RFI Source Localization in Microwave Interferometric Radiometry: A Sparse Signal Reconstruction Perspective

2020 ◽  
Vol 58 (6) ◽  
pp. 4006-4017
Author(s):  
Dong Zhu ◽  
Jun Li ◽  
Gang Li
Keyword(s):  
Source Localization ◽  
Signal Reconstruction ◽  
Sparse Signal ◽  
Sparse Signal Reconstruction

scholarly journals Localization of Near-Field Sources Based on Sparse Signal Reconstruction with Regularization Parameter Selection

2017 ◽  
Vol 2017 ◽  
pp. 1-7 ◽  
Author(s):  
Shuang Li ◽  
Wei Liu ◽  
Daqing Zheng ◽  
Shunren Hu ◽  
Wei He
Keyword(s):  
Source Localization ◽  
Regularization Parameter ◽  
Signal Reconstruction ◽  
Weighted Least Squares ◽  
Near Field ◽  
Superior Performance ◽  
Sparse Signal ◽  
Spatial Correlations ◽  
Sparse Signal Reconstruction ◽  
Two Parameters

Source localization using sensor array in the near-field is a two-dimensional nonlinear parameter estimation problem which requires jointly estimating the two parameters: direction-of-arrival and range. In this paper, a new source localization method based on sparse signal reconstruction is proposed in the near-field. We first utilize l1-regularized weighted least-squares to find the bearings of sources. Here, the weight is designed by making use of the probability distribution of spatial correlations among symmetric sensors of the array. Meanwhile, a theoretical guidance for choosing a proper regularization parameter is also presented. Then one well-known l1-norm optimization solver is employed to estimate the ranges. The proposed method has a lower variance and higher resolution compared with other methods. Simulation results are given to demonstrate the superior performance of the proposed method.

Smoothing inertial neurodynamic approach for sparse signal reconstruction via Lp-norm minimization

2021 ◽  
Vol 140 ◽  
pp. 100-112
Author(s):  
You Zhao ◽  
Xiaofeng Liao ◽  
Xing He ◽  
Rongqiang Tang ◽  
Weiwei Deng
Keyword(s):  
Signal Reconstruction ◽  
Sparse Signal ◽  
Sparse Signal Reconstruction ◽  
Lp Norm ◽  
Norm Minimization

Underdetermined DOA Estimation for Wideband Signals via Joint Sparse Signal Reconstruction

2019 ◽  
Vol 26 (10) ◽  
pp. 1541-1545 ◽  
Author(s):  
Yunmei Shi ◽  
Xing-Peng Mao ◽  
Chunlei Zhao ◽  
Yong-Tan Liu
Keyword(s):  
Signal Reconstruction ◽  
Doa Estimation ◽  
Sparse Signal ◽  
Sparse Signal Reconstruction ◽  
Wideband Signals
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