Title :
Array robustness to sensor failure
Author :
Alexiou, A. ; Manikas, A.
Author_Institution :
Dept. of Electr. & Electron. Eng., Imperial Coll. of Sci., Technol. & Med., London, UK
Abstract :
The presence of uncertainties in the array response results in a performance degradation often greater than the application requirements can afford. Although various attempts have been made to measure the effect of uncertainties on direction finding algorithm performance, the impact of sensor response uncertainties on the ultimate array DF capabilities has not been considered thoroughly. In this paper, the sensitivity of an array´s DF capabilities to sensor response errors is formulated. Robustness and reliability measures are proposed, which can be used as tools for the evaluation of each sensor´s importance within the array geometry and as criteria for the comparison of a number of array geometries
Keywords :
array signal processing; radio direction-finding; reliability; array geometries; array robustness; direction finding algorithm; performance degradation; reliability; sensitivity; sensor failure; sensor response uncertainties; Array signal processing; Biomedical signal processing; Degradation; Educational institutions; Geometry; Robustness; Sensor arrays; Sensor phenomena and characterization; Uncertainty; Wireless sensor networks;
Conference_Titel :
Phased Array Systems and Technology, 2000. Proceedings. 2000 IEEE International Conference on
Conference_Location :
Dana Point, CA
Print_ISBN :
0-7803-6345-0
DOI :
10.1109/PAST.2000.858935
