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RSS FeedWeighted least-squares FIR with shared coefficients
FIR design with arbitrary routing between delay line and coefficient multipliers. Includes a commented implementation of a generic IRLS FIR design algorithm. Introduction: Reverse Engineering Whil...
posted by Markus Nentwig on May 23 2012 under Matlab | Design Methodolgies Comments (0) |
How Not to Reduce DFT Leakage
This blog describes a technique to reduce the effects of spectral leakage when using the discrete Fourier transform (DFT). In late April 2012 there was a thread on the comp.dsp newsgroup discussing... 
posted by Rick Lyons on May 23 2012 under Tips and Tricks Comments (11) |
Python scipy.signal IIR Filter Design
Introduction The following is an introduction on how to design an infinite impulse response (IIR) filters using the Python scipy.signal package. This post, mainly, covers how to use the scipy... 
posted by Christopher Felton on May 13 2012 under Basics | Python Comments (2) |
Instant CIC
Summary: A floating point model for a CIC decimator, including the frequency response. Description: A CIC filter relies on a peculiarity of its fixed-point implementation: Normal operation involves...
posted by Markus Nentwig on May 8 2012 under Matlab | Basics | Tips and Tricks Comments (3) |
Curse you, iPython Notebook!
First, I think ipython is great. I use it daily and always have an ipython terminal open. But just recently, I was showing off the ipython 0.12 notebook and in the process created a ...
posted by Christopher Felton on May 1 2012 under Basics | Python Comments (4) |
Engineering the Statistics
Do you remember the probability course you took in undergrad? If you were like me, you would consider it one of those courses that you get out of confused. But maybe a time will come where you regret ... 
posted by Sami Al Dalahmah on Mar 26 2012 under Academia / Research | Probability Comments (2) |
The History of CIC Filters: The Untold Story
If you have ever studied or designed a cascaded integrator-comb (CIC) lowpass filter then surely you've read Eugene Hogenauer's seminal 1981 IEEE paper where he first introduced the CIC filter to th...
posted by Rick Lyons on Feb 20 2012 under Multirate DSP Comments (2) |
scipy.signal calling all developers
There has been some chatter on the scipy-dev mailing list lately about enhancing the scipy.signal package. Unfortunately, there seems to be a split. Some are going off and starting a new p...
posted by Christopher Felton on Jan 19 2012 Comments (2) |
[Book Review] Numpy 1.5 Beginner's Guide
Full Disclosure: The publisher of this book, PACKT, was soliciting reviewers. I volunteered to review the book and the publisher sent me an e-version of the book. Introduction The followin...
posted by Christopher Felton on Jan 7 2012 under Basics | Python Comments (0) |
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 (5) |