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- W3180188093 abstract "Tree position plays an important role in research on forest resources and ecological functions, and quickly and accurately obtaining tree position data has long been the focus of investigators. However, the classical method is time-consuming and laborious; thus, a convenient method of measuring tree position is needed. The primary achievements of this study include the following: (1) a device was designed for precise location of trees; (2) a new location algorithm was proposed for pentagonal localization based on the received signal strength indication and ultrawideband technology; and (3) a PC software application was developed for automatically storing and uploading tree position data. The device was applied to 10 circular plots with a diameter of 24 m to test the positioning speed and accuracy. The results showed that the tree positions could be accurately estimated. On the <math xmlns=http://www.w3.org/1998/Math/MathML id=M1> <mi>x</mi> </math> - and <math xmlns=http://www.w3.org/1998/Math/MathML id=M2> <mi>y</mi> </math> -axes, the biases were -3.94 and 3.36 cm, respectively, and the root mean square errors (RMSEs) were 28.39 and 28.53 cm, respectively. The mean error (Ed) between the estimated and reference distances was 36.13 cm, and the standard deviation was 16.67 cm. The device is inexpensive and easy to use and carry in the field; thus, it is suitable for locating trees in environments with complex terrain." @default.
- W3180188093 created "2021-07-19" @default.
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- W3180188093 date "2021-07-06" @default.
- W3180188093 modified "2023-10-15" @default.
- W3180188093 title "A Method to Locate Tree Positions Using Ultrawideband Technology" @default.
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- W3180188093 doi "https://doi.org/10.1155/2021/5539302" @default.
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