Semi-analytical Model of the Waveform of Plantation Target for a Satellite Laser Altimeter

doi:10.11947/j.AGCS.2018.20170488

Abstract

Abstract: The space borne laser altimeter has been widely applied in the extraction of characteristic of plantation target,demonstrating LiDAR technology's huge potential in forestry.As the complexity of the formation of the waveform of plantation target,a waveform simulator basing on semi analytical model has been developed,which performs well in simulating the waveform of certain inputs.Using the GLAS waveforms captured on the area of Daxing'an Mountain,the correlation coefficient R² between the GLAS waveforms and the simulated waveforms is 0.91.The capacity of quantitative control of certain parameters like canopy shape,terrain slope,surface roughness and understory vegetation and producing a large number within limited time,allows it taking advantages in analyzing the influence of each parameter respectfully.Thus,the conclusion can provide guidance for data sources selection in inversion of vegetation target.

Key words: semi-analytical model, waveform simulator, laser altimeter, plantation target

CLC Number:

P237

ZHANG Zhiyu, WANG Hong, ZHANG Wenhao, HUANG Ke, ZHOU Hui, MA Yue, LI Song. Semi-analytical Model of the Waveform of Plantation Target for a Satellite Laser Altimeter[J]. Acta Geodaetica et Cartographica Sinica, 2018, 47(2): 142-152.

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