Title :
Solar tracking: design and simulation (X-ray emission detection)
Author :
Greene, Michael ; Tan, Hong
Author_Institution :
Dept. of Electr. Eng., Auburn Univ., AL, USA
Abstract :
A solar fine tracking system has been designed and simulated for the pointing of a hard X-ray experiment (pinhole/occulter facility) to be flown on the Space Shuttle or a high altitude balloon. The system hardware consists of a uniform-diameter pinhole camera, photodetector, and sample/hold and analog-to-digital converting circuits. The high-precision algorithm is based on the numerically derived intensity distribution of the solar image. Simulation results show that the algorithm can estimate the absolute planar pointing angle to the Sun with the resolution of +or-0.001 arc seconds.<>
Keywords :
CCD image sensors; X-ray detection and measurement; computerised picture processing; tracking systems; A/D convertor; CCD pixel arrays; Sun; X-ray emission detection; design; photodetector; pinhole camera; sample and hold circuit; simulation; solar image; solar tracking system; Cameras; Circuit simulation; Hardware; Image converters; Photodetectors; Space shuttles; Sun; X-ray detection; X-ray detectors; X-ray imaging;
Conference_Titel :
System Theory, 1988., Proceedings of the Twentieth Southeastern Symposium on
Conference_Location :
Charlotte, NC, USA
Print_ISBN :
0-8186-0847-1
DOI :
10.1109/SSST.1988.17045
