RINEX V4

R2026b

RINEX (Receiver Independent Exchange Format) is an international standard for GNSS data exchange. The format defines standard structures for observation, navigation, and related GNSS data, ensuring interoperability across different receivers and processing software.

RINEX files consist of a header section with metadata, and a data section containing epoch-by-epoch or record-by-record data. You can use the rinexread function to extract satellite information from the RINEX files for precise receiver and satellite positioning. You can use the rinexinfo function to get file information, including the file header contents.

RINEX version 4 supports GPS, GLONASS, Galileo, BeiDou, QZSS, SBAS, and NavIC/IRNSS satellite systems, with navigation data organized by message type within each system.

Navigation and Observation Data Formats

When using the rinexread function to read the navigation or observation data from the RINEX 4 files, the organization of the output data structure depends on the satellite system and the navigation message type described in the file. For navigation data, messages are grouped by navigation message type under the corresponding satellite system. For detailed descriptions of the data structures, see the navigation and observation reference pages. For example, if a RINEX v4 navigation file provides GPS LNAV Ephemeris data, the information is stored in data.GPS.LNAV.EPH.

RINEX File Types

The RINEX version 4 standard supports these file types:

  • Observation files

  • Navigation files

  • Meteorological files

Note

The rinexread function currently supports only observation and navigation files.

References

[1] Romero, Ignacio, ed. RINEX The Receiver Independent Exchange Format Version 4.00. Darmstadt, Germany: IGS/RTCM RINEX WG & RTCM SC104. November, 2021. Accessed on: Dec. 22, 2021. https://files.igs.org/pub/data/format/rinex_4.00.pdf.

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