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♣ About MALIB
(MADOCA-PPP Library)

MALIB is an GNSS (Global Navigation Satellite System) positioning tool based on RTKLIB(*) especially for PPP/PPP-AR.
MALIB supports not only MADOCA products but also MADOCA-PPP service (QZSS) [1] operated by CAO.

(*)RTKLIB is an open source program package for standard and precise positioning with GNSS developed by Mr. Takasu.[2]


♣ Key Features
(1) Multi-GNSS Support (GPS, GLONASS, Galileo, and QZSS)
(2) Both of Offline (rnx2rtkp) and Real-Time Estimator (rtkrcv)
(3) PPP and PPP-AR
(4) Apply various L6E data formats (e.g. ubx/sbf/msj)
(5) Select frequencies depending on the GNSS satellites

Satellite system Dual-frequency signals
GPSL1C/A-L2P, L1C/A-L2C, L1C/A-L2P, L1C/A-L5
QZSSL1C/A-L2C, L1C-L5
GalileoE1-E5a, E1-E5b
GLONASSG1-G2

♣ Download
The MALIB software package is distributed under the following BSD 2-clause license. Please visit the following GitHub link. MALIB manual and test data is available in the "/doc" and "/test" branch of the GitHub repository respectively.

  • GitHub : MALIB
  • System Requirement : The CUI APs were also built and tested on Ubuntu 20.04 Linux and x86 CPU.

    ♣ Related sites
    Related sites are as follows:

  • RTKLIB manual ( RTKLIB [External link])

  • MADOCA-PPP test libraly ( MADOCALIB [External link])
    MADOCA-PPP test library is a reference implementation for MADOCA-PPP service (QZSS) published by CAO. It contains a post-processing PPP utility.


    Reference:
    [1]MADOCA-PPP service : https://qzss.go.jp/en/overview/services/sv13_madoca.html
    [2]RTKLIB : https://github.com/tomojitakasu/RTKLIB/tree/rtklib_2.4.3

    Edit Date:Apr. 1st, 2026