jgg     2011 31 (6):  79-83    ISSN: 0412-1961  CN: 21-1139/TG SELECTION OF GEOMAGNETIC ADAPTABLE MATCHING AREAIN GEOMAGNETIC MATCHING NAVIGATION Wang Xianglei 1) ; Su Mudan 2) ; Ding Shuo 3) ; and Shen Jiemin 3) 1)Institute of Surveying and Mapping, Information Engineering University, Zhengzhou 450052; 2)63999 Troops, Beijing 100094;3)61081Troops, Beijing 100094 Received: 1900-01-01  Revised: 1900-01-01  Online: null Supporting info null