Exploiting Aircraft Surveillance Information Broadcast as a New Means of Air-Ground Propagation Measurement

2019 Fiscal Year Final Research Report

• Project/Area Number: 17K14688
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Multi-year Fund
• Research Field: Communication/Network engineering
• Research Institution: National Institute of Maritime, Port and Aviation Technology
• Principal Investigator: Naganawa Junichi 国立研究開発法人海上・港湾・航空技術研究所, 電子航法研究所, 主任研究員 (40760400)
• Project Period (FY): 2017-04-01 – 2020-03-31
• Keywords: 航空監視 / 電波伝搬

Outline of Final Research Achievements

ADS-B is a system for aircraft to report its own position and other information via wireless signals. This research attempts to measure ADS-B signals and analyze them from a viewpoint of air-ground radio-signal propagation. Result of the analysis is useful for designing ground receiver locations. In this research, the effectiveness of the proposed approach was firstly evaluated and a technique for mitigating the measurement error was developed because the ADS-B approach is novel. Then, a measurement and analysis of target-of-opportunity were conducted. As a result, a statistical model of received power distribution was obtained. Also, a comparison between an electromagnetic simulation and measurement was made in a mountainous region. As a result, an evaluation result of the simulation method and insights on the effect of the mountainous terrain were obtained.

Free Research Field

電波伝搬

Academic Significance and Societal Importance of the Research Achievements

近年，航空交通需要が増加しており，それを支えるインフラとして空と地上を結ぶ無線システム（例えば航空管制用の監視システム）の役割が高まっている．そのような無線システムを効果的に整備するには，空地を結ぶ無線信号の性質（電波伝搬）を理解することが必須である．これに向け，本研究では，ADS-B信号を電波伝搬の分析に応用した．その成果の一例は，地上受信局の位置決定に役立つ実用的な知見であり，社会インフラ整備に貢献する点で，社会的意義を持っている．また，新しい低コストな測定手法を提案したという成果は，研究開発のすそ野の拡大に寄与するという点で，学術的に意義がある．