Details

Autor(en) / Beteiligte

• Jin, Mingming
• Wang, Jun
• Wei, Shaoming
• Zeng, Zhiqiang
• Zhang, Chi
• Qu, Fangrui

Titel

Type parameter estimation of 2D‐GTD model based on ADMM approach

Ist Teil von

• Electronics letters, 2024-05, Vol.60 (10), p.n/a

Ort / Verlag

Wiley

Erscheinungsjahr

2024

Link zum Volltext

Quelle

Free E-Journal (出版社公開部分のみ）

Beschreibungen/Notizen

• The type parameter helps in scattering mechanism analysis and scattering centre identification. However, current approximate solution methods based on spectral estimation are noise‐sensitive and exhibit low accuracy. In this letter, a high‐precision approach for the type parameter based on the alternating direction method of multipliers (ADMM) is proposed. Logarithmic transformation is used to separate the type parameter and the amplitude from the coupling term, and initially obtain the closed‐form solution of the type parameter. Then, the regularization term of l2‐norm is used for denoising. Finally, a joint optimization model based on ADMM is constructed to effectively estimate the type parameter. Simulation results confirm the high accuracy of the proposed approach. In this letter, a high‐precision approach for the type parameter based on the alternating direction method of multipliers (ADMM) is proposed. Logarithmic transformation is used to separate the type parameter and the amplitude from the coupling term, and initially obtain the closed‐form solution of the type parameter. Then, the regularization term of l2‐norm is used for denoising and a joint optimization model based on ADMM is constructed to effectively estimate the type parameter.