Infrared and Laser Engineering, Volume. 49, Issue 11, 20200245(2020)
Full waveform decomposition of spaceborne laser based on genetic algorithm
Figures & Tables(9)
Fig. 5. Data and gradient distribution map of GF-7 in the study area
Fig. 6. Data and gradient distribution map of GF-7 in the study area
Table 1.
Basic parameters of the GF-7 laser altimeter
高分七号激光测高仪基本参数
View tableView in ArticleTable 1.
Basic parameters of the GF-7 laser altimeter
高分七号激光测高仪基本参数
Parameters Value Laser beam 2 Pulse wavelength/nm 1064 Pulse energy/mJ 100-180 (adjustable) Pulse width/ns 4-8 Repetition rate/Hz 3/6 (adjustable) Digital interval/ns 0.5 Ranging range/km 450-550 Ranging accuracy/m ≤0.3
Table 2.
Statistical table of waveform decomposition test results
波形分解实验结果统计表
View tableView in ArticleTable 2.
Statistical table of waveform decomposition test results
波形分解实验结果统计表
Feature type Traditional method Improved waveform data processing method Number RSS R 2Number RSS R 2Forest 2 Divergence 0 4 0.000 17 0.993 Mountain 1 0.005 674 0.931 3 0.000 16 0.997 Desert 1 0.000 679 0.990 5 1 0.000 169 9 0.997 Duilding 2 0.000 835 0.999 2 0.000 07 0.999 Lake 1 0.000 373 9 0.998 1 0.000 04 0.999 Sea 1 0.000 16 0.99 1 0.000 04 0.999 Field 1 0.001 18 0.997 1 0.000 04 0.999 Ice 1 0.000 26 0.99 1 0.000 04 0.999
Table 3.
Indexs comparison of accuracy evalution of the height extraction used by the traditional method and the improved method
传统方法与改进方法树高提取精度指标对比
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Indexs comparison of accuracy evalution of the height extraction used by the traditional method and the improved method
传统方法与改进方法树高提取精度指标对比
Evaluating indicator ME /mRMSE /mCOV Traditional method 0.618 3.160 9 0.71 Improved waveform data processing method 0.534 1.160 9 0.87
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Junfeng Xie, Chenchen Yang, Yongkang Mei, Baomin Han. Full waveform decomposition of spaceborne laser based on genetic algorithm[J]. Infrared and Laser Engineering, 2020, 49(11): 20200245
Paper Information
Category: Issue-Space-borne laser altimetry technology
Received: Jun. 14, 2020
Accepted: --
Published Online: Jan. 4, 2021
The Author Email: Yang Chenchen (chyangcc@163.com)
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