|From:||Christophe De Wagter|
|Subject:||Re: [Paparazzi-devel] Delay of GPS Data|
|Date:||Mon, 3 Sep 2012 10:27:52 +0200|
Some filters in paparazzi can compensate for this but the DCM filter does not.
For the bungee launch the problem is not the GPS delay but the total lack of forward acceleration compensation.
i read joust a dissertation in witch a figure was shown that there is a delay of 600ms between the GPS data (speed over ground and position) to the IMU data.
Since in the DCM we use the speed information to correct attitude information this may bee a source of errors.
Has someone made a experiment in this filed? Is this delay corrected the the paparazzi data fusion filters?
Perhaps this is also a problem for bungee take off?
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