Fundamental limits in resolution of double star targets

Details Fundamental limits in resolution of double star targets Fundamental limits in resolution of double star targets

Sep 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989spie.1111..352n&link_type=abstract

IN: Acquisition, tracking, and pointing III; Proceedings of the Meeting, Orlando, FL, Mar. 27-29, 1989 (A90-39001 17-17). Bellin

Computer Science

Double Stars, Image Processing, Image Resolution, Pattern Recognition, Star Trackers, Angular Resolution, Background Noise, Point Sources, Shot Noise

Scientific paper

Estimation of positions, amplitudes, and the relative phase of double star targets is considered for an imaging system when the image pattern is registered by an incoherent array of photodetectors. An analytical framework is developed to establish the fundamental limits on the resolution of an imaging system and to obtain a quantitative understanding of the dependence of the accuracy of estimation upon the separation between targets and on the number of photons available. The additional number of signal photons required to obtain a desired accuracy for any parameter when the number of unknown parameters increases is computed and discussed for selected cases. Targets representing sources which can be either mutually coherent or incoherent are considered.

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