By Jens Eickhoff
This e-book for the 1st time presents a constant presentation at the software of useful method simulation in spacecraft improvement - masking the whole technique from spacecraft layout to ultimate verification. The publication treats the varied simulator forms and their software within the next steps of a spacecraft engineering approach. moreover it covers the themes of spacecraft apparatus modeling for simulation, simulator numerics, software program layout and software program engineering know-how. modern examine themes in either simulation expertise and functions are dealt with as well.
Instructive examples, from specialist simulator functions in house in addition to examples from a complicated educational small satellite tv for pc software, deal with the topic in response to the most recent country of analysis and expertise. large literature references around off the documentation.
The e-book is both appropriate for college students in addition to for specialists of many engineering disciplines in undefined. it truly is compatible for advent and reference in sleek simulation established method engineering.
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Example text
Non-technical tasks like risk analyses and report writing are also proceeded in the frame of these time slots. The participating engineering disciplines typically are: System RF communication Payload Power supply Operations and on-board software Mechanical configuration / structure Orbit analysis Thermal design Electrical system and on-board data handling Scheduling and ground operations AOCS Cost and risk analysis Propulsion subsystem + SDO sessions moderator Essential for this approach is the coordinated work process concerning development logic and sequence and including systematic documentation of all evaluated system design alternatives and mission concepts which came up throughout such a process.
This means, hardware (HW) / software (SW) integration has to be completed for this step. To verify the proper HW / SW integration, already a pre-verified control software must be available. In spacecraft engineering this is on-board software. g. for attitude control - reference data must be available. The latter come from an algorithm verification campaign, which itself has to be already completed at that point. 1), as a semi-two layer problem. 4 are not addressed. These interrelations however, are essential for understanding which participant in a project at which time is dependent on which input results.
The connections between non-OBC equipment models also have to be reflected. g. 14 for the cross-linking between all types of equipment models. Today, such "Software in the loop" simulations enable the running of a complete functional satellite simulation including on-board computer model and spacecraft dynamics propagator on a single powerful PC or laptop. However, for this system simulation the SVF has to be connected to an adequate control console. This results from the on-board software being commanded in the simulated system like in the real spacecraft, for example the real satellite from the ground.