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BDSet: A First-ever BDS Satellite-based PPP Augmentation Dataset Since 2023.

Chenhao Ouyang^1,2, Junbo Shi³, Cheng Hou¹

¹School of Geodesy and Geomatics, Wuhan University, Wuhan, 430079, China.

Scientific Data

|March 11, 2026

Summary

This study introduces BDSet, the first dataset of BeiDou Navigation Satellite System (BDS) precise point positioning (PPP) corrections via PPP-B2b signals. This comprehensive dataset supports advancements in global navigation satellite system (GNSS) applications.

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Area of Science:

Geodesy and Geomatics
Satellite Navigation Systems
Data Science

Background:

BeiDou Navigation Satellite System (BDS) provides precise point positioning (PPP) services using state space representation (SSR) corrections via PPP-B2b augmentation signals.
Maximizing the research potential of BDS PPP-B2b services requires accessible and comprehensive datasets.

Purpose of the Study:

To develop and introduce the first-ever BeiDou Navigation Satellite System (BDS) PPP-B2b augmentation dataset, named BDSet.
To provide a foundational resource for research and development in satellite navigation and related fields.

Main Methods:

Collected raw data from BDS PPP-B2b augmentation signals in Wuhan, China.
Processed data through standardization, decoding of SSR corrections, and generation of precise PPP-B2b products.
Established a continuously updating dataset since January 1, 2023.

Main Results:

The BDSet dataset contains 255,405,156 PPP-B2b augmentation messages from 2023-2025, occupying 142.7 GB.
Detailed message counts for BDS satellites C59, C60, C61, and C62 are documented.
The dataset covers the complete processing flow from raw data to final usable products for positioning, navigation, and timing (PNT).

Conclusions:

The BDSet dataset offers a substantial database for diverse applications including GNSS PNT, geoscience, and meteorology.
This three-year dataset will facilitate future artificial intelligence (AI)-driven big data mining for BDS.
BDSet represents a significant contribution to the advancement of BDS-based PNT services and scientific research.