lasseb
Continuing, for simplicity, with the stable platform INS, if in ALIGN the levelling is carried out without error and there is no gravity element being sensed by the N/S and E/W accelerometers, why would the platform oscillate?
I think you are saying that if there is a leveling error and the platform is oscillating then the response is memorised, carried forward into the NAV regime and removed from all subsequent navigation computations. Do I read you correctly?
Edit. I think I see that you are assuming a rough initial alignment leading to error which is then computed out or, in older systems, fed back to the platform control. Am I getting warmer?
Last edited by Dick Whittingham; 6th August 2012 at 13:54.