Sign in
Search blogs
Articles by category
Ads
Our Bloggers
See Also
DSP - Digital Signal Processing - Blogs
Would you like to be notified by email when a new blog entry gets published on DSPRelated.com?
RSS FeedA Quadrature Signals Tutorial: Complex, But Not Complicated
Click Here for a PDF version of this article Introduction Quadrature signals are based on the notion of complex numbers and perhaps no other topic causes more heartache for newcomers to DSP than th...
posted by Rick Lyons on Apr 12 2013 under Basics | Communication | Tutorial Comments (3) |
Polyphase Filters and Filterbanks
ALONG CAME POLY Polyphase filtering is a computationally efficient structure for applying resampling and filtering to a signal. Most digital filters can be applied in a polyphase format, and it is al... 
posted by Kyle Kastner on Mar 19 2013 under Multirate DSP | Python | DFT_FFT Comments (8) |
Beat Notes: An Interesting Observation
Some weeks ago a friend of mine, a long time radio engineer as well as a piano player, called and asked me, "When I travel in a DC-9 aircraft, and I sit back near the engines, I hear this fairly lo...
posted by Rick Lyons on Mar 13 2013 under Audio DSP Comments (6) |
DSPRelated Finally on Twitter!
Hello! It's been a while since you've heard from me - and there are many reasons why: 1 - I've made a clown of myself (video here) 2 - I've been working on unifying the user management system.... 
posted by Stephane Boucher on Feb 20 2013 under DSPRelated Comments (2) |
Using the DFT as a Filter: Correcting a Misconception
This article is also available in pdf format. I have read, in some of the literature of DSP, that when the discrete Fourier transform (DFT) is used as a filter the process of performing a DFT cause...
posted by Rick Lyons on Feb 18 2013 under Tips and Tricks Comments (12) |
The Little Fruit Market
There used to be a fruit market located at 391 San Antonio Road in Mountain View, California. In the 1990's I worked part time in Mountain View and drove past this market's building, shown in Figure...
posted by Rick Lyons on Jan 14 2013 Comments (5) |
Noise shaping
Keywords: Quantization noise; noise shaping A brief introduction to noise shaping, with firm resolve not to miss the forest for the trees. We may still stumble over some assorted roots. Matlab exampl... 
posted by Markus Nentwig on Dec 9 2012 Comments (0) |
Coupled-Form 2nd-Order IIR Resonators: A Contradiction Resolved
This blog clarifies how to obtain and interpret the z-domain transfer function of the coupled-form 2nd-order IIR resonator. The coupled-form 2nd-order IIR resonator was developed to overcome a short...
posted by Rick Lyons on Nov 23 2012 under Tips and Tricks Comments (2) |
Setting the 3-dB Cutoff Frequency of an Exponential Averager
This blog discusses two ways to determine an exponential averager's weighting factor so that the averager has a given 3-dB cutoff frequency. Here we assume the reader is familiar with exponential av...
posted by Rick Lyons on Oct 22 2012 under Tips and Tricks Comments (5) |
'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) |