Inside GNSS Media & Research

MAR-APR 2018

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www.insidegnss.com M A R C H / A P R I L 2 0 1 8 Inside GNSS 57 FIGURE 10 Side-by-side C/No comparison, shows how RF performance changes with different designs. com Corp., Irvine, CA. e GnssTools smartphone app, and GNSS Analysis desktop tools are from Google Inc., Mountainview, CA. Additional Resources [1] "GPS Status", S. Whitney, ION GNSS+ 2017, Sep 2017, Portland, OR. [2] "Galileo Authentication,Interoperability & Accu- racy", Marco Falcone, RIN INC 2017, Nov 2017, Brighton, UK. Authors Frank van Diggelen is a Principal Engineer at Google, where he leads the Android GNSS team. Previously he worked at Broadcom and Global Locate where he and a small group of friends creat- ed the technology that put GNSS in smartphones. Their chips were the first GPS in any smartphone, the first in iPhone, the first GPS+GLONASS, and the first full GNSS in phones. Frank has over 90 issued US patents on A-GNSS, and is the author of the textbook: "A-GPS". He received his Ph.D. at Cambridge Uni- versity, and he teaches GPS at Stanford University. Mohammed Khider is a senior software engineer at Google, in the Android GNSS team that works on i m p ro v i n g p o s i t i o n i n g accuracy of mobile devices in challenging indoor and ur ban canyon environ- ments. He received his PhD in Electrical Engineer- ing with focus on "Multisensor based Positioning for Pedestrian Navigation" from the University of Ulm, Germany. Previously a Research Associate at the Institute of Communication and Navigation at the German Aerospace Center (DLR). Mohammed has been actively involved in the field of location and context for over 11 years. His research inter- ests are navigation, multi-sensor fusion, mobility models, signal processing and context-aware ser- vices. Delivering Aviation Approved GPS Solutions…Worldwide. www.aspennexnav.com Copyright 2017 Aspen Avionics Inc. "Aspen Avionics," "NexNav", "MAX," "Micro-i," and the Aspen Avionics aircraft logo are trademarks of Aspen Avionics Inc. All rights reserved. U.S. Patent No. 8,085,168, and additional patents pending. Approved NexNav ™ GPS solutions for the aerospace industry have a well-proven track record in civil and military, manned and unmanned applications. • GPS-SBAS circuit card assemblies and GPSSUs • Small size, lightweight and low power consumption • Approved for ADS-B OUT position source • Approved for enroute, terminal and approach GPS navigation • Products meet all expected GPS requirements for UAS BVLOS operations • Made in U.S.A. • Go to www.aspennexnav.com for more information Compact Size • Small size, lightweight and low power consumption • Approved for ADS-B OUT position source • Approved for enroute, terminal and approach GPS navigation • Products meet all expected GPS requirements for UAS BVLOS operations

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