21 March 2003 Developing of laser airborne depth mapping in China
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With the requirement of safe navigation in South China Sea, airborne laser bathymetry technique becomes attractive in China recently. A prototype of laser airborne depth mapping (LADM-I) system was developed. System included a diode laser pumped solid-state laser with a repetition rate of 200 Hz and the peak power of 2 Mw, a 15°nadir quasi-elliptical scanner, a combination unit of DGPS and an electronics compass, and a post-flight data processor. System has been demonstrated in South China Sea during last two years. In order to improve sounding density, survey productivity, maximum penetrable depth and accuracy of depth, a new generation of LADM-II is under developed. System will be constituted of a 1 kHz diode pumped laser, INS and KGPS. The performance will also upgrade to meet the higher requirement. In this paper, the detail parameters and specifications of LADM-I, and the experimental result will be reported. The protocol of LADM-II system will be also present.
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Weibiao Chen, Yutian Lu, Jinxian Li, Hongyan Jian, Xuemei Cui, Shuyong Yin, Ying Wang, and Chunlin Chu "Developing of laser airborne depth mapping in China", Proc. SPIE 4893, Lidar Remote Sensing for Industry and Environment Monitoring III, (21 March 2003); doi: 10.1117/12.466266; https://doi.org/10.1117/12.466266

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