Journal of Geographical Sciences ›› 2019, Vol. 29 ›› Issue (5): 846-860.doi: 10.1007/s11442-019-1632-z
Cunjian YANG1(), Guanghong XU2, Hechao LI3, Defei YANG4, He HUANG5, Jing NI1, Xiao LI6, Xiao XIANG3
Received:
2018-09-18
Accepted:
2019-01-10
Online:
2019-05-25
Published:
2019-04-19
About author:
Author: Yang Cunjian (1967-), PhD, specialized in GIS and remote sensing. E-mail:
Supported by:
Cunjian YANG, Guanghong XU, Hechao LI, Defei YANG, He HUANG, Jing NI, Xiao LI, Xiao XIANG. Measuring the area of cultivated land reclaimed from rural settlements using an unmanned aerial vehicle[J].Journal of Geographical Sciences, 2019, 29(5): 846-860.
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Table 1
P2V technology parameters"
Parameters | Values |
---|---|
UAV length | 350 mm |
Wing span | 420 mm |
Take-off and landing mode | Vertical |
Maximum take-off weight | 1,400 g |
Maximum flight speed | 15 m/s |
Maximum ascending speed/descending speed | Ascending: 6 m/s; descending: 2 m/s |
Maximum duration of flight | 25 minutes |
Power source | Electricity |
Material | Plastics |
Working environmental temperature | Between zero and 40℃ |
Outdoor communication distance | Between 500 m and 700 m |
Controllable rotation range of the cloud platform | Between -90° and 0° |
Precise angle control of the cloud platform | ± 0.03° |
Table 3
Mosaic P2V UAV image plot errors (m2)"
Plot No. | Reference image | Mosaic P2V UAV image | Difference | Error(%) | Accuracy (%) |
---|---|---|---|---|---|
Plot 5 | 1,638.84 | 1,645.25 | 6.41 | 0.391 | 99.609 |
Plot 4 | 1,378.08 | 1,375.24 | -2.84 | -0.206 | 99.794 |
Plot 1 | 1,250.38 | 1,242.64 | -7.74 | -0.619 | 99.381 |
Plot 2 | 1,138.4 | 1,148.75 | 10.35 | 0.901 | 99.099 |
Plot 3 | 758.95 | 759.9 | 0.95 | 0.125 | 99.875 |
Total | 6,164.65 | 6,171.78 | 7.13 | 0.116 | 99.884 |
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