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[[File:NSGA Galeta Island Site.jpg|thumb|Direction-finding system [[Galeta Island (Panama)|Galeta Island]], [[Panama]] ]]
The '''Wullenweber''' (the original name introduced by Dr. Hans Rindfleisch was Wullenwe'''v'''er) is a type of '''Circularly Disposed Antenna Array (CDAA)''' sometimes referred to as a '''Circularly Disposed Dipole Array (CDDA)'''. It is a large circular [[antenna (radio)|antenna]] array used for [[radio direction finding]]. It was used by the military to [[Triangulation|triangulate]] radio signals for radio navigation, intelligence gathering and search and rescue. Because its huge circular reflecting screen looks like a circular fence, the antenna has been colloquially referred to as the ''elephant cage.'' The term ''wullenwever'' was the World War II German [[Code name|cover term]] used to identify their secret CDAA research and development program; its name is unrelated to any person involved in the program.
Many such CDAA systems used by many nations, such as the former [[Soviet Union]], the [[United Kingdom]], and the [[United States]], are still referred to as Wullenwebers.
==History==
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