DSPRelated.com

Andreas Weishaupt (@ombz)

I received my EE degree in Switzerland in 2010. Specialized in general image and video processing, video tracking, interpolation and optimization algorithms. Five years of experience as firmware engineer and system architect within a small fabless ASIC design house in Switzerland and Taiwan, specialized in capacitive touch controllers. I have always been interested in broadening my knowledge in electronics design, DSP, and especially in communications and networking. Always looking for interesting freelance opportunities.

Re: Low-pass filter image data

Reply posted 3 years ago (12/22/2020)
While this might work in practice and produce results that might work for your application, it's not common to use EMA (exponential moving averager?) for image processing...

Re: Low-pass filter image data

Reply posted 3 years ago (12/18/2020)
There is no information from outside the image. Thus a smoother  cannot guess that information to operate perfectly along the edges. (Same holds for filtering 1D...

Re: Creating your own dev board

Reply posted 3 years ago (11/03/2020)
On what basis did you choose those chips and platforms?The PS-6 guitar effect pedal seems to sell for roughly 150$. And it's produced for sure for a way much lower...

Re: Creating your own dev board

Reply posted 3 years ago (11/03/2020)
That's beautifully said. So true.

Re: Off Topic: A geometry problem

Reply posted 6 years ago (11/16/2017)
Hi Rick.So are you saying that the correct solution is to park the car in the middle of the arts and crafts store? :pGuess the original question is simply missing...

Re: New DSP FAQ Section - please suggest topics

Reply posted 6 years ago (10/27/2017)
Why is the FFT so important? Can I use it to solve my problem?

Re: New DSP FAQ Section - please suggest topics

Reply posted 6 years ago (10/27/2017)
How can I denoise my signal? How can I detect XZY in whatever signal?

Re: New DSP FAQ Section - please suggest topics

Reply posted 6 years ago (10/27/2017)
Should I use a fancy library to build up my DSP application and which library--or should I develop everything from scratch and why (or why not)?

Re: New DSP FAQ Section - please suggest topics

Reply posted 6 years ago (10/27/2017)
(Why?) Should I use an OS on my DSP? (Or why not?)

Re: New DSP FAQ Section - please suggest topics

Reply posted 6 years ago (10/27/2017)
What are the caveats of using floating-point arithmetic by default?

Re: New DSP FAQ Section - please suggest topics

Reply posted 6 years ago (10/27/2017)
What is fixed-point arithmetic, why does it matter, why is it awesome to master and how work with it?

Re: New DSP FAQ Section - please suggest topics

Reply posted 6 years ago (10/27/2017)
How to best get hands-on with DSP?

Re: New DSP FAQ Section - please suggest topics

Reply posted 6 years ago (10/27/2017)
How to get from the math to the real world?

Re: New DSP FAQ Section - please suggest topics

Reply posted 6 years ago (10/27/2017)
How can I implement filter X in environment Y and does filter X even make sense in environment Y?

Re: Book tips for "control systems"

Reply posted 7 years ago (09/08/2017)
Thanks for the info! :) I'll have a look on the preview on Amazon. Yes I do have a bit of background in signal processing, more in the fields of image and video...

Re: Book tips for "control systems"

Reply posted 7 years ago (09/05/2017)
Hi! Thanks for your reply. :) Looks interesting as well. -Andy 

Re: Book tips for "control systems"

Reply posted 7 years ago (09/05/2017)
Hi Tim. I like the "by moi. ;) Was trying to see some pages of the book, like the table of contents and maybe 1..2 illustrative pages giving an idea of how the book...

Re: Book tips for "control systems"

Reply posted 7 years ago (09/05/2017)
Thanks for the link. :) -Andy

Book tips for "control systems"

New thread started 7 years ago
Hi guys!I wonder if you could recommend any books about "control systems" -- the basics, maths, plots etc. and of course some (common) real applications. This is...

Re: What is the reason for this 'linear error'

Reply posted 7 years ago (08/25/2017)
Hi! I think it would be convenient if you give explicit examples of expectation vs outcome and also put the related formulas and/or code snippets so the reader...

Re: Some ideas I had

Reply posted 7 years ago (11/16/2016)
Appreciate the comprehensive answer.Now I'm curious: what are the topics that we're not born for too late? :p

Re: two image correlation

Reply posted 7 years ago (11/07/2016)
Cross-correlation can result in a very narrow (like 1 pixel) wide peak indicating the true offset while other peaks are likely to appear as well in a real scenario...

Re: Downsampling from 2.0 MHz to 192kHz

Reply posted 7 years ago (10/25/2016)
I have a feeling that you are mixing up the concepts of modulation and information signal. I can hardly imagine that an audio signal has been up-converted to 2...

Re: Best Real Time Convolution Algorithm?

Reply posted 8 years ago (08/17/2016)
There is nothing like zero latency and zero delay in reality...Check your kernel and window size. In terms of "conceptual" computational complexity, fft/ifft will...
Hi TimYup, for that project the transmitter side was simply that PIC. Might be an ASIC in a future/current project; but I am not working in that company anymore...
Hi MikeThanks for the valuable hints :) For sure this one would've been ideal.CheersAndy
Hi Mark,Thanks for your answer. Well, not sure if really the burst errors were the problem. But if you look at the 24-bit message as 3 distinct 8-bit symbols then...
Hello Wolfgang,Actually the whole 24-bit story, the noise, transmission problems etc. is all not really my question, it's just its background. However, I felt like...
Hi Neil,Thank you for the reply. Yup that's what I discovered too: tricky subject, especially with all the heavy algebra that I am not familar with and that will...
Hello new forum,It's been a while I haven't posted here and I was surprised by the need to re-verify the user account. Anyway, I appreciate the professionalism in...

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