Drafting Navigation Safety

Is your position correct?

Is GPS not tricked? No errors exist?

Yellowtail Navigation is developing technologies to use GPS safely.

GNSS Testing Service

GNSS signal data for testing

  • SBAS L1/L5
  • GPS/Galileo/QZSS
  • Single Station/Multiple Stations
  • Nominal/Off-nominal conditions
  • RINEX/EMS format

GNSS Signal Analisys Service

Analizing GNSS signal data and evaluation

  • Position accuracy
  • Differential correction evaluation
  • Protection levels
  • Editing observation data
  • RINEX/EMS format

Other Services

Special GNSS receiver, software tools, etc.

  • Developing special GNSS receivers
  • Converting file format/Decoding SBAS message stream
  • Software tools (GPS/GNSS, RAIM, DGPS, etc.)
  • Documentation and translation
Company NameYellowtail Navigation Ltd.
Head OfficeTokyo, Japan
PresidentProf. Takeyasu SAKAI
BusinessesGNSS Testing Service: GNSS signal data for testing in various environment.
GNSS Signal Analysis Service: Analizing GNSS signal data and edition.
Other Services: Developing special GNSS receiver, software tools, documentation, translation, etc.
Products- L5 SBAS Trial Message: The L5 (DFMC) SBAS message stream compliant with the latest international standards, generated for WAAS, MSAS, EGNOS, GAGAN, KASS, and any other SBAS systems. Provided as daily file in EMS 2.0 format with some processing results (corrections and sigmas for each augmented satellite, position results, and protection levels). Customization available.
- GNSS Receivers: L1 SBAS-capable receiver with various settings.
Patents7471618 (JP) 2024-04-12, 7496587 (JP) 2024-05-30, 7519658 (JP) 2024-07-11, 7539123 (JP) 2024-08-15, 7550426 (JP) 2024-09-05
Contact E-mailsakai@yellowtail.jp