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Systems Complexity In Conceiving An Optical Payload For Remote Sensing Spacecraft – A Case Study
Author(s) -
Avinash M,
Ravi Chandra Babu G,
Nagesh S. K
Publication year - 2019
Publication title -
incose international symposium
Language(s) - English
Resource type - Journals
ISSN - 2334-5837
DOI - 10.1002/j.2334-5837.2019.00671.x
Subject(s) - payload (computing) , spacecraft , process (computing) , systems engineering , realization (probability) , computer science , satellite , aerospace engineering , remote sensing , engineering , real time computing , computer network , network packet , statistics , mathematics , geology , operating system
Remote sensing satellites have become indispensable tool, offering various applications for the economic development of the country. There is an increasing demand for new generation of remote sensing satellites, which can offer better resolution with wider swath. Optical payloads for such an advanced satellite require bigger optics, tighter fabrication tolerances and better thermal management to give their best performance. It is advantageous to configure these payloads on a standard spacecraft bus. At the same time the standard bus imposes some limitations on the mechanical and electrical parameters of the payload like mass, volume, power, data rate etc., besides the harsh launch environment. Optical payload realization involves multi‐disciplinary teams working in geographically distributed places. Any variation in one parameter/process during the realization phase impacts the system performance and hence may lead to degradation of mission. In addition to this increase in demand for multiple satellites in short period of time, mandates sharing of manpower and facilities among multiple projects at each work centre. Therefore, systems engineering approach and project management tools have become crucial for realization of such a complex system. In this paper, authors have explained the process involved in evolving the Opto‐mechanical design of such a complex optical payload for a remote sensing satellite. It is intended to bring out system complexity involved and the system engineering concepts adapted in the process.