A system for providing near-instantaneous determination of the azimuthal angle of arrival of a received signal has been designed and fabricated at L band. Direction is determined by phase measurement of the outputs of a multimode antenna, which has no moving parts. Effects of multipath interference are reduced to a minimum through a combination of signal processing techniques. The position of the transmitting source is presented on a PPI display.
Omnidirectional Instantaneous Direction Finding System
IEEE Transactions on Aerospace and Electronic Systems ; AES-3 , 2 ; 250-256
1967-03-01
4065894 byte
Article (Journal)
Electronic Resource
English
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