Editing Golomb ruler (section)

===Radio frequency selection===
Golomb rulers are used in the selection of radio frequencies to reduce the effects of [[intermodulation interference]] with both [[Earth|terrestrial]]<ref name="titlestats.Intermodulation Interference in Radio Systems">{{cite journal |url=http://www.alcatel-lucent.com/bstj/vol32-1953/articles/bstj32-1-63.pdf |archive-url=https://web.archive.org/web/20110707104054/http://www.alcatel-lucent.com/bstj/vol32-1953/articles/bstj32-1-63.pdf |archive-date=2011-07-07 |url-status=live |title=Intermodulation Interference in Radio Systems |year=1953 |access-date=2011-03-14 |format=excerpt |doi=10.1002/j.1538-7305.1953.tb01422.x |last1=Babcock |first1=Wallace C. |journal=Bell System Technical Journal |volume=32 |pages=63–73 }}</ref> and [[outer space|extraterrestrial]]<ref name="titlestats.Carrier frequency assignment for nonlinear repeaters">{{cite journal |title=Carrier frequency assignment for nonlinear repeaters |journal=Comsat Technical Review |volume=7|pages=227 |type=abstract |bibcode=1977COMTR...7..227F |last1=Fang |first1=R. J. F. |last2=Sandrin |first2=W. A. |year=1977}}</ref> applications.