http://people.ee.ethz.ch/~rsmith/idfiles/SysID_lecture05_small.pdf

... . Nawab, Signals & Systems, Prentice-Hall, 2nd Ed., 1996. Empirical Transfer Function Estimation (ETFE ... ): Lennart Ljung, System Identification; Theory for the User, (see Section 6.3) Prentice-Hall, 2nd Ed., 1999 ... . Nawab, Signals & Systems, Prentice-Hall, 2nd Ed., 1996. Empirical Transfer Function Estimation (ETFE ... ): Lennart Ljung, System Identification; Theory for the User, (see Section 6.3) Prentice-Hall, 2nd Ed., 1999 ...