ZORO
ZORO
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ZORO's Discussions

Cancel Acceleration due to motion??????????

Started this discussion. Last reply by Chris Anderson Nov 14, 2009. 4 Replies

hi,,I have IMU consists of (3-accelometre,3-gyro and 3-megnatometre) and I need to find out the pitch angle for a UAV so if I use the X-accelometre as a measurment,so I get 2 components the first one…Continue

Accelometre Problem

Started this discussion. Last reply by wayne garris Nov 13, 2009. 1 Reply

my question is HOW could I subtract the acceleration component due to motion from gravity component which is used for obtaining Pitch angle??If the IMU is fixed ,static( not moving ) and i need to…Continue

whitch accelometre should we take to find out PITCH angle for UAV??

Started this discussion. Last reply by ZORO Nov 11, 2009. 2 Replies

Hello,,Iam new in this forum and i have a problem with IMU for generating pitch angle ,I am using the Y-Gyro for short range BUT i must make another sensor (accelometre ) along with Y-Gyro for long…Continue

 

ZORO's Page

Latest Activity

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ZORO replied to Ian Painter's discussion '40 Mile range!?'
Hi, Alex  Do you use XTend 900 without any problem ?? what is the accessories for example the Anttenas to get 40 kilometers ?? if u have any pictures that will be very helpful..... thanks in advance
Oct 30, 2011
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Doug Weibel replied to ZORO's discussion 'Centriptual Acceleration'
Hello Ziad, Yes you can use a pitot tube, or alternately gps.
Nov 20, 2009
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Chris Anderson replied to ZORO's discussion 'Cancel Acceleration due to motion??????????'
Ziad, people will be more likely to help you if you use fewer question marks. It comes across as shouting.
Nov 14, 2009
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Andrus Kangro replied to ZORO's discussion 'Cancel Acceleration due to motion??????????'
Hi, as I wrote, you cannot do just with accelerometer, you also need to use input from pitch gyro in your filter. Also, in real life, your pitch depends also on roll and yaw, so you need to use Direction Cosine Matrix to find out, how your plane is…
Nov 14, 2009
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ZORO replied to ZORO's discussion 'Cancel Acceleration due to motion??????????'
Hello Andrus , thanks for your replay, I made Y-Rategyro as a process and accelometre as measurment to the pitch angle using Kalman filter and its working perfictly on the table,,but I still didnt build my UAV yet,,so if I make a control system on…
Nov 14, 2009
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Andrus Kangro replied to ZORO's discussion 'Cancel Acceleration due to motion??????????'
Hi, this is fundamental issue with IMU's. In short, you need to use gyros + accelerometer for this task and may also use magnetometer. You may want to consult direction cosine matrix documents found here, as this is what you eventually need to…
Nov 14, 2009
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Cancel Acceleration due to motion??????????

hi,,I have IMU consists of (3-accelometre,3-gyro and 3-megnatometre) and I need to find out the pitch angle for a UAV so if I use the X-accelometre as a measurment,so I get 2 components the first one is due to (gravity sense) which is desirable to measure the pitch angle ,and the second one is making my problem (not desirable now) which is due to motion along X-axis so please help me to fix this ..Thanks in advanceSee More
Discussion posted by ZORO Nov 14, 2009
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wayne garris replied to ZORO's discussion 'Accelometre Problem'
centripetal acceleration compensation for an example you can look at my code here google code
Nov 13, 2009
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Accelometre Problem

my question is HOW could I subtract the acceleration component due to motion from gravity component which is used for obtaining Pitch angle??If the IMU is fixed ,static( not moving ) and i need to find out the angles ,I have no problem for that but my point is the moving IMU.See More
Discussion posted by ZORO Nov 13, 2009
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ZORO replied to ZORO's discussion 'whitch accelometre should we take to find out PITCH angle for UAV??'
Chris Anderson, ofcourse there is no probelem with 6-DOF IMU ,,but my question is HOW could I subtract the acceleration component due to motion from gravity component which is used for obtaining Pitch angle?? If the IMU is fixed ,static( not moving…
Nov 11, 2009
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Chris Anderson replied to ZORO's discussion 'whitch accelometre should we take to find out PITCH angle for UAV??'
Ziad, I don't think we understand the question. What's wrong with just using a 6DoF IMU?
Nov 11, 2009
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whitch accelometre should we take to find out PITCH angle for UAV??

Hello,,Iam new in this forum and i have a problem with IMU for generating pitch angle ,I am using the Y-Gyro for short range BUT i must make another sensor (accelometre ) along with Y-Gyro for long range correction using adaptive filtring tecq- ,,which accelometre should i pick for this problem,,I am thinking of the X-accelometre but it will be effected by the UAV motion,,so iam thinking of using Z-accolmeter ??? so please help me on this and thanks in advanceSee More
Discussion posted by ZORO Nov 10, 2009
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ZORO replied to Chris Lane's discussion 'A little confused....'
Hello,,Iam new in this forum and i have a problem with IMU for generating pitch angle , I am using the Y-Gyro for short range BUT i must make another sensor (accelometre ) along with Y-Gyro for long range correction using adaptive filtring tecq-…
Nov 10, 2009
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ZORO replied to Sarel P. Wagner's discussion 'Open Source UAV Airframe'
Hello,,Iam new in this forum and i have a problem with IMU for generating pitch angle , I am using the Y-Gyro for short range BUT i must make another sensor (accelometre ) along with Y-Gyro for long range correction using adaptive filtring tecq-…
Nov 10, 2009

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