Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
A demonstration that, if the central frequencies of the swept radiation are above the threshold of the detector (i.e., the center frequencies are removed), the FFT is only performed on the frequencies well below and above the center, as can be seen in the figure. This FFT of the remaining two peaks, if their width is sufficiently small, produces a sinusoidal like pattern.
