APPLICATION OF REGULARIZATION IN THE COMPUTED TOMOGRAPHY IMAGING SPECTROMETER
Liu Liangyun,Xiangli Bin,Li Yingcai,Zhao Baochang Space Optics
Laboratory,Xi′an Institute of Optics and Precision Mechanics,Academia Sinica,Xi′an 710068
Firstly,the primary theories of CTIS and thd application of SVD are introduced in
chromotomography.Secondly,in order to improve the ill posed system matrix and the stability
of the CTIS,we succeed in decreasing the condition number of the system matrix by designing
the diffraction efficiency of the different diffraction orders.On the other hand,the regularization in
SVD is inducted and then the Signal to Noise is improved.Finally,the simulated experiments
show that the theorems and the algorithms are precise and efficient.
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