Use flow rates instead of integrals in backend. This allows us to delay
the data to the mitpoint integration time and simplifies the code in
general.
Gyro compensation can still be done in EKF2 if needed, but the
flow module normally already appends the correct gyro data to the flow
message.
* created a Performance Model for fixed wing vehicle
- added compensation for maximum climbrate, minimum sinkrate, minimum airspeed and trim airspeed based on weight ratio and air density
- added atmosphere lib to standard atmosphere calculations
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Signed-off-by: RomanBapst <bapstroman@gmail.com>
Co-authored-by: Thomas Stastny <thomas.stastny@auterion.com>
- in theory these are helpful to ensure EKF2_HGT_MODE configuration is
consistent with the relevant aid source (GPS, baro, etc), but it can
be a little awkward with users having to fight manual parameter
changes in the right order
- add functionality to specify world name for simulation in case name
- add test for triggering an airspeed invalidation in case of pitot blockage
- add test for high wind (ramped up wind over short period) to NOT invalidate airspeed in this case
Signed-off-by: Silvan Fuhrer <silvan@auterion.com>
Increase wind process noise default (ASPD_WIND_NSD) and gate
(ASPD_TAS_GATE) to be able to catch rapid wind increases with
the internal wind estimator of the airspeed validator.
Signed-off-by: Silvan Fuhrer <silvan@auterion.com>
Trust the beta innovations more compated to the TAS innovations.
That should help with detecting real airspeed failures even with
a dynamic wind estimate (as long as vehicle doesn't fly straight)
Signed-off-by: Silvan Fuhrer <silvan@auterion.com>
Increasing the wind process noise results in a more dynamic
wind estimation, which is capable of catching fast-varying
winds. As wind is used in the lateral guidance it's important
that we don't filter it too much.
Furher the gate of the airspeed fusion is increased, to
reduce the likelihood of airspeed fusion stopping due to
dynamic wind conditions. The airspeed is validated in
the airspeed validator (EKF consumes the validated one).
Signed-off-by: Silvan Fuhrer <silvan@auterion.com>
Reduces flash usage by ~16KB.
- compress formats at build-time into a single string with all formats
- then at runtime iteratively decompress using
https://github.com/atomicobject/heatshrink
- if not in air the accel noise is doubled
- if landed don't init unless GPS velocity is non-negligible
- when inactive continue seeding with EKF gyro bias
- reset yaw estimator if GPS fusion is stopped
GuillaumeLaine