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The 2022 International Workshop on ATM/CNS (IWAC2022) was successfully held on October 25 to 27, 2022 with the collaboration of the Japan Society for Aeronautical and Space Sciences (JSASS). The event was held in hybrid format due to the COVID-19 pandemic and attracted about 200 participants from 13 countries around the world. There were 56 presentations in the forms of plenary, invited, and technical sessions. An exhibition was also held in parallel to the workshop.

ENRI has changed the workshop name from EIWAC to IWAC to strengthen the cooperation with the academic community through joining hands with JSASS. Nine papers recognized for outstanding quality were nominated to the Transactions of the Japan Society for Aeronautical and Space Sciences, a journal published by JSASS.

We sincerely appreciate your valuable contribution with high-quality presentations, papers, and fruitful discussions during the IWAC. We look forward to seeing you again at our next workshop.

Date	Oct. 25～27, 2022
Venue	Nakano Central Park Conference (Tokyo)

Selected Papers of IWAC2022

Nine high-quality papers were selected and nominated for the Transactions of the Japan Society for Aeronautical and Space Sciences published by JSASS.

～ Best Paper Award ～

Name

Affiliation

Paper title

Christian Aveneau

Direction de la Technique et de l’Innovation

Potential operational consequences of the use of ACAS Xu in controlled airspace

～ Best Student Paper Award ～

Name

Affiliation

Paper title

Patric Fol

Zurich University of Applied Sciences

Identification and Operational Impact Analysis of GNSS RFI Based on Flight Crew Reports and ADS-B Data

- Program and Papers -
＊Conference program (final)

Day1 October 25th Tuesday [ Hall A+B+C ]
Keynote Speeches Chair: Sonosuke Fukushima (Electronic Navigation Research Institute, MPAT)
K-1	R&D Activities through Global Collaboration Tatsuyuki Shimazu Director General, ENRI
K-2	Global Positioning and Communication Network Accelerate Innovation in Aerospace Technology Kojiro Suzuki President, JSASS
Keynote Speeches Chair: Mark Brown (Electronic Navigation Research Institute, MPAT)
K-3	Decarbonization and the Contribution of CARATS Koji Takahashi Director-General, Air Navigation Services Department, JCAB
K-4	Information-Centric Aviation: Global Opportunities for 2035. Steve Bradford Chief Scientist, Office of NextGen, FAA
K-5	CNS/ATM Resilience and Environmental Challenges Stephen Creamer Director, Air Navigation Bureau, ICAO
K-6	Delivering the Digital European Sky Andreas Boschen Executive Director, SESAR 3 JU
K-7	Recent developments in European and International Aviation Standardisation Anna von Groote Director General, EUROCAE
K-8	Research Projects for Achieving Carbon Neutrality at National Institute of Maritime, Port and Aviation Technology (MPAT) Yoshiaki Kuriyama President, MPAT

Day2 October 26th Wednesday [ Hall A ]
Technical Session 1　Communication and Navigation Systems Chair: Akiko Kohmura(Electronic Navigation Research Institute, MPAT)
T1-1-A	A Secure Ground Handover Protocol for LDACS Nils Mäurer German Aerospace Center (DLR)
T1-2-I	LDACS Validation Activity in ENRI and Cooperation with DLR Kazuyuki Morioka Electronic Navigation Research Institute, MPAT (ENRI)
T1-3-I	Observation of sporadic E using aeronautical navigation radio for instrument landing system Shumpei Tabuchi University of Electro-Communications
Technical Session 4　Radio Propagation Analysis Chair: Junichi Honda (Electronic Navigation Research Institute, MPAT)
T4-1-A	Air-Ground SWIM Demonstration over Extended AeroMACS - Tracking, antenna placement and handover evaluations - Kazuyuki Morioka Electronic Navigation Research Institute, MPAT (ENRI)
T4-2-A	On the Imaging of Large Antenna Array Navigation Systems Robert Geise Technische Universität Braunschweig
T4-3-A	Investigating the Impact of Dynamic Scatterers on Transmission Channels - A Case Study of the Propeller Aircraft Airbus A400M in the context of the Instrument Landing System Altan Akar Technische Universität Braunschweig
Technical Session 7 Surveillance Systems Chair: Junichi Naganawa (Electronic Navigation Research Institute, MPAT)
T7-1-A	Airport Runway Area Segmentation in PolSAR Image Based D-Unet Network Yufan Liang Civil Aviation University of China
T7-2-A	Preliminary study on multilateration Performance for El Salvador’s international Airport Lizardo Arias University of El Salvador

Day2 October 26th Wednesday [ Hall B ]
Technical Session 2　Airport 1 Chair: Yoichi Nakamura (Electronic Navigation Research Institute, MPAT)
T2-1-A	Variable Taxi-Out Time Prediction Based on Machine Learning with Interpretable Attributes Yixiang Lim Nanyang Technological University
T2-2-A	Synthetic Training of Neural Networks for Semantic Segmentation of LiDAR Point Clouds Michael Schultz Universität der Bundeswehr München
T2-3-A	Predicting Passenger Flow at Charles De Gaulle Airport using Dense Neural Networks Alexis Brun Ecole Nationale de l’Aviation Civile
Technical Session 5　Airport 2 Chair: Midori Tanino (Federal Aviation Administration)
T5-1-A	Air-rail timetable synchronization for a seamless passenger journey Clara Buire Ecole Nationale de l'Aviation Civile
T5-2-A	Machine Learned Prediction of Runway Configuration Transition Times for Capacity Analysis Lam Jun Guang Andy Saab-NTU Joint Research Lab
T5-3-A	Towards Greener Airport Surface Operations: A Reinforcement Learning Approach for Autonomous Taxiing Sameer Alam Nanyang Technological University
Invited Speeches Chair: Mark Brown (Electronic Navigation Research Institute, MPAT)
I-1	JAL's DX initiatives at the Innovation Lab Sachiko Hiramatsu Japan Airlines Co.,Ltd
I-2	4D Trajectory Based Operations Thierry Harquin AIRBUS
I-3	Wake Energy Retrieval: an environmental opportunity for aviation Philippe Masson AIRBUS
Technical Session 8　Remotely Piloted Aircraft Systems Chair: Hamsa Balakrishnan (Massachusetts Institute of Technology)
T8-1-A	Potential operational consequences of the use of ACAS Xu in controlled airspace Christian Aveneau Direction des Services de la Navigation Aérienne
T8-2-I	Risk-based Approach to UAS Traffic Management System Development in South Korea Younsil Kim Korea Aerospace Research Institute

Day2 October 26th Wednesday [ Hall C ]
Technical Session 3　Global Navigation Satellite Systems Chair: Keisuke Hosokawa (University of Electro-Communications)
T3-1-A	Identification and Operational Impact Analysis of GNSS RFI Based on Flight Crew Reports and ADS-B Data Patric Fol Zurich University of Applied Sciences
T3-2-A	Impact of GNSS Outage on Mid-Air Collision Risk Benoit Figuet Zurich University of Applied Sciences
T3-3-A	Preliminary Evaluations of User Positioning Errors in DFMC SBAS Demo at Thailand Location Somkit Sophan King Mongkut’s Institute of Technology Ladkrabang
Technical Session 6　Air Traffic Management 1 Chair: Akinori Murata (Electronic Navigation Research Institute, MPAT)
T6-1-A	Considering TMA holding uncertainty into in-flight trajectory optimisation David de la Torre Sangrà Universitat Politècnica de Catalunya
T6-2-A	A Study of Robustness Between Two Strategic 4D Trajectory Plannings Paveen Juntama Ecole Nationale d'Aviation Civile
T6-3-A	Slot allocation in a multi-airport system under flying time uncertainty Chang Liu Nanjing University of Aeronautics and Astronautics
Technical Session 9　Air Traffic Management 2 Chair: Daniel Delahaye (Ecole Nationale de l'Aviation Civile)
T9-1-A	Dynamic Airborne Delay Buffer Selection for Efficient Air Traffic Flow Management Adriana Andreeva-Mori Japan Aerospace Exploration Agency
T9-2-A	Non-CO2 Market-Based Incentives Towards Robust Climate Optimal Aircraft Trajectories Abolfazl Simorgh Universidad Carlos III de Madrid
T9-3-A	Research on CDO Trajectory Optimization Based on Cost Index using Gaussian Pseudospectral Method Gong Fengxun Civil Aviation University of China

Day3 October 27th Thursday [ Hall A ]
Technical Session 10　Urban Air Mobility / Human Factor Chair: Naoki Matayoshi (Japan Aerospace Exploration Agency)
T10-1-A	Automatic speech recognition in noise polluted cockpit environments for monitoring the approach briefing in commercial aviation Jonas Füllgraf Technische Universität Braunschweig
T10-2-I	Withdrawn
T10-3-I	Withdrawn

Day3 October 27th Thursday [ Hall B ]
Special Session SWIM Introductory Talk and Panel Discussion Chair: Lu Xiaodong, Navinda Kithmal Wickramasinghe (Electronic Navigation Research Institute, MPAT)
T14-1-A	SWIM Based Trajectory Coordination to Achieve Strategic Planning and Collaborative Decision Making Xiaodong Lu Electronic Navigation Research Institute, MPAT
T14-2-I	Multi-Regional Trajectory Based Operations (MR TBO) Demonstrations – Selected Lessons Learned Nabil Sandhu Federal Aviation Administration
T14-3-I	Validating Trajectory-Based Operations (TBO) Operational Values and Capabilities Daphne Cheong Civil Aviation Authority of Singapore
Organized Session 1　Electromagnetic Analysis on Aeronautics Chair: Naruto Yonemoto (Electronic Navigation Research Institute, MPAT)
O1-1	[Invited] The Difference between Conventional and Doppler VOR – Some Missing Issues Robert Geise Leipzig University of Applied Science
O1-2	[Invited] Large-scale Numerical Evaluation of Cabin-to-Exterior Propagation Characteristics for Sub-6GHz/5G Using Small Aircraft Model Takashi Hikage Hokkaido University
O1-3	Hybrid Electromagnetic Analysis Methods Suitable for Airport Surfaces in the VHF Band Atsushi Kezuka Electronic Navigation Research Institute, MPAT
Organized Session 2　Urban Air Mobility Chair: Ryota Mori (Electronic Navigation Research Institute,MPAT)
O2-1	[Invited] Cross fertilization between ATM and UTM Daniel Delahaye Ecole Nationale de l’Aviation Civile
O2-2	[Invited] Traffic Management Challenges in Advanced Air Mobility Hamsa Balakrishnan Massachusetts Institute of Technology
O2-3	Estimation Methods of the Visual Flight Rules Planned Route for Sharing Preflight Information with Urban Air Mobility Daichi Toratani Electronic Navigation Research Institute, MPAT
O2-4	[Invited] An Overview of Advanced Air Mobility Research at NASA Marcus Johnson, Jeffrey Homla NASA Ames Research Center

Day3 October 27th Thursday [ Hall C ]
Technical Session 11　Air Traffic Management 3 Chair: Akinori Harada (Kochi University of Technology)
T11-1-A	Exploiting spatio-temporal partial separability of large-scale airspaces Julien Lavandier Ecole Nationale de l’Aviation Civile
T11-2-A	Multi-Aircraft Trajectory Deformation for Uncertain Thunderstorm Avoidance and Conflict Resolution Eduardo Andrés Universidad Carlos III de Madrid
T11-3-A	A Multi-task Learning Approach for Facilitating Dynamic Airspace Sectorization Wei Zhou Nanyang Technological University
Technical Session 12　Air Traffic Management 4 Chair: Hiroko Hirabayashi (Electronic Navigation Research Institute, MPAT)
T12-1-I	Free Route Airspace Implementation Efforts in the Latin America and Caribbean Region through Collaboration Midori Tanino Federal Aviation Administration
T12-2-A	Demand Assessment for Climate Optimal Aircraft Trajectories at Network Scale Fateme Baneshi Universidad Carlos III de Madrid
T12-3-A	A Deep Neural Network Approach for Prediction of Aircraft Top of Descent Qing Cai Nanyang Technological University
Technical Session 13　Space Weather Chair: Shinji Saitoh (Electronic Navigation Research Institute, MPAT)
T13-1-A	Anomalous Long-range Propagation of VHF NAV signals by the sporadic E Keisuke Hosokawa University of Electro-Communications
T13-2-I	DFMC GBAS testbed at Ishigaki, Japan Susumu Saito Electronic Navigation Research Institute, MPAT
T13-3-I	Recent domestic activities and NICT’s efforts toward the advancement of space weather forecast Takuya Tsugawa National Institute of Information and Communications Technology

Exhibition

NEC Corporation
MSAS (Michibiki Satellite-based Augmentation System)GBAS (Ground Based Augmentation System)
Antenna Giken Co.,Ltd.
Array Antennas to Be Used In AOA Measurement System for Investigating Aircraft Position
Japan Radio Co.,Ltd.
Optically-connected Multilateration System (MLAT)
Hitachi Kokusai Electric Inc.
90GHz-band FOD Detection Radar System for Runway Surveillance
Electronic Navigation Research Institute, MPAT
CARATS Open Data for Research and Development