## Forums comp.dsp

## Adaptive PIDF under closed-loop

inHi guys I know this not quite by the book of control theory, but i am looking into ways to implement an adaptive system onto my PIDF. Lets say...

Hi guys I know this not quite by the book of control theory, but i am looking into ways to implement an adaptive system onto my PIDF. Lets say (theoretical) that we dont have equations of state, hence we can't linearize the system around certain operating points. We can only do open-loop step response to estimate a optimal controller. The system is unstable and have complex poles. With that b...

## Book recommendations

inHi. I have asked this question on Stack Exchange in DSP section, as well. H= ope it is ok if I have copied this question here :) I am looking...

Hi. I have asked this question on Stack Exchange in DSP section, as well. H= ope it is ok if I have copied this question here :) I am looking for a good reference on DSP. I am a little bit more than begin= ner and have some experience in DPS. I think I would have to start with rat= her easier books where a concept of DSP is explained based on practical exa= mples, intuitively. Eventually...

## Python for DSP

inSeems that Python is catching on for some DSP work. The recent Coursera course co-sponsored by Julius Smith III used Python rather than...

Seems that Python is catching on for some DSP work. The recent Coursera course co-sponsored by Julius Smith III used Python rather than Matlab. I've searched for DSP libraries but there's kind of a confusing jumble. Some are just using SciPy. Does anyone know of specific Python libs that would extend SciPy's scope?

## SNR for ECG signal

inHi all, I am working on baseline wander noise removal from ECG signal. I have to compare the performance of different algorithms. for comparison...

Hi all, I am working on baseline wander noise removal from ECG signal. I have to compare the performance of different algorithms. for comparison I have to use SNR. My question is how to calculate noise and signal power of an ECG signal available in the data set. I do not know what kind of noise is there in the ECG signal. I have tried like this: 1. Filter the ECG signal with a basic filter ...

## ldd results on binaries from Ubuntu and its dependencies?

inWhen I ran ldd on myprogeamExecutable and I got: linux-vdso.so.1 => (0x00007fff08709000) libm.so.6 => /lib/x86_64-linux-gnu/libm.so.6...

When I ran ldd on myprogeamExecutable and I got: linux-vdso.so.1 => (0x00007fff08709000) libm.so.6 => /lib/x86_64-linux-gnu/libm.so.6 (0x00007f015360a000) libc.so.6 => /lib/x86_64-linux-gnu/libc.so.6 (0x00007f0153245000) /lib64/ld-linux-x86-64.so.2 (0x00007f0153929000) I need to port this to a server. I am wondering how to meet these dependencies - I know the server is 64bit Debian

## Qpsk Demodulator

inI implemented a qpsk demodulator on NI fpga . When i run the code iam getti= ng correct constellation one out of 4 succesive runs remaining...

I implemented a qpsk demodulator on NI fpga . When i run the code iam getti= ng correct constellation one out of 4 succesive runs remaining times const= ellation is rotating as shown in fig url: https://decibel.ni.com/content/se= rvlet/JiveServlet/showImage/105-32337-135325/Constellation.jpg . q1. what are the possible causes for constellation rotation?

## questions on convex hull

inConvex sets have become important in numerical optimization, so I'm trying to edjicate myself. Given some subset of points in a vector...

Convex sets have become important in numerical optimization, so I'm trying to edjicate myself. Given some subset of points in a vector space, one must first determine its convex hull. For a set of points on a plane, this is easy to visualize However, I don't see how to write the code to accomplish this. Now suppose you have a set of vectors in a 6-D space. The convex hull w...

## Conversion of Single Photo to 3D to Video -- Trial Runs

inThis is a short video segment showing some trial runs at an early stage in = the development...

This is a short video segment showing some trial runs at an early stage in = the development process: http://www.youtube.com/watch?v=3DmUEiiVFqVww One set of segments takes place over Chicago, the other around Mount Rushmo= re. Since it's only a first trial run (basically to see how far one can mov= e in different directions before distortion sets in), the images were repro= jected at redu...

## hay, can any of you IEEE guys get me a copy of this paper?

inBrown, John L. Sampling bandlimited periodic signals - an application of the DFT IEEE Transactions on Education (Volume:23,...

Brown, John L. Sampling bandlimited periodic signals - an application of the DFT IEEE Transactions on Education (Volume:23, Issue: 4, Nov 1980) http://ieeexplore.ieee.org/xpl/articleDetails.jsp?arnumber=4321415 i would really appreciate it. -- r b-j rbj@audioimagination.com "Imagination is more important than knowledge."

## From Speech Recognition to Speaker Recognition?

Please see this thread in the CMU Sphinx...

Please see this thread in the CMU Sphinx forum: https://sourceforge.net/p/cmusphinx/discussion/speech-recognition/thread/1d197b96/ TIA -Ramon