Title :
Progress on passive H-maser for Compass system
Author :
Ren-fu Yang ; Jing Li ; Hai-bo Chen ; Ji-hong Zhang ; Lian-shan Gao
Author_Institution :
Beijing Inst. of Radio Metrol. & Meas., Beijing, China
Abstract :
The Rubidium atomic frequency standard is at present the basic clock technology for the Chinese Compass Navigation payload. What´s more, hydrogen atomic clock will become another critical satellite equipment for the navigation system. In this work, the authors report the latest progress in a space borne passive hydrogen maser for Chinese Compass satellites. The preliminary measurement result of long-term frequency stability in our passive H-maser on ground is 2E-14 over averaging time of ten thousand seconds.
Keywords :
atomic clocks; compasses; frequency measurement; hydrogen; rubidium; satellite navigation; 2E-14; Chinese compass navigation payload; Chinese compass satellites; clock technology; compass system; hydrogen atomic clock; long-term frequency stability; navigation system; passive H-maser; rubidium atomic frequency standard; satellite equipment; space borne passive hydrogen maser; COMPASS system; GNSS; Hydrogen atomic clocks; Time and Frequency;
Conference_Titel :
EFTF-2010 24th European Frequency and Time Forum
Conference_Location :
Noordwijk
Print_ISBN :
978-1-4673-5970-2
DOI :
10.1109/EFTF.2010.6533685
