Residual wave front phase estimation in the reimaged Lyot plane for the Eclipse coronagraphic telescope

2003 ◽  
Author(s):  
Stuart B. Shaklan ◽  
Dwight Moody ◽  
Joseph J. Green
Keyword(s):  
Wave Front ◽  
Phase Estimation

Wave-front phase estimation from Fourier intensity measurements

1989 ◽  
Vol 6 (7) ◽  
pp. 1020 ◽  
Author(s):  
J. N. Cederquist ◽  
J. R. Fienup ◽  
C. C. Wackerman ◽  
S. R. Robinson ◽  
D. Kryskowski
Keyword(s):  
Wave Front ◽  
Phase Estimation ◽  
Intensity Measurements

Wave-front evaluation of the Ni-like Ag laser

2001 ◽  
Vol 11 (PR2) ◽  
pp. Pr2-155-Pr2-158 ◽  
Author(s):  
K. Murai ◽  
S. Sebban ◽  
H. J. Tang ◽  
Y. Yoshizumi ◽  
H. Daido ◽  
...  
Keyword(s):  
Wave Front

An Absolute Phase Estimation Method for Interferometry Imagery

2019 ◽  
Vol 1 (2) ◽  
pp. 14-19
Author(s):  
Sui Ping Lee ◽  
Yee Kit Chan ◽  
Tien Sze Lim
Keyword(s):  
Noise Suppression ◽  
Estimation Method ◽  
Phase Image ◽  
Phase Estimation ◽  
Phase Reconstruction ◽  
Estimation Algorithms ◽  
Absolute Phase ◽  
Filtering Rate ◽  
Interferometric Phase ◽  
Image Performance

Accurate interpretation of interferometric image requires an extremely challenging task based on actual phase reconstruction for incomplete noise observation. In spite of the establishment of comprehensive solutions, until now, a guaranteed means of solution method is yet to exist. The initially observed interferometric image is formed by 2π-periodic phase image that wrapped within (-π, π]. Such inverse problem is further corrupted by noise distortion and leads to the degradation of interferometric image. In order to overcome this, an effective algorithm that enables noise suppression and absolute phase reconstruction of interferometric phase image is proposed. The proposed method incorporates an improved order statistical filter that is able to adjust or vary on its filtering rate by adapting to phase noise level of relevant interferometric image. Performance of proposed method is evaluated and compared with other existing phase estimation algorithms. The comparison is based on a series of computer simulated and real interferometric data images. The experiment results illustrate the effectiveness and competency of the proposed method.

Wave-front inversion in induced light scattering

1978 ◽  
Vol 126 (12) ◽  
pp. 683-686
Author(s):  
Boris Ya. Zel'dovich ◽  
V.V. Ragul'skii
Keyword(s):  
Light Scattering ◽  
Wave Front
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