1. Kuutti, S., Fallah, S., Katsaros, K., et al.: A survey of the state-of-the-art localization techniques and their potentials for autonomous vehicle applications. IEEE Internet Things J. 5(2), 829–846 (2018)
2. An, J.: Development of high-precision positioning and environment construction algorithm for autonomous driving in park. Jilin University (2020)
3. Skog, I., Handel, P.: In-car positioning and navigation technologies-a survey. IEEE Trans. Intell. Transp. Syst. 10(1), 4–21 (2009)
4. Kang, J.: Research on key technologies of autonomous positioning of unmanned vehicles in urban environment. Chang’an University (2016)
5. Xiang, G., Tao, Z., Yi, L.: Lecture 14 of Visual SLAM: From Theory to Practice. Electronic Industry Press, Beijing (2017)