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DSPRelated.com has been around since 1999 and has become over the years the most popular independent internet resource for Digital Signal Processing (DSP) engineers around the world.
You are invited to create an account with us (quick and free). Doing so will allow you to contribute to the the site by rating DSP books and DSP Internet resources, as well as participate to one or many DSP related discussion(s).

Most Popular DSP Code Snippets

Saving a Matlab figure to file using command-line
by |
Once again, this is another example that Matlab does weird things with its figure window.  If y...

Computing FFT Twiddle Factors
by Rick Lyons |
This text, figures, and code snippet are also available in downloadable PDF format Typical applic...

Discrete Haar Wavelet Transform
by |
See article at http://www.dsprelated.com/showabstract/3639.php for the theory....

Adding a Controlled Amount of Noise to a Noise-Free Signal
by Rick Lyons |
The following gives two snippets of Matlab code. The first snippet is a function whose inputs are: (...

Zero Crossing Counter
by |
In some DSP applications, it can be very helpful to know how many times your signal has crossed the ...

Generate ideal QPSK..64QAM symbol error rates (reference result)
by Markus Nentwig |
Calculates the symbol error rate of QPSK/16QAM/64QAM/256QAM/1024QAM modulation for additive white Ga...

Halfband Filter Design with Python/Scipy
by Christopher Felton |
The following code snippet is an example how to design a half band filter.  Half band filters a...

Fitting Filters to Measured Amplitude Response Data Using invfreqz in Matlab
by Julius Orion Smith III |
In the 1980s I wrote the matlab function invfreqz that implements a fast (FFT-based) equation-error ...

Constellation Diagram for Binary QPSK
by Senthilkumar R |
This program is used to plot a constellation diagram for QPSK...

Signal fitting with subsample resolution
by Markus Nentwig |
Update: The most recent version can be found here and a demonstration here.The downloadable code is ...

More Code Snippets...

DSP Discussion Groups

Question regarding Faust for DSP
by Mauritz Jameson in Comp.DSP on Jul 27 2014
I have been given a problem to solve, but I'm having a hard time understanding the syntax and thus a... Question regarding Faust for DSP

How to simulate AWGN in communication systems for specific bandwidth?
by democritus1010101 in Comp.DSP on Jul 27 2014
I am trying to generate a AWGN waveform to add it to the signal of my simul= ated communication sys... How to simulate AWGN in communication systems for specific bandwidth?

modulation scheme
by SBR123 in Comp.DSP on Jul 26 2014
Hello All, The classical modulation scheme is defined as, x(n)*cos(w_0*n) <-> 0.5*[X(w+w_0)... modulation scheme

representing discrete periodic signal using sinusoidal signals
by SBR123 in Comp.DSP on Jul 25 2014
Hello All, I am trying to understand the concept of representing a discrete periodic signal using... representing discrete periodic signal using sinusoidal signals

Fourier series of sign(cos(.)) in simulation and practical mixer simulation
by Peter Mairhofer in Comp.DSP on Jul 25 2014
Hi, I simulate (or want to simulate) an RF system. My simulation Nyquist rate is 50GHz, the sign... Fourier series of sign(cos(.)) in simulation and practical mixer simulation

sound source localization using electret microphone array
by matar770 in Comp.DSP on Jul 23 2014
i want to use an electret microphone array to locate a sound sorce (actually its the direction of ar... sound source localization using electret microphone array

dsk 6416 digitals I/O
by "ale...@gmail.com [c6x]" in TMS320C6x on Jul 22 2014
First of all hello. I'm new here. I need to use digital input and output. i have some questions. 1... dsk 6416 digitals I/O

Problem Using Kiss FFT
by Javier Pajuelo in Comp.DSP on Jul 21 2014
I get different results using Kiss FFT and Octave/Matlab fft. Here's the input/output of my code:... Problem Using Kiss FFT

Nyquist and rectangular waveforms
by Bob Masta in Comp.DSP on Jul 21 2014
This is prompted by the discussion of aliasing in the thread "Higher upsampling with minimum phase ... Nyquist and rectangular waveforms

Funny looking headset connector
by Mauritz Jameson in Comp.DSP on Jul 19 2014
Hi I have a headset which has a funny looking cable connector. I don't know what kind of connecto... Funny looking headset connector

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