jgg     2013 33 (5):  79-82    ISSN: 0412-1961  CN: 21-1139/TG PARALLEL COMPUTING OF GNSS DATA BASED ON  BERNESE PROCESSING ENGINE Institute of Surveying and Mapping, Information Engineering University, Zhengzhou〓450052 Received: 2013-05-31  Revised: null  Online: 2013-10-13 Supporting info