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Martin Ryba


BAE Systems

Last seen: 3 månader ago |  Active since 2021

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Professional Interests: GPS

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Question


Loading NEXRAD Level II data files?
There is one tutorial example where they took NEXRAD data and saved it as a mat file; and there's something the Web Mapping Tool...

3 månader ago | 0 answers | 0

0

answers

Question


inputParser not supported by MATLAB Coder
I started to get into the habit of using inputParser to manage construction options to MATLAB classes I create. It just seems li...

4 månader ago | 1 answer | 0

1

answer

Question


Interpolating Phased Array Toolbox patterns
I have an antenna modeled in Phased Array Toolbox, and after updating its steering I'm using the pattern() function to store the...

7 månader ago | 2 answers | 0

2

answers

Question


Open Simulink DMR file from prior session
Hello, I was running a long simulation (24+ hours), and of course we had a power shutdown and things went boop. Is there any way...

ungefär ett år ago | 1 answer | 0

1

answer

Question


Multiple Simulink runs only changing signal vector
I'm much more practiced at MATLAB than Simulink, but this problem has stumped me on a few models. I do signal processing and am ...

ungefär ett år ago | 2 answers | 0

2

answers

Question


Function for sanitizing field name strings
We have a file parser function (Midas BLUE) that generates structure arrays for some of the keyword/value pairs that can occur. ...

mer än ett år ago | 1 answer | 0

1

answer

Question


Simulink HDL Coder equivalent to attribute synthesis off?
I have a DSP-heavy block that I've created targeting a Xilinx FPGA core. Embedded within a submodule are some debug/visualizatio...

mer än ett år ago | 1 answer | 0

1

answer

Question


dsp.FIRRateConverter doesn't handle large ratios?
I have some long data vectors that need to be resampled at a (precise) ratio of 576/625 (going from 8.3333 Msps to 7.68 Msps). T...

mer än ett år ago | 1 answer | 0

1

answer

Question


Template function for invoking System Object MATLAB Coder
I'd like to make a C++ library object pretty much straight from an existing DSP System Toolbox object (specifically dsp.FIRDecim...

mer än ett år ago | 1 answer | 0

1

answer

Question


Nonstandard input date format into readstruct function?
I have some XML files from another system and I want to be able to process the data therein. The readstruct function mostly fits...

nästan 2 år ago | 2 answers | 0

2

answers

Question


Parameter covariance from lsqnonlin when using Jacobian Multiply function?
Hi, I'm trying to estimate the uncertainty in my model parameters for a large NLSQ problem (~2M measurements, ~10k unknowns), so...

ungefär 2 år ago | 3 answers | 1

3

answers

Question


Why isn't angle2dcm compatible with codegen?
Was working up some beamforming code for code generation, and my initial stab at using angle2dcm for creating the DCMs (for rota...

mer än 2 år ago | 1 answer | 0

1

answer

Answered
imagesc or equivalent with datetime as x axis.
See the wonderful dynamicDateTicks function. I just tried it and it's marvelous!

mer än 2 år ago | 0

Answered
How do you make the x-axis in imagesc using datetime values?
See the wonderful dynamicDateTicks function. Just tried it and it is marvelous!

mer än 2 år ago | 0

Question


Move from parfor to parfeval?
I have a large simulation that uses a LSF cluster that supports Parallel Toolbox. Right now, the meat of the effort is in a parf...

nästan 3 år ago | 1 answer | 0

1

answer

Question


Fastest large SVD computation in multithreaded machine?
I have a waveform optimization problem that uses a large SVD in an interative loop. For instance, with my current settings, the ...

nästan 3 år ago | 1 answer | 0

1

answer

Answered
Parfor with Iterations Having Unequal Execution Times
Hi I've noticed similar behavior all the way to r2020a. I have a big parfor loop where the execution time of each step is on the...

mer än 3 år ago | 0