Mr. Nitesh Thapa Profile

Nitesh Thapa

at Space Applications Ctr

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Publications (6)

SPIE Journal Paper | 28 February 2023

Comprehensive framework for optimization of overlapping pixels in optically butted focal planes

Ajay Kumar Krishnakumar, Nitesh Thapa, B. Narasiha Sharma, Arti Sarkar

OE, Vol. 62, Issue 02, 023103, (February 2023) https://doi.org/10.1117/12.10.1117/1.OE.62.2.023103

KEYWORDS: Signal to noise ratio, Modulation transfer functions, Vignetting, Design and modelling, Mirrors, Image segmentation, Reflection, Optical alignment, Optical engineering, Image quality

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SPIE Journal Paper | 29 September 2022

Simulation study on inclined orbit constellation of high-resolution electrooptical sensors for enhanced imaging efficiency in region of interest

Nitesh Thapa, Ajay Kumar Krishnakumar, Narasiha Sharma, Arti Sarkar, Somya Sarkar

JARS, Vol. 16, Issue 03, 037503, (September 2022) https://doi.org/10.1117/12.10.1117/1.JRS.16.037503

KEYWORDS: Sensors, Satellites, Electro optics, Electro optical sensors, Optical sensors, Mathematical modeling, Sun, Remote sensing, Image sensors, Electro optical modeling

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SPIE Journal Paper | 7 August 2018

Development of method for active alignment of multiple time delay and integration detectors in the optically butted focal plane assembly of high-resolution spaceborne imaging systems

Arti Sarkar, B. Narasiha Sharma , Manish Saxena, Nitesh Thapa, Anand Kumar, Himanshu Dave, Somya Sarkar

JARS, Vol. 12, Issue 03, 034003, (August 2018) https://doi.org/10.1117/12.10.1117/1.JRS.12.034003

KEYWORDS: Sensors, Staring arrays, Imaging systems, Modulation transfer functions, Clocks, Optical alignment, Light emitting diodes, Target detection, Electronics, Image processing

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Proceedings Article | 20 July 2018 Paper

PARAS-2 precision radial velocimeter: optical and mechanical design of a fiber-fed high resolution spectrograph under vacuum and temperature control

Abhijit Chakraborty, Nitesh Thapa, Kapil Kumar, Prasad J. S. S. Neelam, Rishikesh Sharma, Arpita Roy

Proceedings Volume 10702, 107026G (2018) https://doi.org/10.1117/12.2313055

KEYWORDS: Spectrographs, Optical fibers, Telescopes, Stars, Mirrors, Charge-coupled devices, Glasses

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Proceedings Article | 2 May 2016 Paper

Electrical coupling in multi-array charge coupled devices

Parul Singh, Vishal Sakarvadiya, Neeraj Dubey, Shweta Kirkire, Nitesh Thapa, Arup Banerjee

Proceedings Volume 9881, 988112 (2016) https://doi.org/10.1117/12.2227974

KEYWORDS: Charge-coupled devices, Silicon, Sensors, CCD image sensors, Clocks, Video, Target detection, Remote sensing, Optical imaging, Image sensors, Amplifiers, Optical amplifiers, Resistors, Interfaces, Reflection

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Proceedings Article | 30 April 2016 Paper

Enhanced 630nm equatorial airglow emission observed by Limb Viewing Hyper Spectral Imager (LiVHySI) onboard YOUTHSAT-1

R. S. Bisht, N. Thapa, P. Babu

Proceedings Volume 9880, 98801E (2016) https://doi.org/10.1117/12.2223567

KEYWORDS: Airglow, Atmospheric modeling, Cameras, Imaging systems, Thermosphere, Earth's atmosphere, Magnetism, Oxygen, Satellites, Image processing

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Showing 5 of 6 publications

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