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# Python scipy.signal IIR Filtering: An Example

Introduction In the last posts I reviewed how to use the Python scipy.signal package to design digital infinite impulse response (IIR) filters, specifically, using the iir...

posted by Christopher Felton on May 19 2013 under Audio DSP | FPGA | Basics | Tips and Tricks | Python

# A Quadrature Signals Tutorial: Complex, But Not Complicated

posted by Rick Lyons on Apr 12 2013 under Basics | Communication | Tutorial

# FIR sideways (interpolator polyphase decomposition)

An efficient implementation of a symmetric-FIR polyphase 1:3 interpolator that doesn't follow the usual tapped delay line-paradigm. The example exploits the impulse response symmetry and avoids four ...

posted by Markus Nentwig on Sep 12 2012 under Matlab | Basics | Multirate DSP

# Design of an anti-aliasing filter for a DAC

Overview Octaveforge / Matlab design script. Download: here weighted numerical optimization of Laplace-domain transfer function linear-phase design, optimizes vector error (magnitude and phase) ...

posted by Markus Nentwig on Aug 18 2012 under Matlab | Basics | Wireless

# Python scipy.signal IIR Filter Design Cont.

In the previous post the Python scipy.signal iirdesign function was disected.  We reviewed the basics of filter specification and reviewed how to use the iirdesign function to design IIR filter...

posted by Christopher Felton on Jun 19 2012 under Basics | Python

# 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

# 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

# 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

# [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