<< xcorr2

Signal Processing

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zp2tf

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Zero-pole to transfer function conversion.

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Syntax

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[NUM, DEN] = zp2tf(Z, P, K)

Input argument

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Z

Locations of zeros, organized in columns for each system output.

P

Locations of poles, recorded as a column vector.

K

Gains.

Output argument

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NUM

Coefficients in the numerator, organized by rows corresponding to each system output.

DEN

Coefficients in the denominator, arranged as a row vector.

Description

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[NUM, DEN] = zp2tf(Z, P, K) returns polynomial transfer function representation from zeros and poles.

Example

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p = [0.5;0.45+0.5i;0.45-0.5i];
z = [-1;i;-i];       
k = 1;
[n, d] = zp2tf(z, p, k)

Bibliography

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zpk2tf scipy implementation (MIT)

See also

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tf2zpk.

History

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Version	Description
1.0.0	initial version

Author

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Allan CORNET