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Academic Press Library in Signal Processing by Rama Chellappa, Sergios Theodoridis

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Chapter 10

Array Signal Processing: Overview of the Included Chapters

Mats Viberg,    Department of Signals and Systems, Chalmers University of Technology, Göteborg, Sweden, viberg@chalmers.se

3.10.1 Some history

The first Radio Direction Finding system was patented in the early 20th century [1]. The idea was to compare the signal strength from a direction-sensitive antenna when it was “steered” in different directions. The main application of the technology was maritime and aircraft navigation, but being able to localize incoming signal energy also found other civilian and military uses. It was soon realized that the performance could be significantly enhanced by employing an array of spatially separated antennas. The outputs of the antennas were ...

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