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Re: [Paparazzi-devel] Delay of GPS Data

From: Christophe De Wagter
Subject: Re: [Paparazzi-devel] Delay of GPS Data
Date: Mon, 3 Sep 2012 10:27:52 +0200

Dear Heinrich,

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.


On Aug 22, 2012 10:20 AM, "Prof. Dr.-Ing. Heinrich Warmers" <address@hidden> wrote:
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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