loading page

Type parameter estimation of 2D-GTD model based on ADMM approach
  • +3
  • Mingming Jin,
  • Jun Wang,
  • Shaoming Wei,
  • Zhiqiang Zeng,
  • Zhang Chi,
  • Fangrui Qu
Mingming Jin
Author Profile
Jun Wang
Beihang University
Author Profile
Shaoming Wei

Corresponding Author:[email protected]

Author Profile
Zhiqiang Zeng
Author Profile
Zhang Chi
Tsinghua University
Author Profile
Fangrui Qu
Author Profile


The type parameter helps in the scattering mechanism analysis and scattering center identification. However, current approximate solution methods based on spectral estimation are noise-sensitive and have poor accuracy. In this letter, a high-precision approach for the type parameter based on the alternating direction method of multipliers (ADMM) is proposed. We use logarithmic transformation 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.
18 Feb 2024Submitted to Electronics Letters
29 Feb 2024Reviewer(s) Assigned
08 Mar 2024Review(s) Completed, Editorial Evaluation Pending
08 Mar 2024Editorial Decision: Revise Minor