scholarly journals A conjugate-gradient approach to the parameter estimation problem of magnetic resonance advection imaging

2020 ◽  
Vol 28 (8) ◽  
pp. 1154-1165
Author(s):  
Simon Hubmer ◽  
Andreas Neubauer ◽  
Ronny Ramlau ◽  
Henning U. Voss
Keyword(s):  
Parameter Estimation ◽  
Magnetic Resonance ◽  
Conjugate Gradient ◽  
Estimation Problem ◽  
Parameter Estimation Problem ◽  
Gradient Approach

scholarly journals On the parameter estimation problem of magnetic resonance advection imaging

2018 ◽  
Vol 12 (1) ◽  
pp. 175-204 ◽  
Author(s):  
Simon Hubmer ◽  
◽  
Andreas Neubauer ◽  
Ronny Ramlau ◽  
Henning U. Voss ◽  
...  
Keyword(s):  
Parameter Estimation ◽  
Magnetic Resonance ◽  
Estimation Problem ◽  
Parameter Estimation Problem

A RELAX Based Method for Spotlight SAR Imaging

2012 ◽  
Vol 500 ◽  
pp. 362-367
Author(s):  
Xiao Zhen Ren ◽  
Yao Qin ◽  
Hong Liang Fu
Keyword(s):  
Parameter Estimation ◽  
Estimation Problem ◽  
Noisy Environment ◽  
Parameter Estimation Problem ◽  
Imaging Algorithm ◽  
Imaging Results ◽  
Sar Imaging ◽  
Simulation Results ◽  
Noisy Condition

The imaging problem of spotlight SAR is converted to a parameter estimation problem of several monochromatic signals in additive white Gaussian noisy condition in this paper. Moreover, a spotlight SAR imaging algorithm based on RELAX is presented in detail. Traditional polar format algorithm and the presented method are applied to spotlight SAR imaging respectively, and the imaging results are compared. Simulation results show that the polar format algorithm doesn’t give satisfactory imaging results, while the proposed method adapts the noisy environment better and obtains better results.

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