A z-Transform with
. This transform can be used to detect frequencies which are not Integer multiples of the lowest
Discrete Fourier Transform frequency.
See also z-Transform
Graham, R. L.; Knuth, D. E.; and Patashnik, O. Concrete Mathematics, 2nd ed. Reading, MA: Addison-Wesley, 1994.
© 1996-9 Eric W. Weisstein