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Questions tagged [matlab]

MATLAB is a high-level language and interactive programming environment for numerical computation and visualization developed by MathWorks.

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1answer
380 views

Pick and place robot [closed]

I have to simulate a pick and place robot (3 DOF). I tried with MATLAB. It should pick and place different objects according to their geometry. Where can I find similar m-codes and algorithms?
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1answer
736 views

simulation of robots

I am designing a new mechanism similar to robot arm. It would be a 6 or 7 axis with arms but not the same with traditional articulated arms. As a result, new DH matrix,and inverse kinematics involve. ...
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0answers
136 views

Use MATLAB Compiler SDK generated package in KUKA Sunrise.Workbench

The MATLAB Compiler SDK allows to create a wrapper for a MATLAB function which can be accessed by Java software. Based on my understanding, KUKA's Sunrise.Workbench IDE uses most of the standard Java ...
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1answer
249 views

How to import catia assembly to Matlab. Simmechanics

In catia .stl format is available only for part file not for assembly file. Please help how to import asembly in simmechanics .CATProduct to .stl Or Is there any other way to do?
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0answers
77 views

how to actuate pneumatic muscle by the signals received by emg sensors interfaced with raspberry pi?

My aim is to actuate a pneumatic muscle based on signals received by EMG sensors placed on the biceps. Is there any Matlab code which can process the received EMG signals and convert them into any ...
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1answer
1k views

Real-time GY-85 IMU sensor interfacing with Simulink

How do I read real time values from the GY-85 IMU sensor at Simulink connected via Arduino? Also, I intend to interact with the Virtual Reality environment at Simulink using this GY-85 IMU sensor. Is ...
4
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1answer
169 views

Calculating required torques for a given trajectory using Lagrange-Euler

I have a 2DOF robot with 2 revolute joints, as shown in the diagram below. I'm trying to calculate (using MATLAB) the torque required to move it but my answers don't match up with what I'm expecting. ...
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3answers
245 views

Dynamic simulation of compliant elements in quadruped robot

I have a preliminary design for a legged robot that uses compliant elements in the legs and in parallel with the motors for energy recovery during impact as well as a pair of flywheels on the front ...
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2answers
11k views

Running my 3 DOF Inverse Kinematics Code: Works in MATLAB, not in Python

I asked a question similar to this earlier, but I believe I have a new problem. I've been working on figuring out the inverse kinematics given an x,y,z coordinate. I've adopted the Jacobian method, ...
2
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1answer
687 views

Filtering IMU angle discontinuities

I try to measure Euler angles from an IMU, but some discontinuities happens during measurement, even in vibrationless environment, as shown in the images below. Can someone explain which type of ...
3
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2answers
835 views

Using Gazebo installed on same machine in MATLAB

I am planning to use MATLAB and Gazebo for one of my course projects. However all the tutorials I have seen till now use Gazebo by using a virtual machine which has ROS and Gazebo installed. I have ...
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1answer
404 views

Are there any aerodynamics modeling/simulation software that is capable to consume a SolidWorks model and to interface with MATLAB/Simulink?

Currently I am developing a control system for an aircraft of a unique design (something in between a helicopter and a dirigible). At this moment I can model only the dynamics of this vehicle without ...
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2answers
92 views

How can I control fast real time sensor (250Hz) with slow system display(60Hz)

We do some experiments of real time representation of sensor position on TV. In this experiments, we used sensors for collect real time position in 3D at 250Hz and TV for Display the sensor position ...
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1answer
741 views

Mobile Robot path reconstruction by using IMU acceleration and Yaw angle

I hope you can help me with my project. I'm using a skid-steering wheeled mobile robot for autonomous navigation and I'd like to find a way to be able to perform path reconstruction in Matlab. By ...
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4answers
1k views

Image Based Visual Servoing algorithm in MATLAB

I was trying to implement the IBVS algorithm (the one explained in the Introduction here) in MATLAB myself, but I am facing the following problem : The algorithm seems to work only for the cases that ...
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2answers
1k views

How can I get the values of a IMU from the serial message received in Simulink via UART?

I try to read IMU sensor data from an Arduino mega 2560 UART with serial receive block of Arduino support package for simulink. The IMU can send binary packets and also nmea packets and I can ...
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2answers
2k views

Gyroscope - How can I remove low frequency component with a high pass filter only?

I'm using Matlab to suppress low frequency components with a high pass filter. Objective Filter angular velocity measurements affected by high frequency noise and bias in order to get the best ...
6
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1answer
4k views

MATLAB 3D Simulation with SOLIDWORKS model

I'm learning to make a 3D simulation in MATLAB based on a model designed from SOLIDWORKS. There is an example: SIMULINK+SOLIDWORKS The way used here is: Create a 3D model in SOLIDWORKS Create a ...
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1answer
216 views

Matlab: System simulation with dynamic state matrix / input matrix [closed]

I have the following system: $$\dot{x} = A(t)x+B(t)u$$ $$y = x$$ $A(t)$ and $B(t)$ are actually scalar, but time-dependent. If they would be constant, I could simulate the system in Matlab using: <...
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1answer
651 views

7DOF inverse kinematics spherical wrist

Is it possible to apply kinematic decoupling for a 7 DOF 7R manipulator with spherical wrist? If it is possible, can anyone suggest a reference on how to apply this approach with a redundant ...
2
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1answer
424 views

Human arm inverse kinematics

Hi I want to implement an human arm robot and a task such as moving a glass between two points using Robotic Toolbox for Matlab by Peter Coorke. I'm a student and I'm a newbie in this kind of things ...
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1answer
254 views

Matlab Control Toolbox root locus

I'm using the control system toolbox provided by matlab to estimate the gains of my controller: using root locus design I get a graph like this one . My question is: what is the x on the x-axis? ...
2
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1answer
558 views

Quadcopter PID output and duty cycle conversion

I'm trying to design two PD controllers to control the roll and pitch angle of my quadcopter and a P controller to control the yaw rate. I give to the system the reference roll, pitch and yaw rate ...
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2answers
397 views

Matlab toolbox (Windows) for Sick lasers?

Does anybody know where I can get a matlab toolbox or functions to work with a SICK laser-scanner (Windows OS)? I'm using a SICK-LDRS2110 with ethernet cable, but SOPAS software does not allow me to ...
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1answer
474 views

position control for linear model of quadrotor (problem with tracking task)

Lately, if you notice I have posted some questions regarding position tracking for nonlinear model. I couldn't do it. I've switched to linear model, hope I can do it. For regulation problem, the ...
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1answer
429 views

Stereo vision in Matlab [closed]

I am working on a project about robot soccer vision. How I utilize two webcams as a stereo vision in matlab for robot soccer matters?
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2answers
3k views

how to implement and code inner and outer PD controllers for quadrotor for position tracking

The quadrotor system is multi-ODEs equations. The linearized model is usually used especially for position tracking, therefore one can determine the desired x-y positions based on the roll and pitch ...
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0answers
108 views

Pole placement gains tuning

given my control system I have found the region of the complex space that satisfies my specifications, determining poles position in 0.5 +- 0.2i. Now I want to find the gains that fix the desider ...
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3answers
100 views

Help to dimension the right controller for the following Tranfer Function

I have a generic problem to create a controller for the following system: $$\ddot{x}(t) = a y(t)$$ where $a$ is a constant real value. The system could be seen as an equivalent of a mass-spring-...
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6answers
4k views

How do I work out the kinematic solution of a robot arm?

I draw a robotic arm in Solidworks, but I'm not so sure about how to find out the DOF, forward and backward kinematic. Could anyone help me understand how to work out the kinematic solution of this ...
2
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3answers
1k views

RGB-D SLAM - Compute Information Matrix

currently im working on a RGB-D SLAM with a Kinect v1 Camera. In the front-end the SLAM estimates the pose with Ransac as an initial guess for the ICP. With the pose estimation i transform the ...
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4answers
220 views

Why I'm getting very long terms in the inertia matrix (or dynamics model) of the robot using matlab script?

I'm working on the dynamics model of a RRRR articulated robot, I'm following Euler-Lagrange approach and developing my code in m-file in matlab; I'm looking for dynamic model of this form: $$ D(q) \...
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2answers
575 views

how to plot a line between two centroids in matlab

I am able to locate centroids of each blocks, but i am unable to join two blocks with a line segment by avoiding the obstacle as shown in the figure. Please need help how do i achieve this using ...