Cal/Val activities for DubaiSat-2 performance assessment

A. Bushahab; S. Al-Mansoori; K. Al-Suwaidi; Hessa Al Matroushi; E. Al-Tunaiji; Meera Al Shamsi

doi:10.1117/12.2067593

22 October 2014 Cal/Val activities for DubaiSat-2 performance assessment

A. Bushahab, S. Al-Mansoori, K. Al-Suwaidi, Hessa Al Matroushi, E. Al-Tunaiji, Meera Al Shamsi

Proceedings Volume 9241, Sensors, Systems, and Next-Generation Satellites XVIII; 924119 (2014) https://doi.org/10.1117/12.2067593
Event: SPIE Remote Sensing, 2014, Amsterdam, Netherlands

Abstract

Emirates Institution for Advanced Science and Technology (EIAST) was established by the Dubai Government in 2006. After three years of working together with Satrec Initiative (South Korea), EIAST was able to launch DubaiSat-1 on the 29th of July 2009. Building on the success of DubaiSat-1 and the roll out of the knowledge transfer program, UAE engineers were involved in almost 70% of the total build and design of DubaiSat-2. Targeting the commercial market, DubaiSat-2 was launched on the 21st of November 2013 for capturing 1-meter resolution images. The 1st Cal/Val phase was the most critical phase in the satellite life-time, where most of the initial measurements took place. This phase extended over the period of 25/11/2013 till 12/12/2013. Moreover, this phase included most of the relative calibration tasks, color balancing and band matching. 2nd Cal/Val phase included most of the debugging and the pointing accuracy calibration tests. This phase extended over the period of 11/02/2014 till 09/03/2014. This phase emphasized on the calibration of the pointing accuracy. The 3rd Cal/Val phase included fine tuning for the Gyro system to further increase the stability of the satellite and thus improve the pointing accuracy. Moreover, new techniques were implemented to the Pan-Sharpening and to the MTF compensation procedures to enhance the final product. This phase extended over the period of 04/05/2014 till 21/05/2014.

Citation Download Citation

A. Bushahab, S. Al-Mansoori, K. Al-Suwaidi, Hessa Al Matroushi, E. Al-Tunaiji, and Meera Al Shamsi "Cal/Val activities for DubaiSat-2 performance assessment", Proc. SPIE 9241, Sensors, Systems, and Next-Generation Satellites XVIII, 924119 (22 October 2014); https://doi.org/10.1117/12.2067593

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KEYWORDS

Modulation transfer functions

Satellites

Signal to noise ratio

Sensors

Staring arrays

Calibration

Nonuniformity corrections

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