Electronic Science and Technology ›› 2020, Vol. 33 ›› Issue (10): 57-63.doi: 10.16180/j.cnki.issn1007-7820.2020.10.010
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LI Shihao,WANG Jian
Received:2019-07-16
Online:2020-10-15
Published:2020-10-20
Supported by:CLC Number:
LI Shihao,WANG Jian. Analysis of Influences of Irregular Station Arrangement on Location Accuracy of TDOA System[J].Electronic Science and Technology, 2020, 33(10): 57-63.
Figure 1.
Schematic diagram of regular Y-type station layout"
Figure 2.
The positioning performance of the system under the condition of regular Y-type station layout"
Figure 3.
Location performance of irregular station distribution system with different baseline length (a)Distribution of equal precision curve of system positioning when baseline length L1is 30 km (b) Distribution of equal precision curve of system positioning when baseline length L1is 45 km"
Figure 4.
System positioning performance at different baseline angle θ (a)Distribution of 1 km equal precision curve when the angle between baselines is 30°(b) Distribution of 1 km equal precision curve when the angle between baselines is 60° (c) Distribution of 1 km equal precision curve when the angle between baselines is 90° (d) Distribution of 1 km equal precision curve when the angle between baselines is 120° (e) Distribution of 1 km equal precision curve when the angle between baselines is 150° (f) Distribution of 1 km equal precision curve when the angle between baselines is 180°"
Figure 5.
System positioning performance at different base station heights (a)Equal precision curve distribution of system positioning at the height of the main base station of 0.05 km (b) Equal precision curve distribution of system positioning at the height of the main base station of 0.1 km (c) Equal precision curve distribution of system positioning at the height of the main base station of 0.15 km (d) Equal precision curve distribution of system positioning at the height of the main base station of 0.2 km"
Figure 6.
System positioning performance at different auxiliary station A altitudes (a)Equal precision curve distribution of system positioning at A height of auxiliary station 0.05 km (b) Equal precision curve distribution of system positioning at A height of auxiliary station 0.1 km (c) Equal precision curve distribution of system positioning at A height of auxiliary station 0.15 km (d) Equal precision curve distribution of system positioning at A height of auxiliary station 0.2 km"
Figure 7.
System positioning performance at 0.1 km height of main station O and auxiliary station A"
Figure 8.
Positioning performance of auxiliary station A and B with height of 0.1 km"
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