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| THE TECHNIQUE FOR ACQUISITION OF DTM DATA AND AN ANALYSIS OF ITS PRECISION |
| YU Chang-chun, XIONG Sheng-qing, DONG Ji-guo |
| China Aerogeophysical Survey and Remote Sensing Center for Land and Resources, Beijing 100083, China |
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Abstract This paper describes the technique of applying navigation aid for aerogeophysical survey to acquiring DTM data and, combined with practical field work, systematically analyses the sources for errors in DTM data and deals with the means for raising precision.
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Received: 07 June 2000
Published: 24 June 2001
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