An optimized implementation of 3D seismic wave simulation with GPUs

Zhang, Changhua; Luo, Min; Zhu, Chenghong; Chen, Yequan; Dong, Ling

doi:10.1190/igcbeijing2014-171

Cited by 1 publication

(1 citation statement)

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“…Array signal processing is a technology that uses a group of sensor arrays to spatially sample signals and then uses corresponding signal processing algorithms to enhance and estimate the parameters of the received data. Compared to methods that use a single sensor to collect and process signals, array signal processing technology can achieve spatial gains by utilizing the spatial characteristics of the signal, thereby improving the accuracy of parameter estimation [1].…”

Section: Introductionmentioning

confidence: 99%

Research on High Robustness Underwater Target Estimation Method Based on Variational Sparse Bayesian Inference

Wang

et al. 2023

Remote Sensing

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Pulse noise (such as glacier fracturing and offshore pile driving), commonly seen in the marine environment, seriously affects the performance of Direction-of-Arrival (DOA) estimation methods in sonar systems. To address this issue, this paper proposes a high robustness underwater target estimation method based on variational sparse Bayesian inference by studying and analyzing the sparse prior assumption characteristics of signals. This method models pulse noise to build an observation signal, completes the derivation of the conditional distribution of the observed variables and the prior distribution of the sparse signals, and combines Variational Bayes (VB) theory to approximate the posterior distribution, thereby obtaining the recovered signal of the sparse signals and reducing the impact of pulse noise on the estimation system. Our simulation results showed that the proposed method achieved higher estimation accuracy than traditional methods in both single and multiple snapshot scenarios and has practical potential.

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Section: Introductionmentioning

confidence: 99%

Research on High Robustness Underwater Target Estimation Method Based on Variational Sparse Bayesian Inference

Wang

et al. 2023

Remote Sensing

View full text Add to dashboard Cite

show abstract

An optimized implementation of 3D seismic wave simulation with GPUs

Cited by 1 publication

References 8 publications

Research on High Robustness Underwater Target Estimation Method Based on Variational Sparse Bayesian Inference

Research on High Robustness Underwater Target Estimation Method Based on Variational Sparse Bayesian Inference

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