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46 PARAMETER ESTIMATION
sensory parameter
object, system measurements estimation estimated
physical process, parameters
or event
described by
parameters measurement system
Figure 3.1 Parameter estimation
1.5
z
1
measurement
0.5
0
0 0.5 1 1.5
backscattering coefficient x
Figure 3.2 Different realizations of the backscattering coefficient and its corres-
ponding measurement
