Forest and Grassland Resources Research >
Research on Tree Location Based on UWB Sensors
Received date: 2020-01-31
Revised date: 2020-04-20
Online published: 2020-06-15
Tree location is an important survey factor in forest plot surveys.Due to the complexity of the forest environment,current techniques for tree location are less mature.Aiming at the problems of current tree position measurement methods or technologies,such as low efficiency,inconvenience,high cost,and unsuitability for non-line-of-sight measurement,this paper proposes a method based on UWB sensors combined with an altimeter to obtain tree position information.And designed a tree position sampling device.Eight selected plots with various tree species and different slopes were tested.First,four UWB base stations were arranged in each plot,and then the device carrying the UWB tag was used to sample the distance between each tree and each base station.The collected data were analyzed by MATLAB to investigate the impact of different weight values on positioning accuracy.The results show that the existence of an optimal weight value can reduce the average positioning error by 3.31cm.Compared with other quadrilateral positioning algorithms,the complexity is lower,and it is more suitable for tree positioning under non-line-of-sight situations such as dense foliage and complex landforms.
Key words： forest plot survey; tree location; UWB; quadrilateral ranging; simulation
Siqing ZHENG , Luming FANG , Linhao SUN , Xinyu ZHENG , Jiangjun LIU . Research on Tree Location Based on UWB Sensors[J]. Forest and Grassland Resources Research, 2020 , 0(2) : 103 -111 . DOI: 10.13466/j.cnki.lyzygl.2020.02.016
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