Chengfa Gao

Title: Chengfa Gao: Innovator in High-Precision Positioning Technologies

Introduction

Chengfa Gao is a prominent inventor based in Jiangsu, China. He has made significant contributions to the field of satellite positioning technology. With a total of 2 patents, his work focuses on enhancing the accuracy and efficiency of positioning methods using smartphones.

Latest Patents

Chengfa Gao's latest patents include a high-precision point positioning method and device based on smartphones. This invention improves the conventional precise point positioning (PPP) model by utilizing original GNSS observation values received by smartphones. The method allows for high-precision positioning without the need for GNSS reference stations. It involves acquiring original observation values, preprocessing the data to reduce errors, generating an uncombined model, determining satellite observation value weights, and applying an improved Kalman filtering method for accurate positioning results.

Another notable patent is the tightly combined GPS/BDS carrier differential positioning method. This method constructs a GPS intra-system double-difference ionosphere-free combination model and a GPS/BDS inter-system double-difference ionosphere-free combination model. It utilizes a GPS reference system and a BDS reference satellite to enhance the accuracy of positioning by estimating ionosphere-free carrier differential inter-system bias in real time.

Career Highlights

Chengfa Gao is affiliated with Southeast University, where he continues to advance research in satellite positioning technologies. His innovative approaches have garnered attention in the academic and technological communities.

Collaborations

Chengfa Gao collaborates with esteemed colleagues such as Guoliang Liu and Bo Chen. Their combined expertise contributes to the development of cutting-edge positioning technologies.

Conclusion

Chengfa Gao's work in high-precision positioning methods showcases his dedication to innovation in satellite technology. His contributions are paving the way for advancements in smartphone-based positioning systems.