I've had a fair bit of success putting altimeters in nosecones. In those cases it was a Featherweight Raven with the static ports near the base of the nosecone. Now I would like to move the altimeter farther forward, as far forward as it will go into the tip of the nosecone. In this scenario the static port(s) will be angled into the relative wind causing ram air to increase the pressure inside the av-bay as velocity increases.
In my limited understanding of how a Kalman filter works, would it still be able to prevent untimely deployment if the accelerometer is showing increasing velocity but the barometric sensor is showing increasing pressure (descent) during the boost phase? As I understand it, this situation would not agree with the predictive model so the baro sensor would be ignored until everything made sense. Would my assumption hold true if the velocity during boost reaches Mach 3+ and possibly exceeds the high pressure limit on the baro sensor?
I have read David Schultz' paper here https://home.earthlink.net/~david.schultz/rnd/2004/KalmanApogeeII.pdf paying attention to the Error Summary section. It doesn't exactly address sensor disagreement at opposite extremes as would be in this case.
The candidates for altimeters in this situation are a Telemetrum, AIM XTRA, or a Raven 3/Beeline GPS, in that order. There are many other great candidates but they wont fit.
This subject has been discussed quite a bit here on TRF and elsewhere, but I would like to continue further since none of the other discussions deal with this particular placement or this velocity. I'd also feel much more comfortable about this decision with some help and input from the world at large here on TRF.
Thanks
In my limited understanding of how a Kalman filter works, would it still be able to prevent untimely deployment if the accelerometer is showing increasing velocity but the barometric sensor is showing increasing pressure (descent) during the boost phase? As I understand it, this situation would not agree with the predictive model so the baro sensor would be ignored until everything made sense. Would my assumption hold true if the velocity during boost reaches Mach 3+ and possibly exceeds the high pressure limit on the baro sensor?
I have read David Schultz' paper here https://home.earthlink.net/~david.schultz/rnd/2004/KalmanApogeeII.pdf paying attention to the Error Summary section. It doesn't exactly address sensor disagreement at opposite extremes as would be in this case.
The candidates for altimeters in this situation are a Telemetrum, AIM XTRA, or a Raven 3/Beeline GPS, in that order. There are many other great candidates but they wont fit.
This subject has been discussed quite a bit here on TRF and elsewhere, but I would like to continue further since none of the other discussions deal with this particular placement or this velocity. I'd also feel much more comfortable about this decision with some help and input from the world at large here on TRF.
Thanks