Creation of Imu geometric model in Matlab In order to generate Synthetic data(Accelerometer and Gyroscope) 6DOF
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I am looking to create a geometric model(using the simulink blocks) of an IMU sensor that is available in Mathworks 'Sensor Fusion Toolbox'. I have to generate synthetic data of the 3-axis accelerometer,3-axis gyroscope(6DOF) in order to calculate the quaternions(to calculate the orientation) using an sensor fusion algorithm(Madgwick Filter or any similar one). I want to do this in Simulink without using real hardware sensors.I am stuck at this point how to go forward.
Looking for any suggestions or references of similar models.
Thanks in advance.
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Brian Fanous
am 25 Aug. 2022
You can use waypointTrajectory and imuSensor to accomplish this in MATLAB. There is an equivalent Simulink block for imuSensor but you'd have to put the waypointTrajectory code in a MATLAB Function block to handle the trajectory generation portion:
% Simulink IMU data during a trajectory between two random orientations
wp = waypointTrajectory('Waypoints', zeros(2,3), 'Orientation', randrot(2,1), 'TimeOfArrival', [0 1].');
sampleRate = 10;
[~, orient, ~, acceleration, angvel] = lookupPose(wp, 0:(1/sampleRate):1);
imu = imuSensor('SampleRate', sampleRate);
[acc, gyro] = imu(acceleration, angvel, orient);
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