`a`: Input. An array of complex numbers`a[0..2N-1]`with`a[2j]`and`a[2j+1]`respectively containing the real and imaginary parts.`b`: Input. An array of complex numbers`b[0..2N-1]`with`b[2j]`and`b[2j+1]`respectively containing the real and imaginary parts.`c`: Output. The array of complex numbers`c[0..2N-1]`with`c[2j]`and`c[2j+1]`respectively containing the real and imaginary parts of .`ncomplex`: Input. The number of complex numbers in the arrays.

This routine is particularly useful when you want to reconstruct the
raw interferometer output
that would have produced
a particular interferometer displacement
(see
for example `normalize_gw()` in Section ). This
occurs for example if you are ``injecting" chirps into the raw
interferometer output; they first need to be deconvolved with the
response function of the instrument. One can invert this equation
using `ratio()` since
.

- Author: Bruce Allen, ballen@dirac.phys.uwm.edu
- Comments: None.