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RSS Feed'z' as in 'Zorro': Frequency Masking FIR
An efficient way to implement FIR filters. Matlab / Octave example included. Keywords: Frequency masking FIR filter implementation Introduction An "upsampled" FIR filter uses multiple-sample delays ...
posted by Markus Nentwig on Oct 2 2012 under Matlab | Design Methodolgies | Multirate DSP Comments (0) |
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 Comments (9) |
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 Comments (0) |
TCP/IP interface (Matlab/Octave)
Communicate with measurement instruments via Ethernet (no-toolbox-Matlab or Octave) Purpose Measurement automation is digital signal processing in a wider sense: Getting a digital signal from an ana...
posted by Markus Nentwig on Jun 17 2012 under Matlab | Tips and Tricks Comments (4) |
Weighted 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) |
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) |
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) |
Python number crunching faster? Part I
Everyone has their favorite computing platform, regardless if it is Matlab, Octave, Scilab, Mathematica, Mathcad, etc. I have been using Python and the common numerical and scientific packages a... 
posted by Christopher Felton on Sep 17 2011 under Matlab | Basics | DSP on the Web | Python Comments (4) |
Bank-switched Farrow resampler
Bank-switched Farrow resampler Summary A modification of the Farrow structure with reduced computational complexity.Compared to a conventional design, the impulse response is broken into a higher nu...
posted by Markus Nentwig on Aug 13 2011 under Matlab | Basics | Multirate DSP Comments (0) |
FREE Peer-reviewed IEEE signal processing courses
The IEEE signal processing society is offereing FREE peer reviewed courses, though not many, they are peer reviewed and span differenet topics like; wavelets, speech analysis, and statistical detectio... 
posted by Sami Al Dalahmah on Apr 26 2011 under Matlab | Academia / Research Comments (1) |