TY - GEN
T1 - Statistical analysis of a generalized compound eye detector array
AU - Liu, Zhi
AU - Nehorai, Arye
AU - Paldi, Eytan
PY - 2005
Y1 - 2005
N2 - We consider a novel detector array for detecting and localizing particle emitting sources. The array configuration generalizes the biological compound eye: it consists of multiple "eyelets," each having a conical module with a lens on top and a subarray inside containing multiple small particle detectors; compared with the compound eye, it is spherically shaped and typically has more detectors in each eyelet. The detectors can count particles such as photons (e.g. visible light, γ or X rays), protons, neutrons, α particles or electrons. We analyze statistical the performance of the array by computing Cramér-Rao bounds on the errors in estimating the source direction. We use the results to quantitatively compare the performance of the proposed array with that of the biological compound eye. Numerical examples illustrate the lower bound of the performance through the meansquare angular error (MSAE) bound, as a function of the array configuration variables. Potential applications include artificial vision, astronomy, and security.
AB - We consider a novel detector array for detecting and localizing particle emitting sources. The array configuration generalizes the biological compound eye: it consists of multiple "eyelets," each having a conical module with a lens on top and a subarray inside containing multiple small particle detectors; compared with the compound eye, it is spherically shaped and typically has more detectors in each eyelet. The detectors can count particles such as photons (e.g. visible light, γ or X rays), protons, neutrons, α particles or electrons. We analyze statistical the performance of the array by computing Cramér-Rao bounds on the errors in estimating the source direction. We use the results to quantitatively compare the performance of the proposed array with that of the biological compound eye. Numerical examples illustrate the lower bound of the performance through the meansquare angular error (MSAE) bound, as a function of the array configuration variables. Potential applications include artificial vision, astronomy, and security.
UR - http://www.scopus.com/inward/record.url?scp=33748537086&partnerID=8YFLogxK
U2 - 10.1109/ICSENS.2005.1597762
DO - 10.1109/ICSENS.2005.1597762
M3 - Conference contribution
AN - SCOPUS:33748537086
SN - 0780390563
SN - 9780780390560
T3 - Proceedings of IEEE Sensors
SP - 568
EP - 571
BT - Proceedings of the Fourth IEEE Conference on Sensors 2005
T2 - Fourth IEEE Conference on Sensors 2005
Y2 - 31 October 2005 through 3 November 2005
ER -