Patent ID: 11920981
Assignee: BEIJING SEETRUM TECHNOLOGY CO., LTD.
Field: Measurement (Instruments)
Classification: CPC G | IPC G

Claim 6:
7. The spectral restoring method according to claim 6, wherein solving the first constraint equation, the second constraint equation and the third constraint equation to obtain the restoring tensor comprises:
multiplying the first constraint equation by a sensitivity coefficient, and adding the product to the second constraint equation and the third constraint equation to obtain a combination equation, represented as:

g(ck)=(ckÂe)2+λDck∥22+α(ckÂsk−1)2→0;

deriving and zeroing the combination equation, represented as:

g′(ck)=0;

obtaining the channel restoring vector as:

ck=α(ÂTeTeÂ+λDTD+αskTÂTÂsk)−1·Âsk;

iterating the above steps to obtain the entire restoring tensor as:

C(i,j,:,k)=α(Âi,jTÂi,j+λDTD+αskTÂi,jTÂi,jsk)−1·Âi,jsk.