butterPoly(specs)

Generates Butterworth polynomials

Function only- no corresponding object

Syntax

o_butterPoly(specs)

specs: scalar record with fields:
     function: enum (LP,BP,BS,HP)
     Fl: scalar Real -  lower cutoff frequency
     Fu: scalar Real - upper cutoff frequency

return: Text - polynomial in S

Usage

Given frequency specs this calculates a polynomial that is intended to be placed in a formula to generate a frequency domain transfer function. That way signals can be passed through this formula at will.

Location

menu: no menu pick - to access use the Function and Object browser

library: sigLib

Example

Given LP function, Fu=100, 3rd order, the resulting polynomial transfer function in S is:

(-1*(-49.99999999999999, 86.60254037844388)*-1*(-100, 6.123031769111886E-015)*-1*(-49.99999999999999, -86.60254037844388))/((S-(-49.99999999999999, 86.60254037844388))*(S-(-100, 6.123031769111886E-015))*(S-(-49.99999999999999, -86.60254037844388)))

Notes

Reference

Dependencies

Supported On

See Also

chebyPoly