From the Magazine

UAV inspections: Using drones for powerline monitoring in India

October 22, 2016By

Drones could soon be inspecting powerlines in India, thanks to a partnership between Sharper Shape and Sterlite Power. Sharper Shape, based in Palo-Alto, California, offers automated drone-based asset inspections. Sterlite Power is a power transmission company in India. Sharper Shape has already spearheaded the adoption of long-distance commercial drone flights for utilities in Europe. In the U.S., Sharper Shape is... read more

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

October 21, 2016By

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... read more

DJI joins Propeller Aero on turnkey solutions

October 19, 2016By

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... read more

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Research: GNSS receiver fingerprinting

October 17, 2016By

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... read more

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Innovation: Getting there safely with chip-scale atomic clocks

October 12, 2016By and
FIGURE 2. Test track. The yellow ellipse marks a treed lane with signal obstructions.

Better GNSS Navigation and Spoofing Detection with Chip-Scale Atomic Clocks It’s all physics. How things work, that is. You’ve heard me say that before in this column, but I suppose I’m a little biased (or realistic) as my first degree is in physics — applied physics, to be more precise. Mind you, some chemists might disagree that it’s all down to... read more

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Automotive abstract: INS to protect against GNSS spoofing

October 6, 2016By

Using Tactical and MEMS Grade INS to Protect Against GNSS Spoofing in Automotive Applications By Sashidharan Manickam and Kyle O’Keefe PLAN Group, Department of Geomatics Engineering, University of Calgary This paper analyzes the GNSS signal authentication limits in using different grades of IMU (Tactical and MEMS) to detect errors in combination with different grades of GNSS receiver (Geodetic grade and... read more

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Centimeter positioning for UAVs and mass-market applications


UAVs, precision agriculture and robotic guidance require high accuracy at low cost.   Emerging high-volume markets call for RTK technologies previously limited to niche markets by complexity and cost. This article discusses design and implementation of a very precise RTK-based module solution while maintaining cost, size and power consumption as low as possible. Several tests under a range of signal... read more

Research: MEMS IMU carouseling for ground vehicles

September 13, 2016By

Micro-electromechanical system (MEMS) gyroscopes have advantages for orientation sensing and navigation as they are small, low cost and consume little power. However, the significant noise at low frequencies produces large orientation errors as a function of time. Controlled physical rotation of the gyroscope can remove the constant part of the gyro errors and reduce low-frequency noise. As adding motors for... read more

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