Estimate time delay (dead time) from data
nk = delayest(Data)
nk = delayest(Data,na,nb,nkmin,nkmax,maxtest)
nk = delayest(Data) estimates time delay
Data is an
containing the input-output data. It can also be an
defining frequency-response data. Only single-output data can be handled.
returned as an integer or a row vector of integers, containing the
estimated time delay in samples from the input(s) to the output in
The estimate is based on a comparison of ARX models with different delays:
nk = delayest(Data,na,nb,nkmin,nkmax,maxtest) specifies
additional options. The integer
na is the order
of the A polynomial (default 2).
nb is a row vector
of length equal to the number of inputs, containing the order(s) of
the B polynomial(s) (default all 2).
row vectors of the same length as the number of inputs, containing
the smallest and largest delays to be tested. Defaults are
nkmin = 0 and
nkmax = nkmin+20.
entered as scalars in the multiple-input case, all inputs will be
assigned the same values.
maxtest is the largest
number of tests allowed (default 10,000).
Introduced before R2006a