Authors
Mou Chengjin
China International Strategic Research Center of Mobile Communications Joint Association, Beijing, China
BeiDou Zhejiang
Chief researcher of Zhejiang BeiDou Future Cyberspace Research Institute, Xi’an, China
© 2021 Mou Chengjin, BeiDou Zhejiang, published by Xi’an Technological University
This work is licensed under the Creative Commons Attribution 4.0 License.