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Dominik Hiltbrunner


Last seen: 1 year ago |  Active since 2020

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How do I need to configure Matlab's solver such that it returns the correct solutions when complex magnitudes are involved?
Hi community I am trying to solve the equation where g1, g2, Z, and C are positive, real numbers. w is the independent vari...

1 year ago | 1 answer | 0

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answer

Question


How to convert the integral of a long and complicated symbolic expression into a function file
I use Matlab's built-in matlabFunction() to convert symbolic expressions into optimized function handles or files. Consider the...

3 years ago | 0 answers | 0

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answers

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Receiving "Error using griddedInterpolant. Grid arrays must have NDGRID structure." error when interpolating 3D data.
Dear community I am using the griddedInterpolant() function to fit N-D data. In my particular case, the input has dimension 19x...

3 years ago | 1 answer | 0

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answer

Question


Why is the cubic Spline Interpolation wiggly in flat areas?
Dear community I am using Matlab's griddedInterpolant() to fit 2-D data with non-uniform samples. Please consider the following...

3 years ago | 1 answer | 0

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answer

Answered
Troubles with counter variables and file writings in parallelized for loop
I want to answer my own question according to the answers I got. The DataQueue can be used to solve all 3 problems. My approa...

3 years ago | 0

Question


Troubles with counter variables and file writings in parallelized for loop
Dear community I am currently trying to speed up the computation of a nested for-loop. To do so, I want to use the parallel com...

3 years ago | 2 answers | 0

2

answers

Question


Matlab is unable to evaluate very a very long expression
Attached to this post is a text file containing a very long expression. I want to evaluate this expression numerically in a Mat...

3 years ago | 1 answer | 1

1

answer

Question


How to fit a function to 2D array when some parts of the underlaying function are known?
I have an unknown function Z=f(X,Y) where a subset of Z-values are known for a certain range of X and Y values. Consider the fo...

3 years ago | 1 answer | 0

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answer

Question


Simulink's fixed-point tools ignores saturation limits during range collection
Hello community I'm using an iterative fixed-point conversion to optimize my Simulink model. When collecting the signal ranges ...

4 years ago | 1 answer | 0

1

answer

Question


HDL Coder: How to create a resettable delay that triggers on rising edge
Hello Community I'm trying to implement a limited counter which has a variable upper limit, i.e. the upper limit is given by a ...

4 years ago | 1 answer | 0

1

answer

Question


Im confused by Matlab's dontinuous-to-discrete conversion methods and how they work
Hello community Recently, I have been working a lot with the transformation from the s-domain to the z-somain using Matlab's c2...

4 years ago | 1 answer | 1

1

answer

Question


How to prevent override with double data type on certain block when deriving simulation ranges with Fixed-point Tool
Hello Community I'm using Simulink's Fixed-point Tool to optimize my design. There is a manually optimized part in my design, i...

4 years ago | 2 answers | 0

2

answers

Answered
How to implement a 3D Lookup Table that can be converted with HDL Coder?
Hello Kiran Kintali Thank you for your answer. I do fixed-point arithmetic. The integer and fraction lenght are set by the...

4 years ago | 0

Question


How to implement a 3D Lookup Table that can be converted with HDL Coder?
Hello Community I want to implement a non-linear function with 3 variables, i.e. f(x,y,z), in Simulink and convert it to VHDL c...

4 years ago | 3 answers | 0

3

answers

Answered
How to use the fixed-point designer properly - several issues.
Hello Kiran Kintali Thank you for that link, it is indeed a good source with interesting topics. However, it did not answer m...

4 years ago | 0

Question


How to use the fixed-point designer properly - several issues.
Hello Community I have a Simulink design which is supposed to be implemented on a FPGA. Currently, the design runs with identic...

4 years ago | 3 answers | 0

3

answers

Question


I cannot use the Fixed-point Tool when using dual-port RAMs in my design - strange bug
Hello Community I have a Simulink design which requires quite a large word lenght (64bit signed fixed-point) to run without ove...

4 years ago | 1 answer | 0

1

answer

Question


How to optimize multiplications with hdl coder
Hello community I'm using Simulink to generate VHDL code. The system runs on 2.5 MHz sample rate and is supposed to run on a ta...

4 years ago | 1 answer | 0

1

answer

Question


How do I convert binary strings from a text file to fixpoint numbers?
I have a text file in which each row contains one 60-bit number representing a signed fixed point number with 44-bit fraction, i...

4 years ago | 1 answer | 0

1

answer

Question


Why is this simple Simulink System unstable for low sampling frequencies?
Hello Community! I have a simple Simulink System which appears to be unstable for low sampling rates. The model looks like thi...

4 years ago | 0 answers | 0

0

answers

Answered
Show Simulink simulation progess inside Matlab skript without too much performance loss.
Hello Fangjun Jiang Thank you for your answer. I've already tried setting the sampling time much higher for this block, howeve...

4 years ago | 0

Question


Show Simulink simulation progess inside Matlab skript without too much performance loss.
Hello Community I have a large Simulnk model which takes quite long to run (+/- 30min). Now I would like to set parameters and...

4 years ago | 2 answers | 0

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answers