Development of GNSS Availability in Urban Environments Using by Street View Images and Evaluation of QZSS in Urban

• Project/Area Number: 16K14316
• Research Category: Grant-in-Aid for Challenging Exploratory Research
• Allocation Type: Multi-year Fund
• Research Field: Civil engineering project/Traffic engineering
• Research Institution: Yamaguchi University
• Principal Investigator: Nagai Masahiko 山口大学, 大学院創成科学研究科, 准教授 (20401309)
• Project Period (FY): 2016-04-01 – 2018-03-31
• Project Status: Completed (Fiscal Year 2017)
• Budget Amount: ¥3,510,000 (Direct Cost: ¥2,700,000、Indirect Cost: ¥810,000); Fiscal Year 2017: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000); Fiscal Year 2016: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
• Keywords: 衛星測位 / GNSS / 準天頂衛星 / 画像処理 / 測位シミュレーション / Google Street View / 準天頂衛星衛星 / 地理情報システム（GIS / 地理情報システム（GIS） / 測量・リモートセンシング

Outline of Final Research Achievements

Performance of Global Navigation Satellite System (GNSS) positioning in urban environments is hindered by poor satellite availability because there are many man-made and natural objects in urban environments that obstruct satellite signals. To evaluate the availability of GNSS in cities, a software simulation of GNSS availability in urban areas using a panoramic image dataset from Google Street View. Photogrammetric image processing techniques are applied to reconstruct fisheye sky view images and detect signal obstacles. A software simulation of GNSS availability was demonstrated in Bangkok and Manila, and also evaluation of QZSS in Bangkok and Manila.

Research Products

• [Int'l Joint Research] アジア工科大学(タイ)
• [Int'l Joint Research] フィリピン大学(フィリピン)
• [Int'l Joint Research] Asian Institute of Technology(タイ)
• [Int'l Joint Research] University of the Philippines(フィリピン)
• [Journal Article] Simulation of GNSS Availability in Urban Environments Using a Panoramic Image Dataset (2017)
  • Author(s): Tongleamnak Sakpod、Nagai Masahiko
  • Journal Title: International Journal of Navigation and Observation Volume: 2017 Pages: 1-12
  • DOI: 10.1155/2017/8047158
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Presentation] A Simulation for GNSS Utilization and DEM Construction in Urban (2017)
  • Author(s): Masahiko NAGAI, Sakpod TONGLEAMNAK, Zahid WANI
  • Organizer: 宇宙技術および科学の国際シンポジウム(ISTS)
  • Int'l Joint Research
• [Presentation] Simulation for GNSS Utilization and Application in Urban Environment (2016)
  • Author(s): Masahiko Nagai
  • Organizer: Multi-GNSS Asia (MGA) Conference
  • Place of Presentation: Manila, Philippines
  • Int'l Joint Research