Real-time simplified correction method for tropospheric refraction error

Qiao Jiang; Du Xiaoyan; Wei Peipei

doi:10.11884/HPLPB201830.180146

Volume 30 Issue 10

Oct. 2018

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Qiao Jiang, Du Xiaoyan, Wei Peipei. Real-time simplified correction method for tropospheric refraction error[J]. High Power Laser and Particle Beams, 2018, 30: 103205. doi: 10.11884/HPLPB201830.180146

Citation:

Qiao Jiang, Du Xiaoyan, Wei Peipei. Real-time simplified correction method for tropospheric refraction error[J]. High Power Laser and Particle Beams, 2018, 30: 103205. doi: 10.11884/HPLPB201830.180146

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Real-time simplified correction method for tropospheric refraction error

doi: 10.11884/HPLPB201830.180146

Qiao Jiang^1
,,
Du Xiaoyan^{1, 2
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,},
Wei Peipei¹

1.
Institute of Information Systems Engineering, Information Engineering University, Zhengzhou 450001, China
2.
School of Information Engineering, Zhengzhou University, Zhengzhou 450001, China

Received Date: 2018-05-18
Rev Recd Date: 2018-07-19
Publish Date: 2018-10-15

Abstract

Abstract

Tropospheric refraction error is one of the main factors that affect the accuracy of radar measurement and positioning system. In view of the poor real-time and low resolution of the Vienna Mapping Function 1 (VMF1) in refraction error correction, this paper introduces the GPT2w model that can provide some relevant parameters with a resolution of 1°×1°, and build a new model that named as SG-VMF1 by combining with the Saastamoinen model. Based on the new model and the calculation principle of the mapping function method, the tropospheric refraction error values of 4 International GNSS Service (IGS) stations at different elevation angles are estimated. The results demonstrate that when taking the results calculated by ray-tracing method based on IGS meteorological data as a reference, the RMS with the result of SG-VMF1 model and relevant calculation theory can reach 0.4 m when the elevation angle is 6°, and the RMS can reach 0.1 m when the elevation angle is greater than 30°. The new calculation method is feasible and effective, and with real-time and higher resolution.
- tropospheric refraction error,
- error correction,
- mapping function method,
- real-time,
- GPT2w model,
- VMF1

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References(13)

References

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