Abstract SubmissionAbstracts should be submitted electronically via the ION Abstract Management Portal, no later than October 10, 2017. To submit an abstract, sign in at www.ion.org/abstracts. If you have not used the Abstract Management Portal before, click “Create My Account.” Once signed in, click on the appropriate meeting name and complete the form. • Abstractsshoulddescribeobjectives,anticipatedoractual

results, conclusions, any key innovative steps and the significance of your work.

• Authorswillbeprovidedwithanelectronicauthor’skitwithpresentation and publication guidelines in early November.

• Allauthorsattendingthemeetingarerequiredtopay registration fees.

Final ManuscriptsITM Peer Reviewed Sessions: Completed manuscripts must be uploaded to the Abstract Management Portal (AMP) by December 1, 2017. Manuscripts will be peer reviewed by session co-chairs and designated as a primary paper, or as an alternate paper, in the onsite program based on peer review of the full manuscripts. Manuscripts not received by December 1, 2017 are subjecttowithdrawalfromtheconference.Manuscriptsmeetingestablished peer review standards will be designated as “peer reviewed” in the conference proceedings. Manuscripts will only be peer reviewed one time. Authors will be given the opportunity to make corrections/revisions to their manuscripts for inclusion in the proceedings through February 9, 2018. However, revised manuscripts will not be re-reviewed for peer-review designation.To be included in the conference proceedings:

1. Manuscripts must be uploaded into AMP by December 1, 2017.2. The submitted manuscript must be representative of the

original abstract submitted.3. An author listed on the manuscript must present at the

conference and pay the conference registration fee. 4. The presenting author must attend the mandatory speakers

breakfast the morning of their session.PTTI Sessions: PTTI papers will not be peer reviewed. Papers not representative of the original abstract submitted will not be included in the conference proceedings regardless of whether or not they were presented at the conference; and this may affect the acceptance of future abstracts by the author. Manuscripts will be accepted through February 9, 2018.To be included in the conference proceedings: 1. Manuscripts must be uploaded into AMP by February 9, 2018.2. The submitted manuscript must be representative of the

original abstract submitted.3. An author listed on the manuscript must present at the

conference and pay the conference registration fee. 4. The presenting author must attend the mandatory speakers

breakfast the morning of their session.

Journal PublicationAuthors of appropriate papers are encouraged to submit papersforpossiblepublicationintheION’sarchivaljournal,NAVIGATION (indexed by Thomson Reuters). Papers may be submitted for publication online at http://mc.manuscriptcentral.com/navigation.

Exhibit HallExhibitspaceisavailable.Boothsaresoldin10’×10’incrementsand include one full complimentary conference registration per booth purchased. For an exhibitor prospectus, or for more information, go to www.ion.org/itm/exhibits.cfm or contact Megan Andrews at the ION National Office via phone at 703-366-2723 or email at mandrews@ion.org.

Registration InformationAll full-conference registrations include technical sessions, conference meal functions and events, and access to electronic proceedings. Registration for tutorials will be additional. Individual registration benefits are non-transferable. Registration fees for registrants staying at the Hyatt Reston, that are received and paid by January 8, start at:

• MemberRate:$930• Non-memberRate:$1010• StudentRate:$400• RetiredRate:$400(emailregistration@ion.orgforform)• SingleDayRate(sessionsonly,noproceedings):$460

Student Conference Registration GrantsStudentconferenceregistrationgrantswillbeawardedona“needbasis.” The registration grant will include a full technical meeting registration to include all conference sessions, meal functions and a copy of the conference proceedings. Full-time graduate or undergraduate students who are the lead and presenting author of worthy technical paper(s) are encouraged to apply. Grants are limited and are awarded on a first come, first served basis to those meeting the criteria. Prior grant recipients are not eligible. An application must be submitted with an abstract no later than October10,2017.Seewww.ion.orgfordetails.

Accommodations Accommodations are offered at the Hyatt Regency Reston. A block of rooms has been set aside for conference attendees at the discountedrateof$199pernightforsingle/doubleoccupancy.These rooms will be available until January 8, 2018, or until the block fills up, whichever comes first. Alimitednumberofgovernmentrateroomsforqualifiedfederalagencies are also available. Reservations made after January 8 will be on a space-available basis and may not be at the special ION rate. We strongly encourage you to make your hotel reservations early.Save$200onyourregistrationfeesbystayingatthe conference hotel. All attendees who stay at the Hyatt Reston and submit their hotel confirmation number at the time of conference registrationwillreceivea$200discountwhenregisteringfortheconference. Hotel discounts cannot be applied retroactively.

Make Your Hotel Reservation Today:• Online:www.ion.org• ByPhone:Call+1-703-709-1234.Besuretoidentify

yourself as an ION ITM/PTTI attendee to receive the discounted attendee rate.

CALL FOR ABSTRACTS: ABSTRACTS DUE OCTOBER 10, 2017

www.ion.org

ION ITM AND PTTI 2018 TECHNICAL COMMITTEE

ITM General ChairDr. André Hauschild German Aerospace Center (DLR), Germany

ITM Program ChairDr. Jiyun Lee KAIST, South Korea

PTTI General ChairRyan DupuisExcelitas Technologies

PTTI Program ChairJames HanssenU.S. Naval Observatory

PTTI Tutorials ChairMichael Coleman Naval Research Laboratory

Non-profitU.S.Postage

PAIDSouthern,MD

Permit No. 425

THE INSTITUTE OF NAVIGATION8551RixlewLane,Suite360Manassas, VA 20109

®

One Registration Fee, Two Technical Events and a Commercial Exhibitwww.ion.org

ITM/PTTI2018

International Technical Meeting • Precise Time and Time Interval Systems and Applications

January 29 - February 1 • Hyatt Regency Reston • Reston, Virginia

CALL FOR ABSTRACTS ABSTRACTS DUE OCTOBER 10, 2017

INTERNATIONAL TECHNICAL MEETING (ITM) SESSION TOPICSAdvanced Integrity for Autonomous SystemsNewconcepts inmulti-constellationGNSS integrityandcontinuitymonitoringat theuser receiverand at the ground segment. Development of fault detection and exclusion algorithms, protection levelderivation,andnavigationrequirementdefinitionforRAIMandARAIM.Integrity,continuity,andavailability analysis considering satellite and constellation faults, interference and spoofing. Potential implicationsoffutureGNSSperformanceforautomatednavigationapplicationsinaviation(mannedorunmanned),automotive,rail,maritimeandspacetransportation.RequirementdefinitionfornewSafety-of-Lifeapplications.Integrityofmulti-sensorsystemsandsensorfusionalgorithms.Co-chairs: Dr. Okuary Osechas, German Aerospace Center (DLR), Germany and Dr. Mathieu Joerger, The University of Arizona

Algorithms for GNSS Processing and Sensor IntegrationNew signal processing techniques for GNSS receivers and other navigation devices to provideimproved acquisition, robustness, accuracy, sensitivity, timeliness, or other benefits. Processingtechniques that take advantage ofmultipleGNSS signals and new signal designs.Direct positionestimation,vectortracking,batchprocessingorBayesiantechniques(particlefilter)andprocessingtechniquesthattakeadvantageofGNSSintegrationwithothersensorsatthesignalprocessinglevel.Utilization of navigation data from out-of-band sources and use of high-rate, near-real-time data from scientificGNSSarrays,includingtheimpactofnewarrays.Compressing,prioritizingandschedulingnetwork reference data through limited communication channels. Co-chairs:Dr.AndreySoloviev,QuNavAtmospheric Science and Space Applications EffectsofthetroposphereandionosphereonGNSSsignals.Impactsoftheatmosphereandofspaceweatheron theoperationofGNSS.New techniquesanduseofGNSS foratmosphere, ionosphereor space weather monitoring for operational systems. New ground-based GNSS experimentsand networks. Monitoring of space and local weather for GNSS. Data assimilation methods andmodelingofpropagationandeffects.OccultationofGNSSsignals.3-Dtomographicreconstruction,Storm-EnhancedDensities (SEDs),Traveling IonosphericDisturbances (TIDs), plasma bubbles, andscintillation. High, mid, and low-latitude phenomena. Events from and studies of the solar minimum. Case studies and multiyear statistical overviews, now-casting and forecasting space weather for aviation, marine, geodetic, and timing applications. Novel technologies to model and mitigate atmospheric errors.Co-chairs:Dr.SusumuSaito,ENRI,JapanandDr.RezyPradipta,BostonCollege

Autonomous NavigationUseofGNSSandalternative/complementarynavigationtechnologies(sensors,signalsofopportunity,vision, etc.) for autonomous air, land, marine, or space vehicles or systems. Innovative applications for unmannedautonomoussystemsandresultingnavigationaccuracyrequirements.Algorithmsforpathplanning,guidance,andcontrolofautonomousvehicles.Techniquesbasedonsimultaneouslocationandmapping(SLAM)anditsvariants.Designofnavigationalgorithmsandfusionarchitectures.Safetyrelated aspects of autonomous vehicle operation.Co-chairs: Dr. Gert Trommer, Karlsruhe Institute of Technology, Germany

GNSS Augmentation Systems AugmentationofGNSSpositioningtosupportusersinaviation,maritime,rail,automotiveandotherapplications. Developments in both GBAS and SBAS. Governmental SBAS augmentation systemssuchasWAAS,EGNOS,GAGAN,QZSS,andMSAS. InteroperabilityofSBASsystemswithGBASand/or on-board RAIM. Private global and regional augmentation systems. Augmentation system design, referencestationequipment,userequipmentandperformance.DisseminationofintegritysupportinformationviahighandlowcapacitydatachannelsfromSBASandGBAS.Co-chairs:JolanaDvorska,HoneywellInternational,CzechRepublicandSantiagoPereaDiaz,GermanAerospace Center (DLR), Germany

GNSS in Challenging Environments Operation of GNSS receivers in challenging environments like urban canyons, indoor and high-dynamics applications, etc. Effect and mitigation of signal degradation due to scintillation or foliage. Weak signal processing techniques and algorithms. Indoor positioning applications.Mitigation ofmultipath in indoor and urban environments. First-responder personal navigation and urban ground-vehicle navigation. Algorithms for providing robustness, test methods for characterizing performance and results of receiver testing.Co-chairs:Dr.OlivierJulien,ENAC,FranceandDr.MohamedYoussef,SonyNorthAmerica

GNSS Remote SensingTechniquesforremotesensing.GNSSEarthobservationtechniques.Radiooccultationmeasurementsof the troposphere and ionosphere. Reflectometry for environmental remote sensing of land, ocean andice.Detectionofnaturalhazardssuchasearthquakes,tsunamis,andvolcanoeruptions.Co-chairs:Dr.SeebanyDatta-Barua,IllinoisInstituteofTechnologyandDr.AttilaKomjathy,NASAJPL

GNSS Resilience TechnologiesSystems for providing navigation and/or timing capabilitywhenGNSS is not available. RedundantsystemstoGNSSwherebackupsmayberequired,suchassafetyoflifeapplications.Alternativeandhybrid location methods suitable for consumer products. Positioning using Wi-Fi, cellular tower ranging, RFID, Bluetooth, Near Field Communication (NFC), HD Radio/Digital Audio Broadcasting (DAB), Digital TV and other signal of opportunity. Orientation and motion estimation from image/LiDAR/LaDAR sequences.Map/terrain/landmarkmatchingtechniques.Combinationsofalltheabovemethodswithinertialsensormeasurements.OthertopicsmayincludeDME,LORAN,LDACSandotherformsofAPNT.Co-chairs:Dr.ChunYang,SigtemTechnology,Inc.andMitchNarins,StrategicSynergies

High Precision GNSS – PPPNew algorithms and methods for improving Precise Point Positioning (PPP) techniques.PPP with integer ambiguity resolution. Ambiguity resolution for GLONASS, Galileo andBeiDou. Methods and algorithms for reliable cycle-slip detection. Estimation of signal biases relevant for PPP, such as fractional phase biases or differential code biases. Novel numerical approaches and algorithms for PPP with multiple constellations. Preserving precision accuracy in challenged urban environments. Improving re-convergence after signal outages. Interoperabilityof correction serviceswithdifferentuser equipment.Methods forpreciseprediction of satellite orbits and clocks.Co-Chairs:Dr.TerryMoore,UniversityofNottingham,UKandDr.ByungwoonPark,SejongUniversity,SouthKorea

High Precision GNSS – RTKNewalgorithmsandmethodsfor improvingRealTimeKinematic (RTK)techniques:multi-frequency,multi-constellationRTK; improvedalgorithms forambiguity resolution; reliableambiguity resolution over long baselines; network RTK; PPP-RTK in wide areas; heading and attitude determination using multiple antennas; low-cost single frequency RTKimplementation; and carrier phase multipath mitigation.Co-chairs: Dr. Sunil Bisnath, York University, Canada and Dr. Xiaohong Zhang, WuhanUniversity, China

Interference Mitigation and Spectrum ManagementTechniquesforimprovingtherobustnessofGNSSreceiversinthepresenceofjammingand/or spoofing. Techniques for geo-locating jammers and/or spoofers. Receiver-based anti-spoofing techniques and use of external infrastructure. Signal authentication techniquesand related challenges. Effects of interference on GNSS RF bands. Theoretical and testresults describing effects ofGNSS interference on receiver performance. Compatibility ofGNSSwithterrestrialandsatellitebasedservices.InteroperabilityinterferenceassessmentsamongvariousGNSSsystemsandwithnon-GNSSsystems.Receiverdesigntrade-offsandapproaches for interferenceenvironments. Spectrummanagement, policy and frequencyprotection issues and approaches.Co-chairs: Dr. Alex Stratton, Rockwell Collins andDr. Jiwon Seo,Yonsei University, SouthKorea

Modernized and Emerging GNSSNew civil, military and governmental user capabilities and performance, including availability andaccuracy improvement conceptsofGPS,GLONASS,Galileo,BeiDou,QZSSandIRNSS.OpenandauthorizedGNSSservices,searchandrescueservicesandcommercialservices. Optimization of GNSS signal structure, codes and data message. Conceptsfor interchangeability of GNSS constellations. Analysis of system performance, mutualinterference,impactonnoisefloor.ToolsforassessmentofRFcompatibilityandGNSSsignalsimulators. Modernized constellations characteristics and programmatic aspects, ground controlandmonitoringsegments.Performanceanalysisofnewsatellites.Userequipmentarchitecture and design. Integration with regional augmentation systems and use of those new systems to support future applications.Co-chairs:Dr.JoséÁngelÁvila-Rodríguez,ESA,TheNetherlandsandKenAlexander,FederalAviation Administration

Multi-Sensor NavigationFusion of data from multiple sensors. Algorithms, test methods, and results of implementations integrating diverse sensors. Coupling of GNSS with inertial sensors,odometers, radar, LiDAR, optical cameras, barometers, infrared or ultrasound sensors. Use of networkconnecteddevicesfornavigation;includingsmartphones,navigationapps,GNSS-based personal navigation systems with online maps, etc.Co-chairs: Dr. Allison Kealy, RMIT University, Australia and Dr. Juan Ignacio Giribet, University of Buenos Aires, Argentina

Next Generation Receiver and Antenna TechnologyAdvancementsinGNSSreceiversprovidingadvantagesintermsofperformance,cost,andpower consumption. Implementation and demonstration of advanced receiver hardware and flexiblearchitecturesaswellasadvancesinsoftware-definedGNSSreceiversandprocessingmethods. Multi-mode, multi-frequency receivers tracking new and/or modernized GNSSbroadcasts.AdvancesinRFfront-endelectronicsincludingmulti-GNSSfront-ends.ImproveddesignsforGNSSantennas,arraysandantennaelectronicswithemphasisonsizereductions,multi-frequencycoverage,precision,multipathmitigationandinterferencesuppression.Co-chairs:Dr.Jean-MarieSleewaegen,SeptentrioSatelliteNavigation,BelgiumandDr.PauClosas, Northeastern University

UAV Operation and Navigation Technology UAS integration intonon-segregatedairspace.Detect andavoid systems.Algorithmsandtools for path planning. Ground vehicle GN&C systems. New navigation and positioning techniquesforUAVapplications.Requirementsforposition,velocityandattitudeinformation;map building for UAV operations. Co-chairs: Dr. Demoz Gebre-Egziabher, University of Minnesota and Dr. Robert Leishman, Air Force Institute of Technology

PRECISE TIME AND TIME INTERVAL (PTTI) SESSION TOPICS PTTI PRE-CONFERENCE TUTORIALS • GNSSClocks:History,PresentandFuture• ClockMeasurementsandStatistics• TimescaleandGNSSReferenceTime• GNSSTimeTransfer/CodeandCarrierPhase• ClocksinGeodesy/NavigationSolutionsandApplications• Time Dissemination and Applications with NTP/PTP

Advances in Computer Time Transfer: NTP, PTP, and Related SystemsThe two primary protocols used to deliver accurate time stamps to computer systems, the Network Time Protocol (NTP) and the Precision Time Protocol (PTP), also known as IEEE-1588. Topics include NTP and PTP time transfer over both wide and local area networks, and the measurement and evaluation of servers, clients, and networks. Other computer time transfer systems including Synchronous Ethernet (SyncE), White Rabbit, andproprietary and proposed systems will also be explored. Co-chairs:JeffPrillaman,U.S.NavalObservatoryandJianYao,NIST

Advances in Geostationary Satellite Time and Frequency TransferTime transfer via geostationary satellites, including the Two-Way Satellite Time andFrequency Transfer (TWSTFT) method utilized for contributions to TAI and UTC. Alsoincluded are one-way transmissions and time code services from communications satellites used for television, radio, and meteorological applications. Co-chairs:Dr.StefaniaRomisch,NISTandRussellBumgarner,U.S.NavalObservatory

Advances in GNSS Time TransferAdvancesinGNSStimetransfer,inparticulartimetransferwithGPS,Galileo,GLONASS,andBeiDou,aswellasthevariousaugmentationsystems.Measurementstechniques(P3,PPP,IPPP, etc.), advances in receivers andantennas, system interoperability andmulti-GNSStime transfer, and the results of time transfer campaigns and intercomparisons. Co-chairs:EdPowers,U.S.NavalObservatoryandLisaPerdue,Spectracom

Advances in Optical Time Transfer (free-space and fiber based)Time transfer over dedicated optical fibers typically produces lower uncertainties than time transfer via satellites, and as such has become a preferred method for comparing optical clocks and the best microwave clocks. This session is devoted to optical time transfer techniques, and results obtained over short, medium, and long distances.Additional topics include free space optical links for time transfer.Co-chairs:Dr.Sven-ChristianEbenhagSP,SwedenandDr.MichaelDennis,JHU/APL

Advances in PTTI Measurement TechniquesAdvancesinmeasurementtechniquesandmetricsusedinPTTIapplications.Methodsforcalibrating cables, fibers, receivers, antennas, and other hardware utilized in time transfer systems;systemsandtechniquesforthemeasurementofPM/AMnoise;andmeasurementmethods for clock characterization (including statistics for stability analysis and forecasting clock drift/aging), and new advances in measurement instrumentation.Co-chairs:CraigNelson,NISTandNathanMartina,U.S.NavalObservatory

Advances in Time Transfer via Radio SignalsTime transfer methods based on signals that originate from ground based radio transmitters. Time transfer via LF radio signals including eLORAN, MF/HF comm channels, existing system-radio signals, and line of sight signals (FM radio, VHF, UHF, microwave). Co-chairs:LinHaas,BAESystemsandDr.EricAdles,JHU/APL

Advances in Ultrastable Microwave and Optical ClocksNew advances in clocks for PTTI applications. The primary focus is on atomic clock design and current and expected future performance for high-end laboratory based clocks. High-end microwave clocks as well as optical clocks. Co-chairs:Dr.JeffSherman,NISTandDr.JamesCamparo,TheAerospaceCorporation

Environmental Effects on Portable ClocksEnvironmental effects in small, portable clocks. Emphasis will be on environmental characterization of clocks as well as techniques to mitigate degradation of clockperformance due to the environment. Additionally, there is interest in advances on portable clocks designed for extreme environments.Co-chairs: Dr. Daphna Enzer, Jet Propulsion Laboratory and Bryan Owings, Microsemi

Next Generation PTTI ApplicationsNew and developing PTTI applications. New applications that rely on precise time as well asnewtechniquesforprecisetimegenerationordissemination.Co-chairs: Greg Weaver, JHU/APL and Edoardo Detoma, (Retired), Italy

The Role of PTTI in Electric Power DistributionThe implementation of the “smart grid,” or an electric power distribution system that can automatically detect and react to local changes in electricity usage, is one of the largest critical infrastructure PTTI applications. This session focuses on the role of PTTI in the smart-grid, including the design, use, and calibration of phasor measurement units (PMUs).Co-chairs:BlairFonville,U.S.NavalObservatoryandPeterCash,Microsemi

The Role of PTTI in the Financial SectorBanks and financial markets rely on accurate time information to guard against fraud and protect consumers. This has become more important in recent years due to the increased use of electronic trading platformsandhigh frequencytrading (HFT). Thissession isdevotedtotheroleofPTTI in thefinancialsector, including methods for insuring that high accuracy, traceable, and verifiable time stamps are available at wide spread locations.Co-chairs:Dr.MarinaGertsvolf,NRC,CanadaandMichaelLombardi,NIST

The Role of PTTI in Improving GNSS Invulnerability, Reliability, and PerformanceTechniquesandmethodologiesfor improvingGNSSinvulnerability,reliability,andperformanceforPTTIapplications, inparticularways to“protect, toughen,andaugment”GNSStime. Methods topreventormitigate intentionalandunintentionalRF interference (jamming), the transmissionof false information(spoofing),multipathsignalreflections,andGNSSbroadcasterrors,suchasthosethatoccurredwithGPSinJanuary2016.Alsoincluded,methodsforsatelliteclockstoautonomouslyassessthequalityoftheirtimekeeping.Co-chairs: Dr. Christine Hackman, U.S. Naval Observatory and Dr. Erin Griggs, Space Sciences andEngineering

The Role of PTTI in TelecommunicationsThe role of PTTI in the design and implementation of mobile telephone networks (CDMA, GSM,etc.), messaging systems,Wi-Fi andWiMAX, and other types of wired and wireless networks used forcommunications.Co-chairs:LeeCosart,MicrosemiandJayHanssen,U.S.NavalObservatory

Time Scales and AlgorithmsThe description and implementation of current and new time scales, including: time scales that include continuouslyrunningprimaryfrequencystandards,algorithmsandmethodsthatadvancethestateoftheartinclockdataanalysisandtheirapplications;thegenerationofUTC(k)andreferenceGNSStimescaleswithincreasingperformance;andtheuseofKalmanfiltersandotherrobuststatisticaltechniques.Co-chairs:Dr. Elizabeth Laier English,National Physical Laboratory,UKandKenSenior,Naval ResearchLaboratory

Timing Laboratory Activities and UpdatesThe opportunity for timing laboratories (including those operated by national metrology institutes, military, and academic organizations) to provide updates describing their current and future PTTI activities; including UTC(k) generation and performance, time dissemination, time services, calibrations, and related research activities.Co-chairs: Ronald Beard, Naval Research Laboratory and Dr. John Burke, Air Force Research Laboratory

Co-located ITM and PTTI 2018: ONE Registration Fee, TWO Technical Events and a Commercial Exhibit

www.ion.org www.ion.org

ITM/PTTI PLENARY PRESENTATIONUnmanned Aircraft System (UAS)

Traffic Management (UTM)

Plenary Speaker: Akbar SultanDeputyDirector,AirspaceOperationsandSafetyProgram,NASA

Photo Credit: https://utm.arc.nasa.gov