7 Curve Fitting
About Curve Fitting
In the digital domain, a data set can be represented by two input sequences: Y Values and X Values. A sample or point in the data set can be written as
(x[i],y[i])
where x[i] is the ith element of the sequence X Values, and y[i] is the ith element of the sequence Y Values. Each y[i] is related to the corresponding x[i]. You are interested in finding the relationship between y[i] and x[i] in the digital domain and expressing it in the form of an equation in the analog domain.
Curve fitting acts as a bridge between the digital and analog worlds. Using curve fitting, digital data can be represented by a continuous model having a certain set of parameters. The basic idea is to extract a set of curve parameters ...
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