Supervisor:
Southwest Ordnance Industry Bureau
Organizer:
Chongqing Ordnance Industry Society
Chongqing University of Technology
Chongqing University of Technology
The radio wave refraction correction method of space target surveillance radar
| DOI: | 10.11809/bqzbgcxb2023.05.036 |
| Keywords: | space target surveillance radar; troposphere; ionosphere; radio wave refraction |
| Abstract: | Radio wave refraction caused in a radio wave environment has a great influence on the detection accuracy for space target surveillance radar. The troposphere and ionosphere are modeled mathematically in this paper. In order to improve the precision of the model, a data driven model updating method is firstly proposed. The correction formulas of radio wave refraction for targets in the atmosphere and ionosphere are derived. Then, the tropospheric and ionospheric models are driven by meteorological data and ionosphere probing data respectively, and the precision of the two models is verified. Finally, radio wave environment refraction correction simulation verification is carried out for the space target surveillance radar. The experimental results show that the measurement error of the radar slant distance reduces by 36.9% , and the elevation measurement error reduces by 24.3%. The method presented in this paper has been applied to a certain type of radar in engineering. Compared with the modification of the empirical formulas in the original system, the correction effect is remarkable. |
| Issue: | Vol. 44 No. 5 (2023) |
| Published: | 2023-05-28 |
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