1. Denoising Reconstruction of Evaporation Duct Based on Variable Parameter Threshold Approximation Message Passing Method
- Author
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Tian Wen-biao, Rui Guo-sheng, Dong Dao-guang, Zhang Ya-nan, and Liu Ge
- Subjects
010504 meteorology & atmospheric sciences ,Noise measurement ,Computer science ,Noise (signal processing) ,Noise reduction ,Message passing ,Process (computing) ,Approximation algorithm ,020206 networking & telecommunications ,02 engineering and technology ,01 natural sciences ,Compressed sensing ,Transmission (telecommunications) ,0202 electrical engineering, electronic engineering, information engineering ,Algorithm ,0105 earth and related environmental sciences - Abstract
In order to obtain the spatiotemporal situation of the evaporation duct accurately from a small amount of measurement data which is mixed into the noise during the transmission process affecting the high-precision reconstruction, this paper proposes an approximate message passing method (AMP) based on variable parameter threshold to realize the denoising reconstruction of noisy signals. By improving the threshold function in AMP, it is more suitable for the sparse characteristics of the evaporation duct parameters and converging more quickly. Theoretical analysis and experiments show that the overall performance of the denoising reconstruction method proposed in this paper is better than the control group.
- Published
- 2019