etfe {sysid}

Estimate empirical transfer function

Description

Estimates the emperical transfer function from the data by taking the ratio of the fourier transforms of the output and the input variables

Usage

etfe(data, n = 128)

Arguments

data

an object of class idframe

n

frequency spacing (Default: 128)

Value

an idfrd object containing the estimated frequency response

References

Arun K. Tangirala (2015), Principles of System Identification: Theory and Practice, CRC Press, Boca Raton. Sections 5.3 and 20.4.2

See Also

fft

Examples

data(arxsim)
frf <- etfe(arxsim)