Yogananda Jeppu

Last seen: 5 months 前 | 自 2010 起处于活动状态

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Professional Interests: Controls, Verification and Validation, Safety Critical, Aerospace, Formal Methods

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Index exceeds matrix dimensions
As a rule please use meaningful variable names. Simulink is a keyword. I get a feeling you are trying to store that data variabl...

6 years 前 | 0

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Aerospace and Flight Controls
https://in.mathworks.com/matlabcentral/answers/25688-modelling-and-simulation-of-a-flight-control-system This was answered long...

6 years 前 | 0

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How can I easily give all of my simulink random number generators different but controlable seeds?
I use an array of seed say 10x1. In a for loop i use the datetime to pick a random seed and assign it to the seed array. This ge...

6 years 前 | 0

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Why my simulink model is running in R2018b but not in R2015a ?
You can try the Signal Specification block from Simulink >> Signal Attributes >>. Perhaps this will work. Enable data type and s...

6 years 前 | 0

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Why my simulink model is running in R2018b but not in R2015a ?
Do you use variable being passed inside as an array. The matlab function in the simulink may require the array size to be define...

6 years 前 | 1

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Fitting simulink model with optimization toolbox?
I use a global variable for this and this works well. Define the tunable parameters in simulink as X array. X(1) is a gain in th...

7 years 前 | 0

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Calculate gain and phase margin on simulink
This is interesting. Can you define a time response equivalent instead (second order response) and tweak your controller to get ...

7 years 前 | 0

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Creation of a simulink block from a Mupad expression containing subscripts.
Use Mux block to get theta 1 ... N. You need so many inputs. The Mux will create the array for you. Take this as a single input ...

7 years 前 | 0

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How to set flags in Simulink?
Is the problem correct? How can flag be 1 in the else condition? Can you provide the matlab code with proper indentations. Try a...

7 years 前 | 0

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Simulation Time and Date
Try and make a simulink block with 6 outputs Year, Month, Day, hr min , sec. Divide the clock block output with the respective s...

7 years 前 | 0

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Simulation Time and Date
Try and make a simulink block with 6 outputs Year, Month, Day, hr min , sec. Divide the clock block output with the respective s...

7 years 前 | 0

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How to run ode15s function for several times
Try a simple Euler integration. Xd = f(a,b,c ...). x = Xd*dt+x; store the values of x in an array. See if this works.

7 years 前 | 0

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I have an optimization problem where i need to minimize the Total_Cost. I have the equations in AMPL format and i need to convert it to MATLAB. Can anybody help and correct my answer?
sum1 = sum1 + tcn{i;j}; The ';' should be perhaps a ','. It is easier if you can represent as a matrix with [] square brackets. ...

7 years 前 | 0

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Threshold / Crossing algorithm given a signal
You can use the find function and get the first index where the data crosses the threshold. Set all that data from current locat...

7 years 前 | 0

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Iteration between GUI and Excel file
Try reading the excel file using xlsread, processing it in Matlab and use xlswrite to write back to excel file. The help is quit...

7 years 前 | 0

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Files not showing up in 'current folder'
I am not sure if this is the right answer. I see a '-' in the name. Can you change it to an underscore '_' and check?

7 years 前 | 0

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Having Trouble with While loop not renewing a value
A good idea would be to not use a while loop and give one or two data points as a check if all the steps are behaving as expecte...

7 years 前 | 1

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Why am I not getting the table named SelectedTable as an output? How to rectify such errors in MATLAB?
Could you explain what you are trying to do?

7 years 前 | 0

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How do I determine transfer function from input/output data?
If it was filter sort of thing the TF would be available as a X(k+1) = A x(k) + B u(k) form. This would make sense to derive in ...

7 years 前 | 0

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problem using fminsearch, as parameters that I want to optimize is not input for the handle function
I am not sure how to do this. I have been using global in my function and optimizing using fminsearch (fmins before). It always ...

7 years 前 | 0

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How to get a for loop to update its iterations on a variable that can change.
Looks like you have the data and you are doing post processing. Try not to use the for loop. Use the find for the complete array...

7 years 前 | 0

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derivative block doesn't answer correctly.
You require a set of integrator. Your input is ddot(Y2ref) and dot(Y1ref). Use integrator in series to get ddot(Y2ref)->dot(Y2re...

7 years 前 | 0

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I need help modeling a Temperature controller for a furnace with PID on Matlab and SIMULINK with several conditions
You can use a rate limiter with variable limits. Put a logic to check the output temperature of the plant and change the rate li...

7 years 前 | 0

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Simulink: too many input arguments
Check the number of inputs to the mux block. Check their dimensions. If the inputs to the block are three from one port you may ...

7 years 前 | 0

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已回答
Code to compare cells with a range in MATLAB
Never use Matlab like a C code interpreter. Matlab has elegant function that help you do data manipulation very easily. You can ...

7 years 前 | 0

已回答
how to write matlab code for following problem
*For the simulation* Make a large vector a multiple of 30 (why?). For the first set with probability of 50% make half the vecto...

7 years 前 | 0

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how to optimize an input variable to a function to obtain a set point output variable?
Hi I am not sure I fully understand the question. What are IC1(), IC2() etc. They could be some complicated functions. You can ...

7 years 前 | 0

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A Three by Three Puzzle
Solve the 3x3 puzzle using Design Verifier

7 years 前 | 2 次下载 |

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The Schiaparelli Analysis
This is a simple analysis of the Schiaparelli failure using formal methods

7 years 前 | 4 次下载 |

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Formally Correct Control Elemental Blocks
This has a set of blocks which are formally correct in functionality

7 years 前 | 5 次下载 |

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Yogananda Jeppu

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