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[Paparazzi-devel] my LISA doesn't trace the course.

From: ????????
Subject: [Paparazzi-devel] my LISA doesn't trace the course.
Date: Sun, 12 Aug 2012 23:38:12 +0800

     My LISA/M2.0 can't trace the course very well since that I have upgraded the GPS's(ublox-5h) firmware from ver3.0 to ver5.0.I have setup the GPS step by step with WIKI's instruction for GPS's settings.
     It's path seems like something about outer control loop's oscillation.But it never happened before my GPS's firmware's upgrade.(And the PID's parameters are very same) Meanwhile I have found that the GPS's signal bars continuously change from green to gray or reverse.It's very strange about my GPS,isn't it?
     What causes the problem?And how can I fix it?Thank's for your help.
It's my "figure 8"
The GPS's signal bars change from green to gray or reverse continuously

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