Amrtanshu Raj
Last seen: 15 dagar ago
MathWorks
51 total contributions since 2020I am Application Support Engineer at Mathworks.
My major area of interest is Robotics, Automation, Autonomous Driving and Image Processing.
Disclaimer: Any articles /ideas/opinions here are my own and in no way reflect that of Mathworks.
Amrtanshu Raj's Badges
Answer 10 questions that were unanswered for more than 30 days
Awarded to Amrtanshu Raj on 05 Feb 2021
Contribute at least one answer each month for 3 consecutive months
Awarded to Amrtanshu Raj on 02 Nov 2020
3 of your answers have been accepted
Awarded to Amrtanshu Raj on 30 Sep 2020
Provide your first answer ever to someone else's question
Awarded to Amrtanshu Raj on 26 Aug 2020
Answered
Sensitivity Analysis Tool for Pre-Gathered Discrete Data Sets?
Hi, you can refer to this example which involves external data while doing senstivity analysis. You can also refer to additiona...
Sensitivity Analysis Tool for Pre-Gathered Discrete Data Sets?
Hi, you can refer to this example which involves external data while doing senstivity analysis. You can also refer to additiona...
25 dagar ago | 0
Answered
rostime call is slow
Hi, The difference in computation time is because of the implementation difference between the MATLAB and Python version of the...
rostime call is slow
Hi, The difference in computation time is because of the implementation difference between the MATLAB and Python version of the...
27 dagar ago | 0
Answered
Find intersection between two 2D meshes
Hi, Your task can be performed by Using collisionMesh to create a collision geometry. using checkCollision to check if the ge...
Find intersection between two 2D meshes
Hi, Your task can be performed by Using collisionMesh to create a collision geometry. using checkCollision to check if the ge...
27 dagar ago | 0
Answered
Camera Calibration with AprilTags not working with png image datafile
Hi, I have brought this issue to the notice of our developers. They will investigate the matter further.
Camera Calibration with AprilTags not working with png image datafile
Hi, I have brought this issue to the notice of our developers. They will investigate the matter further.
27 dagar ago | 0
Answered
How can I get distance data output from driving designer scneario ? otherwise how can I get distance so that it will be input for ACC model
Hi, Here is an example that has a similar implementation of ACC in Driving Scenerio. You can aslo refer to this documentation...
How can I get distance data output from driving designer scneario ? otherwise how can I get distance so that it will be input for ACC model
Hi, Here is an example that has a similar implementation of ACC in Driving Scenerio. You can aslo refer to this documentation...
27 dagar ago | 0
| accepted
Answered
Automated Driving Toolbox motion models
Hi, Here is a matlab example that models the motion of a tractor trailer system. This example uses simulink and the vehicle dyn...
Automated Driving Toolbox motion models
Hi, Here is a matlab example that models the motion of a tractor trailer system. This example uses simulink and the vehicle dyn...
27 dagar ago | 0
Answered
How can I unzip("MerchData.zip"); - permission denied to create file
Hi, You should try to change the current directory (using cd) to some other directory like Desktop or Home and then try. You c...
How can I unzip("MerchData.zip"); - permission denied to create file
Hi, You should try to change the current directory (using cd) to some other directory like Desktop or Home and then try. You c...
27 dagar ago | 0
Answered
Heatmap colors in districts of a map
Hi, The colormap can be used to change the colors in the plots. The colors are not random but taken from a set scheme as you ca...
Heatmap colors in districts of a map
Hi, The colormap can be used to change the colors in the plots. The colors are not random but taken from a set scheme as you ca...
28 dagar ago | 0
Answered
How does Simscape derive the state of charge, temperature, and terminal voltage from an input current in the battery models?
Hi, The Documentation for battery model mentions the equtations used in the model. You can also refer to the refrences attached...
How does Simscape derive the state of charge, temperature, and terminal voltage from an input current in the battery models?
Hi, The Documentation for battery model mentions the equtations used in the model. You can also refer to the refrences attached...
28 dagar ago | 1
Answered
Curve Extraction from Binary Image
Hi, In the image there are only 2 labels generated by bwlabeln, Assuming that you wish to generate a polynomial and plot it fo...
Curve Extraction from Binary Image
Hi, In the image there are only 2 labels generated by bwlabeln, Assuming that you wish to generate a polynomial and plot it fo...
29 dagar ago | 0
Answered
swarm simulation using mobile robotics simulation toolbox
Hi, Here is an example for swarm robots simulation. This will help you to simulate multiple Ware house robots using Robotics Sy...
swarm simulation using mobile robotics simulation toolbox
Hi, Here is an example for swarm robots simulation. This will help you to simulate multiple Ware house robots using Robotics Sy...
29 dagar ago | 0
Answered
send mavlink message to px4 by udp
Hi, As mentioned by @Ankur Bose you can use the Path Planning Protocol to send a TRAJECTORY_REPRESNTATION_WAYPOINTS message to...
send mavlink message to px4 by udp
Hi, As mentioned by @Ankur Bose you can use the Path Planning Protocol to send a TRAJECTORY_REPRESNTATION_WAYPOINTS message to...
ungefär en månad ago | 0
Answered
matchScansLine() gives poor match hypotheses
Hi, I have made modifications to your code that give better match and position estimates. I advise you to go through the refren...
matchScansLine() gives poor match hypotheses
Hi, I have made modifications to your code that give better match and position estimates. I advise you to go through the refren...
2 månader ago | 0
Answered
How to make MATLAB find all roots of the equation?
Hi, There is currently no method to include the required condition in the solve function to get the roots. I have brought this ...
How to make MATLAB find all roots of the equation?
Hi, There is currently no method to include the required condition in the solve function to get the roots. I have brought this ...
2 månader ago | 0
Answered
How to reduce the computation time for adding 3D-array?
Hi, You can use the parfor loop to use parallel processing and get higher computation speeds. However you will have to modify y...
How to reduce the computation time for adding 3D-array?
Hi, You can use the parfor loop to use parallel processing and get higher computation speeds. However you will have to modify y...
2 månader ago | 0
Answered
Errors after converting project from 2019b to 2017a
Hi, The reason you are facing this issue is because the 'KeepCollinearPoints' Parameter for polyshape function was introduced a...
Errors after converting project from 2019b to 2017a
Hi, The reason you are facing this issue is because the 'KeepCollinearPoints' Parameter for polyshape function was introduced a...
2 månader ago | 1
| accepted
Answered
generating periodic trapezoidal waves with ramps
Hi, The pulstran function allows you to input custom function handles to generate custom waveforms. You can use this equation t...
generating periodic trapezoidal waves with ramps
Hi, The pulstran function allows you to input custom function handles to generate custom waveforms. You can use this equation t...
2 månader ago | 0
Answered
Find spectrum of part of the signal
Hi, You can consider dividing your signal into small parts of 100 samples as you mentioned and then doing an FFT analysis on ea...
Find spectrum of part of the signal
Hi, You can consider dividing your signal into small parts of 100 samples as you mentioned and then doing an FFT analysis on ea...
2 månader ago | 0
Answered
Quaternion rotation around only two axes.
Hi, You can convert the quaternion to euler angles and then set the yaw(z axis) to zero and then convert it back to quaternion ...
Quaternion rotation around only two axes.
Hi, You can convert the quaternion to euler angles and then set the yaw(z axis) to zero and then convert it back to quaternion ...
2 månader ago | 0
Answered
simply trajectory generation for a ground robot
Hi, The waypoint Trajectory Generator will be able to generate a "S" shape trajectory. You can give waypoints along the "S" Sha...
simply trajectory generation for a ground robot
Hi, The waypoint Trajectory Generator will be able to generate a "S" shape trajectory. You can give waypoints along the "S" Sha...
2 månader ago | 0
Answered
How to connect a PID signal to a H-bridge driver
Hi, The simplest way to convert between simulink and Simscape electrical Voltage is use a Controlled Voltage source block. In t...
How to connect a PID signal to a H-bridge driver
Hi, The simplest way to convert between simulink and Simscape electrical Voltage is use a Controlled Voltage source block. In t...
2 månader ago | 0
Answered
Trajectory for an aerial vehicle
Hi, You can use the waypointTrajectory Generator to get a 6DOF trajectory in MATLAB. There are other methods also to generate T...
Trajectory for an aerial vehicle
Hi, You can use the waypointTrajectory Generator to get a 6DOF trajectory in MATLAB. There are other methods also to generate T...
3 månader ago | 0
Answered
Rotary encoder simulation in Simulink
Hi, You can refer to this docuement for simulating the Hall effect Rotary Encoder in Simscape. You can also find the details of...
Rotary encoder simulation in Simulink
Hi, You can refer to this docuement for simulating the Hall effect Rotary Encoder in Simscape. You can also find the details of...
3 månader ago | 0
Answered
Is there a pipe bend or elbow bock for thermal fluid?
Hi, You can refer to this example of a cooling system using a thermal Fluid in Simscape. You can also edit the parameters of th...
Is there a pipe bend or elbow bock for thermal fluid?
Hi, You can refer to this example of a cooling system using a thermal Fluid in Simscape. You can also edit the parameters of th...
3 månader ago | 0
Answered
How can I connect matlab mobile with my android smartphone
Hi, Directly interfacing the Matlab Mobile with Arduino Hardware is not supported yet. However a similar functionality can be a...
How can I connect matlab mobile with my android smartphone
Hi, Directly interfacing the Matlab Mobile with Arduino Hardware is not supported yet. However a similar functionality can be a...
3 månader ago | 0
Answered
Graphing Same color every iteration in stacked bar chart
Hi, You can edit your code with the help of attached code. Also you can refer to bar for documentation. barchart = bar(1,[stic...
Graphing Same color every iteration in stacked bar chart
Hi, You can edit your code with the help of attached code. Also you can refer to bar for documentation. barchart = bar(1,[stic...
3 månader ago | 0
| accepted
Answered
Can I extract XY data from a figure and sort it by the color of the datapoints?
Hi, Since you have a .fig file, the following code will help you get back the datapoints. This is the basic structure, you may ...
Can I extract XY data from a figure and sort it by the color of the datapoints?
Hi, Since you have a .fig file, the following code will help you get back the datapoints. This is the basic structure, you may ...
3 månader ago | 0
Answered
How to find where certain groups of zeros are located in a cell
Hi, Assuming you want to find the first index of all the groups of 4 zeros in a array. Here is the code - arr = [1 0 1 0 0 1 ...
How to find where certain groups of zeros are located in a cell
Hi, Assuming you want to find the first index of all the groups of 4 zeros in a array. Here is the code - arr = [1 0 1 0 0 1 ...
3 månader ago | 0
| accepted
Answered
odomerty motion models without non-holonomic constraints for monteCarloLocalization object
Hi, Currently the option to change or add a custom motion model is unavailable for monteCarloLocalisation. I have brought this ...
odomerty motion models without non-holonomic constraints for monteCarloLocalization object
Hi, Currently the option to change or add a custom motion model is unavailable for monteCarloLocalisation. I have brought this ...
4 månader ago | 0
| accepted
Answered
How to store continuous serial data from COM port
Hi, You can achieve the required function using a global variable. They allow you to share variables across multiple functions ...
How to store continuous serial data from COM port
Hi, You can achieve the required function using a global variable. They allow you to share variables across multiple functions ...
4 månader ago | 0
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