Improved ADMM for Sparse Reconstruction of Bearing Vibration Signal

Liu, He; Duan, Shouwu; Song, Wanqing

doi:10.1109/phm-shanghai49105.2020.9280986

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2023

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“…The problem of convex optimization with separable structure can be processed in blocks to reduce the solution complexity by using Alternating Direction Method of Multipliers (ADMM). Due to its high estimation accuracy and fast convergence, it is of frequent use in signal processing, image processing, machine learning and other fields [7].…”

Section: Introductionmentioning

confidence: 99%

A Novel two-dimensional DOA Estimation Algorithm for Low Elevation Targets

Sanjeev Kumar Machkuri, Y Ravi Kumar

2023

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This paper proposes a fast Two-Dimensional DOA Estimation algorithm for low-elevation targets of Very High Frequency (VHF) Array Radar using an estimation method based on the Alternating Direction Method of Multipliers (ADMM). The method firstly utilizes the uncoupling characteristics of azimuth and pitch angle under a uniform planar array, to convert the two-dimensional angle estimation problem into two one-dimensional DOA estimation problems. The target information is extracted by digital beamforming in the azimuth and elevation dimensions. Finally, the Alternating Direction Method of Multipliers is used for estimation of the azimuth and pitch angle. This method avoids the two-dimensional joint estimation, which is complex in the calculation, the complexity is greatly reduced, and the operation process does not require Eigenvalue decomposition, further improving the operation efficiency.

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Section: Introductionmentioning

confidence: 99%

A Novel two-dimensional DOA Estimation Algorithm for Low Elevation Targets

Sanjeev Kumar Machkuri, Y Ravi Kumar

2023

tjjpt

View full text Add to dashboard Cite

show abstract

Improved ADMM for Sparse Reconstruction of Bearing Vibration Signal

Cited by 1 publication

References 14 publications

A Novel two-dimensional DOA Estimation Algorithm for Low Elevation Targets

A Novel two-dimensional DOA Estimation Algorithm for Low Elevation Targets

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