Performance Evaluation and Analysis of Very High-Resolution Satellite Telescopes | ||||
| The International Conference on Electrical Engineering | ||||
| Article 40, Volume 11, 11th International Conference on Electrical Engineering ICEENG 2018, April 2018, Page 1-13 PDF (588.63 K) | ||||
| Document Type: Original Article | ||||
| DOI: 10.21608/iceeng.2018.30173 | ||||
 View on SCiNiTO | ||||
| Authors | ||||
| Walid A. Attia1; Taher M. Bazan1; Fawzy Eltohamy1; Mahmoud Fathy2 | ||||
| 1Egyptian Armed Forces. | ||||
| 2Benha University. | ||||
| Abstract | ||||
| In this paper, a system performance evaluation of very high-resolution satellite telescopes is investigated. The proposed system is based on Korsch optical design and employing a time-delay and integration charge coupled device (TDI-CCD) detector to achieve a ground sampling distance (GSD) of 25 cm. The key performance metrics considered in this investigation are the absolute and differential signal-to-noise ratio (SNR) and the total modulation transfer function (MTF) of the system. The system MTF has been computed including diffraction, aberration, optical manufacturing, smear and detector as the main contributors for evaluation the MTF. The SNR has been analyzed at different target albedos, sun and sensor angles. In addition, the spatial resolution in terms of cut-off resolution for minimum and maximum illumination conditions is assessed. The analysis shows that the predicted ground resolutions for minimum and maximum illumination situations are 26.4 and 43 cm, respectively | ||||
| Keywords | ||||
| performance evaluation; modulation transfer function; signal-to-noise ratio | ||||
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