and Mark Psiaki.

    The commercial Iridium constellation is built on billions of dollars of private capital. Meanwhile, the iGPS overlay required Congressional appropriation. But if the technical part weren’t challenging enough, the politics were, in my view, a bit too hard.

    My topic is the future of public-private partnerships. Such partnerships include the GPS space and ground segments and most other government projects. Our broken, inflexible Congress is not helping. My answer here for the family dinner table is not political — it’s structural, non-partisan, systems engineering.

    We can do better than handicapped innovation, winner-take-all procurements, Nunn-McCurdy triggers, continuing resolutions, debt-limit brinksmanship and government shut-downs. This is not to judge people. Good people are operating under imperfect rules.

    House elections now resemble a stuck, one-bit, analog-to-digital converter. Hundreds of individual races, cumulate the equivalent of input noise and bias, rendering the House largely unresponsive to voters. Consent of the governed demands a healthy, moderating feedback loop from people to representatives to laws and back. Cutting this loop spells trouble.

    A major root cause of dysfunction is winner-take-all, single-member districts. Geographical voting made sense in the 18th century. But in an increasingly complex, connected world, where you live is no longer a stand-in for what you think.

    We need to start dissolving district boundaries themselves. An elegant approach is aggregating adjacent single-member districts into larger multi-winner “super districts” with three to five members each. A refinement called Ranked Choice Voting eliminates spoiler hazard and incentivizes positive campaigns. No change to the Constitution is needed — only passing a law.

    We should reset our expectations. Congress should be able to pass the nation’s budget on time every time. We don’t need drama around GPS modernization, backup terrestrial navigation, and spectrum protection. And America should boldly pioneer aspirational, cathedral-and-moonshot-scale, public-private initiatives.

    Working hard and playing by the rules implies a value-added, positive-sum relationship with society. But to the extent that the rules are imperfect, don’t vestiges of zero-sum exchange imply collateral damage somewhere in society? Voters are rebelling by the millions. We should pay attention. America’s defining Revolutionary War was fought over taxation without representation.

    Whether applied to sword or plowshare, precision feedback from GPS provides guidance to help minimize collateral damage. Updated voting rules will do the same for the nation. Everyone benefits from more efficient and effective execution. Yet perhaps our greatest harvest — should we choose to claim it for ourselves and our children — will follow from sowing new seeds of discovery and innovation through public-private partnerships on a vast and visionary scale.

     

  • 12 miles to life: Chesapeake Bay flight shows role for UAS in emergencies

    The University of Maryland (UMD) Unmanned Aircraft Systems (UAS) Test Site, along with and Shore Regional Health, conducted on Aug. 24 the state’s first civil unmanned aerial delivery of simulated medical cargo. Engineers from UMD flew a Talon 120LE fixed-wing aircraft across the Chesapeake Bay with saline solution simulating four vials of Epinephrine to demonstrate the key role that UAS can play in emergency situations.

    First Responsders. “This is a major achievement for our test site and for the University of Maryland,” said Darryll Pines, dean of the School of Engineering. “What this flight demonstrates is the incredible potential that UAS have in assisting first responders in emergencies. As more of these aircraft enter the skies, demonstrations of their use in service to humanity will grow substantially.”

    Weighing 22 pounds at take-off, the small UAS was hand launched from the shores of Flag Ponds Nature Park in Lusby, and landed at Ragged Island Private Airport in Cambridge, flying 12 miles over 28 minutes. The flight was autonomous with man-on-the-loop with ability to intercede.

    The UAV was greeted by a security officer from Shore Regional Health who retrieved the package and transported it to the Shore Medical Center at Dorchester.

    “We wanted to simulate a situation when weather, traffic or other disaster made more traditional means of transportation impossible. UAS are faster to deploy, less weather dependent and less expensive,” said Matthew Scassero, director of the UMD UAS Test Site.

    Flight path as recorded by aircraft GPS. The loiter midway allowed confirmation of the radio monitoring/control signal handoff. Loiter will not be necessary for operational flights.(Image: UMD)
    Flight path as recorded by aircraft GPS. The loiter midway allowed confirmation of the radio monitoring/control signal handoff. Loiter will not be necessary for operational flights.(Image: UMD)

    The test also helped Shore Regional Health explore new ways of providing access to medical care to rural areas, according to William Huffner, Shore’s chief medical officer. UAS technology has the potential to bring supplies not only to medical staff, but also directly to patients in isolated areas.

    “In emergency situations, every second counts,” Scassero said. “Imagine being able to deploy insulin or another critical medication to someone in need by landing or dropping it right in their backyard.”

    Talon UAV. The Talon 120LE is made of 7075 aircraft-grade aluminum, foam and composite materials. Scassero said that the team chose a Talon 120LE because of its “payload capacity, stability and reliability.” With an endurance of greater than two hours, its modular nose payload section and wing pods, it can carry payloads up to 2.5 pounds. The aircraft flies autonomously and lands on its belly.

    Scassero said the use of UAS will be critical in future emergencies. “Using UAS for cargo will allow them to operate in tandem with manned aircraft to work together for these types of humanitarian missions and others, such as search and rescue,” he said.

    Next Steps. Following this successfull test, the test site is looking at different operational control paradigms (suc as network or satellite), health IT cueing of the system, different vehicles for various applications, and different flight environments.

    GPS ground speed. (Figure: UMD)
    GPS ground speed. (Figure: UMD)
  • Buckeye Mountain, Trimble bring GPS to railways

    Railway technology company Buckeye Mountain and Trimble are working together to provide the railroad industry with advances in GPS solutions such as the Trimble PG200 GNSS receiver.

    The PG200 is a rugged, lightweight and portable receiver to use in rail and intermodal yards to identify safety zones. It also includes auto tracking on critical assets.

    Juno-T41_Grey_WEH_face-WTrimble has also been working with Buckeye Mountain to provide the railroad industry with mobile computing and AEI (railcar automatic equipment identification tags) products.

    Trimble’s Juno T41 R-AEI, an all-in-one rugged AEI reader, is a compatible platform for Buckeye Mountain’s AEI Quick Read application, a basic mobile application that reads AEI tags.

    The T41 keeps workers the required safety distance from railcars while the read range is very responsive.

  • DJI joins Propeller Aero on turnkey solutions

    DJI joins Propeller Aero on turnkey solutions

    See also Propeller Aero’s ground-control points aim for UAV accuracy.


    Drone-maker DJI has partnered with UAV software company Propeller Aero to launch an integrated solution to reduce costs, improve safety and drive operational efficiency in the construction and mining industries.

    The partnership integrates DJI’s commercial-grade aerial platform, the Matrice 100, with Propeller’s cloud-based software specifically designed for surveying and inspection.

    The solution provides enterprises and commercial UAV operators a simplified, quick and efficient way to automate operations and access data. It will enable businesses to accurately perform site measurements and volumetrics and share data seamlessly with just a few clicks, the companies said.

    Rory San Miguel (left) and Francis Vierboom, co-founders and CEOs of Propeller Aero, display the new Aeropoints product. (Photo: Propeller Aero)
    Rory San Miguel (left) and Francis Vierboom, co-founders and CEOs of Propeller Aero, display the new Aeropoints product. (Photo: Propeller Aero)

    Sydney Start-Up. Propeller Aero was founded in 2013 in Sydney, Australia, when Rory San Miguel and Francis Vierboom first got hooked on drone technology. They wanted to bring drones to industries like mining and construction, where they thought the technology was really going to “grow up.”

    They set about joining Australia’s regulated drone industry by applying for their drone pilot licenses. While waiting for the paperwork, they created an online app to share data from their trial flights.

    Figuring out the best ways to process, visualize and use UAV data ended up being more exciting to San Miguel and Vierboom than actually flying the drone.

    Propeller Aero provides cloud-based software that streamlines data processing and simplifies the way data is used and shared. The software package provides web-based geospatial data processing, analytics and instant volumetric calculations for a range of professional applications. It has been adopted by commercial drone operators and enterprise clients in 60 countries.

    Deploying UAVs for surveying and inspection can reduce costs, minimize workplace hazards and improve operations, especially for businesses that operate in quarries, construction sites and asset infrastructure.
    “Being from Australia, Propeller Aero has had the considerable advantage of developing alongside the industries that have been using commercial UAVs since 2002,” said Michael Perry, DJI’s director of strategic partnerships.

    DJI’s Matrice 100. The Matrice 100 platform has DJI’s technology built in, including GPS, the flight controller, the propulsion system, DJI Lightbridge, a dedicated remote controller and a rechargeable battery. The system automatically manages complex tasks required for flight.

  • Propeller Aero’s ground-control points aim for UAV accuracy

    Propeller Aero’s ground-control points aim for UAV accuracy

    Aeropoints are desgined for for companies across the industrial sector — including mining, construction, quarries and landfills.
    Aeropoints are desgined for for companies across the industrial sector — including mining, construction, quarries and landfills.

    Propeller Aero has introduced AeroPoints — smart ground-control points designed to make it easy to capture survey­accurate mapping using drones.

    The patent-­pending technology provides a simple solution to a major roadblock to widespread commercial drone adoption: accuracy.

    Typical ground control requires establishing precise geolocation position using surveying equipment, and then securing a visible ground marker exactly on the pre­-marked GPS point.

    AeroPoints are portable ground-control markers, visible from the air and capable of quickly capturing their own positions down to 2-centimeter absolute accuracy.

    AeroPoints work with any camera or drone, and integrate seamlessly with Propeller’s cloud­-based data platform and processing engine (see above story). They’re solar­-powered, durable and weather­ resistant, and they don’t require any on­site connection.

    To use AeroPoints, customers simply lay them down, fly their drone, and then pick them up again. They automatically connect to a wireless or mobile hotspot when back in range to upload captured positional data — and precision georeferencing is done.

    See also DJI joins Propeller Aero on turnkey solutions.

  • Last day to take jamming poll

    The October readers poll asks “Are You Experienced?”  It closes today. Take 30 seconds to give your jamming, spoofing, and/or other RF interference history, and enter a drawing to win $50 gift card.

    The poll asks — and this is all it asks —

    Have you directly experienced any of the following? Check all that apply.

    GPS/GNSS jamming.

    GPS/GNSS spoofing.

    Unintentional RF Interference.

    RF interference from unknown source; unknown whether intentional or not.

    None of the above.

    Other, please specify.

  • L-3 completes GPS military code security certification

    L-3 Communications has announced that its next-generation military code (M-code) GPS user equipment has successfully completed the final step in a government security certification process.

    L-3’s M-code GPS features advanced user equipment technology, increasing soldiers’ ability to resist enemy jamming and spoofing and performing significantly better in contested environments. The development and certification of this technology was performed under the Air Force Military GPS User Equipment (MGUE) program led by the GPS Directorate within the Space and Missile Systems Center (SMC) at Los Angeles Air Force Base.

    The certification review was performed by an independent government review team, with a focus on the security design of the L-3 GPS user equipment. The goal of these new security standards is to further protect the integrity of the navigation and timing solutions and provide required safeguards for critical information inside GPS user equipment. Work on this project will be done by L-3 Interstate Electronics Corporation (L-3 IEC), which is part of the Precision Engagement & Training sector within L-3’s Electronic Systems business segment.

    “We are pleased to be the first DoD contractor to complete security certification for our new M-code GPS user equipment,” said Michael T. Strianese, L-3’s chairman and chief executive officer. “L-3 is ahead of the technology curve, and we are delivering critical innovations that have significant applications inside DoD markets and on several U.S. Army initiatives. Timely delivery of these advancements to the warfighter is essential as they respond to current and emerging threats on the battlefield.”

    Based in Anaheim, California, L-3 IEC is provider of positioning, navigation and timing products and solutions and long-term supplier of critical navigation, test instrumentation and missile tracking systems for the U.S. Navy’s Fleet Ballistic Missile (FBM) weapon systems, including the Trident submarine.

  • Research: GNSS receiver fingerprinting

    The U.S. Department of Transportation booth at ITS America focused on the connected car.
    The U.S. Department of Transportation booth at ITS America focused on the connected car.

    GNSS Receiver Fingerprinting for Security-Enhanced Applications

     
    By Daniele Borio, Ciro Gioia, Gianmarco Baldini and Joaquim Fortuny, European Commission, Joint Research Centre (JRC), Directorate E: Space, Security & Migration. Presented at ION GNSS+, September 2016.

    GNSS data faking is similar to node forgery in a wireless network: A simulator or another device can be used to impersonate an actual GNSS receiver in a system which uses GNSS services. In this way, misleading Position, Velocity and Time (PVT) information can be send to the final PVT user in the system. To mitigate the risk of GNSS data faking, GNSS receiver fingerprinting can be adopted in security-enhanced applications to verify, at least to a certain extent, the authenticity of GNSS data.

    For example, the injection of GNSS fake data in an Intelligent Transport Systems (ITS) vehicle platform could be identified using GNSS receiver fingerprinting.

    This paper investigates the potential of receiver clock bias and drift as sources of features for fingerprinting. In particular, several features, including Allan Deviation (ADEV), maximum and Root Mean Square (RMS) Time Interval Error (TIE) and correlation of the clock time series, have been investigated. The potential of the different features has been empirically investigated. It shows that three features are sufficient to discriminate the different receiver types. In particular, the ADEV and the Maximum TIE (MTIE) at 1 second, and the correlation value at 20 seconds have been selected for fingerprinting. These features allow one to effectively cluster the different receiver types and to build a “white list” for receiver identification.

  • NovAtel’s RTK Assist provides 20 minutes of accuracy

    NovAtel introduced its RTK Assist service at the Intergeo show, held this week in Hamburg, Germany.

    RTK Asssit is a subscription-based service that provides users with satellite-delivered correction data to seamlessly continue centimeter-level accuracy during real-time kinematic (RTK) correction outages caused by communication disruptions. Users are able to maintain RTK level performance for up to 20 minutes, reducing any associated downtime and optimizing solution productivity.

    RTK is a well-established method of achieving cm-level accuracy with GNSS. However, if the RTK correction data link to the receiver is interrupted, performance degrades quickly. RTK ASSIST subscribers are able to maintain the accuracy of their positioning solution during these interruptions, avoiding any down-time. RTK ASSIST is best suited for applications where there are potential obstructions, dead spots or baseline limitations that would cause RTK network correction losses for short periods of time.

    Neil Gerein, Portfolio Manager for NovAtel stated, “Combining NovAtel’s long history of expertise in RTK positioning with correction data delivered directly to the receiver via satellite allows for a continuous centimeter-level solution that is globally available 24/7.”

  • Rwanda launches national drone delivery service

    Rwanda launches national drone delivery service

    Up To 150 Emergency Medical Drone Flights a Day

    Today, Rwandan President Paul Kagame launched what is considered world’s first national drone delivery service during a ceremony in the country’s centrally located Muhanga District.

    Starting today, the Rwandan government will begin using drones to make up to 150 on-demand, emergency deliveries per day of life-saving blood to 21 transfusing facilities in the western half of the country.

    The drones and delivery service are built and operated by Zipline, a California-based robotics company.

    While Rwanda’s drone delivery service will initially focus on blood, an international partnership between UPS, Gavi, the Vaccine Alliance and Zipline will help the country quickly expand the types of medicines and lifesaving vaccines that can be delivered.

    “Drones are very useful, both commercially and for improving services in the health sector. We are happy to be launching this innovative technology and to continue working with partners to develop it further,” said Rwandan President Paul Kagame.

    The Global Problem

    Throughout the developing world, access to lifesaving and critical health products is hampered by what is known as the last-mile problem: the inability to deliver needed medicine from a city to rural or remote locations due to lack of adequate transportation, communication and supply chain infrastructure.

    rwanda-delivery-uav-2-wIn Rwanda, postpartum hemorrhaging is the leading cause of death for pregnant women. Blood requires storage and transport at safe temperatures and spoils quickly. Because there are many different blood products and no way to accurately project future needs, many transfusion clinics do not keep all the blood they may need in stock.

    During Rwanda’s lengthy rainy season, many roads wash out becoming impassible or non-existent. The result is that all too often someone in need of a lifesaving transfusion cannot access the blood they need to survive.

    The Solution

    Rwanda’s national drone delivery program enables blood transfusion clinics across the Western half of the country to place emergency orders by cell phone text message. The orders are then received by Zipline at its distribution center located in the country’s Muhanga region where the company maintains a fleet of 15 drones, called Zips.

    Each Zip can fly up to 150 km round trip — even in wind and rain — and carry 3.3 pounds of blood, which is enough to save a person’s life. Zips take off and land at the distribution center, and make deliveries by descending close to the ground and air dropping medicine to a designated spot called a “mailbox” near the health centers they serve. Zipline will make 50 to 150 emergency flights a day to 21 transfusion clinics across the western half of Rwanda and can fulfill orders in about 30 minutes.

    Rwanda plans to expand Zipline’s drone delivery service to the Eastern half of the country in early 2017, putting almost every one of the country’s 11 million citizens within reach of instant delivery of life-saving medicines.

    “The inability to deliver life-saving medicines to the people who need them the most causes millions of preventable deaths each year around the world. Zipline will help solve that problem once and for all,” said Zipline CEO Keller Rinaudo. “We’ve built an instant delivery system for the world, allowing medicine to be delivered on-demand and at low-cost, anywhere.”

    Rwanda and Beyond

    The commercial partnership between Rwanda and Zipline is expected to save thousands of lives over the next three years. Through this effort, Rwanda is using the technology to leapfrog the absence of road infrastructure and to provide healthcare access to all its 11 million citizens.

    The work in Rwanda is being further supported by an international partnership between Zipline, UPS and Gavi, the Vaccine Alliance. Thanks to a $1.1 million (USD) grant from the UPS Foundation, the partnership will study Rwanda’s blood drone delivery operation with an eye towards helping the country quickly expanding the types of medicines and lifesaving vaccines that can be delivered.

    Leveraging UPS’s extensive global supply chain and logistics expertise, Gavi’s deep public health and vaccine knowledge, and Zipline’s cutting edge last-mile delivery technology, the partnership hopes to use the knowledge gained in Rwanda and export it around the world.

    “Drones have the potential to revolutionise the way we reach remote communities with emergency medical supplies. The hours saved delivering blood products or a vaccine for someone who has been exposed to rabies with this technology could make the difference between life and death,” said Seth Berkley, CEO of Gavi, the Vaccine Alliance. “This project will also act as an important test for whether drones are a viable way to improve targeted vaccine delivery around the world. Every child deserves basic, lifesaving vaccines. This technology could be an important step towards ensuring they get them.”

    UPS’s logistics expertise and resources are expected to play a critical role in helping the partnership to expand the reach of this important work. The company was actually able to transport the entire Zipline system from California to Rwanda in record time in a “Browntail” cargo plane, helping to ensure Zipline’s distribution centre could be constructed in just four weeks.

    “One of the most important focus areas for The UPS Foundation is to spark public-private partnerships that create powerful scale and drive demonstrable impact in support of global humanitarian aid and relief,” said Eduardo Martinez, president of The UPS Foundation and chief diversity and inclusion officer at UPS. “The shared belief in the ability to save lives through applied innovation, combined with Rwanda’s vision, is now not only poised to advance humanitarian logistics — and logistics as we know it — around the world, but also to save lives. Now is when our partnership between The UPS Foundation, Gavi and Zipline counts most, as we see the first operational missions dedicated to shipping lifesaving blood, and keep our eye on what the future can bring for other life-saving commodities, as well as for other parts of the world.”

    Over the course of the next year, and with the support of the partnership with UPS and Gavi, Zipline plans to expand drone delivery services to countries across Africa and the Americas. Additionally, Zipline recently announced plans at the White House to expand its service to the United States, where it will serve Indian reservations in Maryland, Nevada and Washington State.

  • Raytheon, US Air Force complete GPS OCX test milestone

    Raytheon, US Air Force complete GPS OCX test milestone

    Raytheon has reached another milestone in its development of the U.S. Air Force’s Global Positioning System Next Generation Operational Control System, known as GPS OCX. This new system offers significant improvements to the GPS on which the U.S. military and millions of civilians rely, including enhanced availability, accuracy and security.

    OCX’s development is delivered in “blocks,” with Block 0 comprising the Launch and Checkout System to take GPS III satellites into early orbit. Block 1 is built on Block 0 and delivers the full OCX capability, which allows the Air Force to transition from its current GPS ground controls to the modernized and secure GPS OCX master control station.

    Testing demonstrates end-to-end functional checkout, integration of Block 1 capabilities.(Image: Raytheon)
    Testing demonstrates end-to-end functional checkout, integration of Block 1 capabilities.(Image: Raytheon)

    Raytheon recently completed a series of Risk Reduction functional checkouts of OCX Block 1 capabilities, with a focus on OCX software. This latest development activity integrated iteration 1.5 of the OCX Block 1 Master Control Station with the GPS System Simulator and ran operational scenarios, representing the first end-to-end integration of available Block 1 capabilities. The testing included GPS constellation management and sustainment, demonstrating OCX’s abilities for precision navigation and timing capabilities in a fully cyber-hardened environment.

    The test included running Kalman filters and generating GPS satellite navigation uploads. The completion of the Risk Reduction functional checkout informs and benefits future OCX development efforts. Future development will add to the existing capability and expand capability to include both the civil and military modernized signals.

    The U.S. Air Force-led GPS Modernization Program will yield new positioning, navigation and timing capabilities for both the U.S. military and civilian users across the globe. GPS OCX is being developed by Raytheon under contract to the U.S. Air Force Space and Missile Systems Center, which is replacing the current GPS operational control system.

    GPS OCX provides a number of significant modernized capabilities for GPS users, including robust cybersecurity and deployment of jam-resistant, operational military code, or M-code. The OCX Launch and Checkout System provides an early delivery of much of the overall block 1 OCX capability, and will support the GPS III satellite launches.

  • UC Riverside team developing non-GPS nav system for autonomous vehicles

    A team of researchers at the University of California, Riverside has developed a highly reliable and accurate navigation system that exploits existing environmental signals such as cellular and Wi-Fi, rather than GPS.

    The technology can be used as a standalone alternative to GPS, or complement current GPS-based systems to enable highly reliable, consistent, and tamper-proof navigation. The technology could be used to develop navigation systems that meet the stringent requirements of fully autonomous vehicles, such as driverless cars and unmanned drones.

    Led by Zak Kassas, assistant professor of electrical and computer engineering in UCR’s Bourns College of Engineering, the team presented its research at the 2016 Institute of Navigation Global Navigation Satellite System Conference (ION GNSS+), in Portland, Ore., in September. The two studies, “Signals of Opportunity Aided Inertial Navigation” and “Performance Characterization of Positioning in LTE Systems,” both won best paper presentation awards.

    Most navigation systems in cars and portable electronics use the space-based GNSS. For precision technologies, such as aerospace and missiles, navigation systems typically combine GPS with a high-quality on-board inertial navigation system (INS), which delivers a high level of short-term accuracy but eventually drifts when it loses touch with external signals.

    Despite advances in this technology, current GPS/INS systems will not meet the demands of future autonomous vehicles for several reasons: First, GPS signals alone are extremely weak and unusable in certain environments like deep canyons; second, GPS signals are susceptible to intentional and unintentional jamming and interference; and third, civilian GPS signals are unencrypted, unauthenticated and specified in publicly available documents, making them spoofable. Current trends in autonomous vehicle navigation systems therefore rely not only on GPS/INS, but a suite of other sensor-based technologies such as cameras, lasers and sonar.

    “By adding more and more sensors, researchers are throwing ‘everything but the kitchen sink’ to prepare autonomous vehicle navigation systems for the inevitable scenario that GPS signals become unavailable. We took a different approach, which is to exploit signals that are already out there in the environment,” Kassas said.

    Here is a video describing the project.