DocumentCode :
2500668
Title :
AESA diagnostics in operational environments [antenna array]
Author :
Hull, W.P.
Author_Institution :
Texas Instrum. Inc., McKinney, TX, USA
fYear :
1989
fDate :
29-30 Mar 1989
Firstpage :
107
Lastpage :
112
Abstract :
The author discusses some possible solutions to ASEA (active electronically scanned array) diagnostics in the operational environment using built-in testing (BIT), which can play a key role in reducing life-cycle cost if accurately implemented. He notes that it is highly desirable to detect and correct in the operational environment all degradation that impairs mission performance. This degradation must be detected with low false alarm rate and the appropriate action initiated consistent with low life-cycle cost. Mutual coupling is considered as a BIT signal injection method and is shown to have potential. However, the limits of the diagnostic capability using this method clearly depend on its stability and on the level of multipath for a specific application. BIT using mutual coupling may need to be supplemented on the ground by an externally mounted passive antenna that interfaces with onboard avionics
Keywords :
active antennas; antenna phased arrays; testing; AESA diagnostics; BIT; active electronically scanned array; antenna array; built-in testing; low false alarm rate; low life-cycle cost; mutual coupling; operational environments; phased arrays; signal injection method; Antenna arrays; Beam steering; Calibration; Costs; Degradation; Frequency; Instruments; Phase estimation; Phased arrays; Testing;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Radar Conference, 1989., Proceedings of the 1989 IEEE National
Conference_Location :
Dallas, TX
Type :
conf
DOI :
10.1109/NRC.1989.47625
Filename :
47625
Link To Document :
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