1 / 5

ICU-AVM/CFM/.. performance

ICU-AVM/CFM/.. performance. Presentation for HIFI Science Verification Review Groningen, April 20, 2006. ICU - hardware. No Flight Model tested so far at ILT level Operational significant differences with flight hardware: Only one ICU in box (no redundant ICU)

zamir
Download Presentation

ICU-AVM/CFM/.. performance

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. ICU-AVM/CFM/.. performance Presentation for HIFI Science Verification Review Groningen, April 20, 2006

  2. ICU - hardware • No Flight Model tested so far at ILT level • Operational significant differences with flight hardware: • Only one ICU in box (no redundant ICU) • ICU not (fully) capable of providing FCU power • In some cases smaller FIFOs for spectrometer interfaces • Different memory sizes • Boot firmware updated to version compatible with baseline for flight HIFI SVR Groningen 20-4-2006 - ICU-AVM/CFM/.. performance

  3. ICU – software • Version 3 denotes flight software • Subversion 3.5 now being used for ILT • Major functions still not developed: • Most chopping spectroscopy modes • OB Software problems delayed DM testing by several weeks • Many OBS functions cannot be tested fully before delivery: • Developers lack realistic simulators • More delays expected when OBS bugs block testing • OBS consolidation effort has improved bug fix turnaround significantly with respect to DM HIFI SVR Groningen 20-4-2006 - ICU-AVM/CFM/.. performance

  4. ICU – ILT results so far • ICU & OBS capable of supporting currently foreseen AOTs – but not yet demonstrated • Tuning of total receiver conceptually OK: • Tuning of individual subsystems tested with minor bugs • No end-to-end tune yet – cannot be done realistically with simulators • (Hardware) data rate limitations confine the AOT design, e.g.: • Maximum one (pair of) WBS readout per second • Maximum one full spectrometer set readout per four seconds HIFI SVR Groningen 20-4-2006 - ICU-AVM/CFM/.. performance

  5. ICU – limitations of ILT test setup • Timing of command issuing by CDMS cannot be simulated exactly • OBS management procedures not yet fixed - no tests ?? HIFI SVR Groningen 20-4-2006 - ICU-AVM/CFM/.. performance

More Related