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• “ ”

• “ ”

noise

signal

P

PSNR

noise

signal

dBP

PSNR 10log10

+

“ ”

dtetxfX ftiDef

2)()(

BffX 0)(

s

Defs

sf

Tf

BBf1

;2

2

»

»

»

»

»

»

»

»

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±

?

∆x = xreal − xmeasured

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randomsystmeasuredtrue eeXX

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