Mr. Javad Haghshenas Profile

Javad Haghshenas

Optical Engineer at Satellite Systems Research Institute

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Publications (11)

Proceedings Article | 2 November 2022 Presentation + Paper

Pre-launch geometric calibration methodology of a high-resolution push-broom payload

R. Sharifi, J. Haghshenas

Proceedings Volume 12271, 122710L (2022) https://doi.org/10.1117/12.2632579

KEYWORDS: Distortion, Calibration, Sensors, Cameras, Mathematical modeling, Imaging systems, Remote sensing, Prisms, Satellites, Satellite imaging

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Proceedings Article | 28 October 2022 Poster + Paper

Step-by-step alignment methodology for high resolution payloads using theodolite

R. Sharifi Hafshejani, J. Haghshenas

Proceedings Volume 12264, 122640J (2022) https://doi.org/10.1117/12.2633931

KEYWORDS: Satellites, Imaging systems, Cameras, Satellite imaging, Optical alignment, Star sensors, Optical components, Sensors, Data acquisition, Remote sensing

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Proceedings Article | 10 October 2019 Paper

Surveying the effect of thermal and mechanical loads on star sensor baffle and its performance

Javad Haghshenas, Behzad Mohasel Afshari

Proceedings Volume 11151, 111512F (2019) https://doi.org/10.1117/12.2535474

KEYWORDS: Satellites, Thermal effects, Star sensors, Stray light, Heat flux, Cameras, Finite element methods, Space operations, Aluminum

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Proceedings Article | 29 September 2017 Paper

Modular design of electrical power subsystem for a remote sensing satellite

Ehsan Kosari, Sajjad Ghazanfarinia, Mahboobeh Hosseingholi, Javad Haghshenas

Proceedings Volume 10423, 1042328 (2017) https://doi.org/10.1117/12.2280023

KEYWORDS: Satellites, Remote sensing, Power supplies, MATLAB, Sensors

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Power Supply is one of the most important subjects in Remote Sensing satellite. Having an appropriate and adequate power resources, A Remote Sensing satellite may utilize more complex Payloads and also make them more operable in orbit and mission timeline. This paper is deals with a design of electrical power supply subsystem (EPS) of a hypothetical satellite with remote sensing mission in Low Earth Orbits, without any restriction on the type and number of Payloads and only assuming a constraint on the total power consumption of them. EPS design is in a way that can supply the platform consumption to support Mission and Payload(s) requirements beside the power consumption of the payload(s). The design is also modular, as it can be used not only for the hypothetical system, but also for the other systems with similar architecture and even more needs on power and differences in some specifications. Therefore, a modularity scope is assumed in design of this subsystem, in order to support the satellite in the circular orbits with altitude of 500 to 700 km and inclination of 98 degrees, a sun-synchronous orbit, where one can say the design is applicable to a large range of remote sensing satellites. Design process will be started by high level and system requirements analysis, continued by choosing the best approach for design and implementation based on system specification and mission. After EPS sizing, the specifications of elements are defined to get the performance needed during operation phases; the blocks and sub-blocks are introduced and details of their design and performance analysis are presented; and the modularity is verified using calculations for the confined area based on design parameters and evaluated by STK software analysis results. All of the process is coded in MATLAB software and comprehensive graphs are generated to demonstrate the capabilities and performance. The code and graphs are developed in such a way to completely review the design procedure and system efficiency in worst case of power consumption scenario at the beginning and end of satellite life

Proceedings Article | 29 September 2017 Paper

Development of a computationally efficient algorithm for attitude estimation of a remote sensing satellite

Amir Labibian, Amir Hossein Bahrami, Javad Haghshenas

Proceedings Volume 10423, 1042326 (2017) https://doi.org/10.1117/12.2280005

KEYWORDS: Sensors, Satellites, Remote sensing, Gyroscopes, Calibration, Magnetic sensors, Algorithm development, Data processing, Magnetometers, Sun

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Proceedings Article | 29 September 2017 Presentation + Paper

Onboard TDI stage estimation and calibration using SNR analysis

Javad Haghshenas

Proceedings Volume 10423, 104231U (2017) https://doi.org/10.1117/12.2279933

KEYWORDS: Signal to noise ratio, Sensors, Satellites, Cameras, Modulation transfer functions, Image quality, Charge-coupled devices, Satellite imaging, Calibration, Earth's atmosphere

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Proceedings Article | 30 September 2015 Paper

Effects of temperature variations on the performance of a space imaging system baffle

Javad Haghshenas, Behzad Mohasel Afshari

Proceedings Volume 9626, 96263B (2015) https://doi.org/10.1117/12.2191496

KEYWORDS: Satellites, Stray light, Heat flux, Finite element methods, Sun, Star sensors, Imaging systems, Stars, Titanium, Ray tracing

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Proceedings Article | 23 September 2015 Paper

Maximum allowable low-frequency platform vibrations in high resolution satellite missions: challenges and look-up figures

Javad Haghshenas

Proceedings Volume 9626, 96262R (2015) https://doi.org/10.1117/12.2191109

KEYWORDS: Modulation transfer functions, Spatial frequencies, Satellites, Statistical analysis, Image quality, Cameras, Remote sensing, Sensors, Electro optics, Satellite imaging

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Proceedings Article | 23 September 2015 Paper

Effects of satellite platform’s vibrations on the image quality of a remote sensing payload: system level design and challenges

Javad Haghshenas

Proceedings Volume 9626, 96262P (2015) https://doi.org/10.1117/12.2191106

KEYWORDS: Modulation transfer functions, Satellites, Image quality, Satellite imaging, Spatial frequencies, Sensors, Image resolution, Image sensors, Imaging systems, Remote sensing

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Proceedings Article | 5 December 2014 Paper

Electro optical design for a space camera based on MODTRAN data analysis

Javad Haghshenas

Proceedings Volume 9264, 92640H (2014) https://doi.org/10.1117/12.2069469

KEYWORDS: Sensors, Cameras, Modulation transfer functions, Atmospheric modeling, Sun, Signal detection, Electro optical design, Earth's atmosphere, Charge-coupled devices, Optical design

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Proceedings Article | 19 November 2014 Paper

A theoretical method for vanes profile design in star sensor baffle

Javad Haghshenas, Ehsan Johari

Proceedings Volume 9264, 92641R (2014) https://doi.org/10.1117/12.2069467

KEYWORDS: Stray light, Star sensors, Signal attenuation, Sun, Sensors, Ray tracing, Monte Carlo methods, Stars, Testing and analysis, Optical components

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Showing 5 of 11 publications

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