FILTSTR Function

Constructs a valid filter data structure.

Usage

h = FILTSTR(b, a)

Input Parameters

b—A one-dimensional array or scalar value representing the numerator of the filter.

a—A one-dimensional array or scalar value representing the denominator of the filter.

Returned Value

h—A structure containing the filter.

Keywords

Name—A scalar string containing a name for the filter.

Discussion

For the numerator polynomial B(z) such that:

B(z) = b₀ + b₁z^–1 + b₂z^–2 + ...

and the dominator polynomial A(z) such that:

A(z) = a₀ + a₁z^–1 + a₂z^–2 + ...

FILTSTR constructs a filter data structure H(z) such that:

H(z) = B(z)/A(z)

Example

FILTSTR is used to produce a filter H(z) such that:

 

h = FILTSTR([1, 0, 0, 1],[5, 1, 2])

See Also

PARSEFILT