supported by the National Key Research and Development Program of China(grant No.2021YFA0716500);the National Natural Science Foundation of China(NSFC,grant Nos.61973328 and 91938301)。
In today’s society,there is a wide demand for high-precision and high-stability time service in the fields of electric power,communication,transportation and finance.At present,the time standard in various countries ...
In spite of the rapid developments in communication technologies over the past few decades, which include attractive features offered by the presently used 3G/4G systems,让 continues to be a challenge to render adequa...