Deriving Primary Specifications of Optical Remote Sensing Satellite from user Requirements
Palani Murugan1, Nitu Pathak2

1Palani Murugan, Programme Management and Systems Group, U, R, Rao Satellite centre, Bangalore, India.
2Nitu Pathak, Programme Management and Systems Group, U, R, Rao Satellite centre, Bangalore, India.
Manuscript received on 02 June 2019 | Revised Manuscript received on 10 June 2019 | Manuscript published on 30 June 2019 | PP: 3295-3301 | Volume-8 Issue-8, June 2019 | Retrieval Number: H6956068819/19©BEIESP
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Abstract: Remote Sensing is a technique applied to collect information of targets including Earth by acquiring images in selected spectral bands. Satellites are used as remote sensing platforms as they provide numerous advantages like wide area imaging, systematic coverage etc. Low Earth Orbit (LEO) polar satellites are preferred for the remote sensing applications as they provide global coverage. The images acquired through satellite remote sensing are used for many applications such as cartography, agriculture, limnology, oceanography, environmental study, forestry, geology etc. Applications dictate primary specifications of observation instrument and satellite orbital parameters. This paper presents the steps involved in deriving primary specifications of imaging optical payloads and orbit parameters for systematic coverage from user requirements. Some of primary system specifications are such as camera focal length, field of view, aperture size, number of bands, band width, detector size, quantisation bits, altitude, revisit time etc. Primary system specification are derived from four different resolutions namely, temporal, spatial, radiometric and spectral resolution. These resolutions vary with the applications. These primary specifications help to derive the specifications of satellite subsystems like data handling system, power system, communication system, Attitude and Orbit Control System (AOCS), Structure, Thermal Control System (TCS) etc. A computer program was developed in MATLAB to generate different parameters based on user requirements. These parameters will be specifications for subsystem design. Few case studies have been carried out and results were analysed.
Keyword: Satellite, Remote sensing, Orbit, Altitude, Sensor, focal length.
Scope of the Article: Network Protocols & Wireless Networks.