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Delay estimation by FFT
Summary: The delay between a signal and a reference appears in the frequency domain as linear phase shift. It can be estimated with subsample accuracy using FFT methods.This article provides a ...
posted by Markus Nentwig on Sep 22 2007 under Matlab | Basics | Tips and Tricks Comments (20) |
Fitting Filters to Measured Amplitude Response Data Using invfreqz in Matlab
This blog post has been moved to the code snippet section and can now be found HERE. Please update your bookmark. Thanks! ... 
posted by Julius Orion Smith III on Oct 11 2010 under Audio DSP | Matlab | Design Methodolgies Comments (1) |
Least-squares magic bullets? The Moore-Penrose Pseudoinverse
Hello, the topic of this brief article is a tool that can be applied to a variety of problems: The Moore-Penrose Pseudoinverse.While maybe not exactly a magic bullet, it gives us least-squares optima...
posted by Markus Nentwig on Oct 24 2010 under Matlab | Basics | Tips and Tricks Comments (5) |
Design study: 1:64 interpolating pulse shaping FIR
This article is the documentation to a code snippet that originated from a discussion on comp.dsp. The task is to design a root-raised cosine filter with a rolloff of a=0.15 that interpolates to 64x...
posted by Markus Nentwig on Dec 26 2011 under Matlab | Basics | Multirate DSP Comments (4) |
Time Machine, Anyone?
Abstract: Dispersive linear systems with negative group delay have caused much confusion in the past. Some claim that they violate causality, others that they are the cause of supe... 
posted by Andor Bariska on Mar 7 2008 under Matlab | Academia / Research Comments (5) |
Accelerating Matlab DSP Code on the GPU
Intrigued by GPUs, I've spent a few days testing out Jacket, an interface that lets you accelerate MATLAB (my favorite, if frustrating language) on NVIDIA GPUs. It's definitely got some caveats. B... 
posted by Seth Benton on Mar 25 2010 under Matlab | Academia / Research | Design Methodolgies | GPGPU | Imaging Comments (2) |
Correlation without pre-whitening is often misleading
White Lies Correlation, as one of the first tools DSP users add to their tool box, can automate locating a known signal within a second (usually larger) signal. The expected result of a correlation i... 
posted by Peter Kootsookos on Feb 18 2008 under Matlab | Basics | Tips and Tricks Comments (5) |
Discrete Wavelet Transform Filter Bank Implementation (part 1)
UPDATE: Added graphs and code to explain the frequency division of the branches The focus of this article is to briefly explain an implementation of this transform and several filter bank forms. Th... 
posted by David Valencia on Oct 27 2010 under Matlab | Basics | Academia / Research | Tips and Tricks | Multirate DSP | wavelet Comments (0) |
Matlab Programming Contest
Every 6 months Mathworks hosts an online Matlab programming contest. If you love or hate Matlab check out the contest. The group does a really good job putting together the puzzles. ... 
posted by Christopher Felton on Nov 10 2010 under Matlab | Basics Comments (0) |
Instantaneous Frequency Measurement
I would like to talk about the oft used method of measuring the carrier frequency in the world of Signal Collection and Characterization world. It is an elegant technique because of its simplicity. Bu... 
posted by Parth Vakil on Feb 4 2008 under Matlab | FPGA | Basics Comments (18) |
