jgg     2014 34 (5):  82-86    ISSN: 0412-1961  CN: 21-1139/TG

AN IMPROVED METHOD FOR GNSS OCCULTATION IONOSPHERE 
VERTICAL DENSITY PROFILING WITH BENDING ANGLE
1)College of Surveying and Geoinformatics,Tongji University,Shanghai 200092
2)Key Laboratory of Modern Engineering Surveying,NASMG,Shanghai 200092
3)Gansu Industry Polytechnic College,Tianshui 741025
4)Sichuan College of Architectural Technology,Deyang 618000
Received: 2013-10-24  Revised: null  Online: 2014-09-26
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