Sign in

username or email:

password:



Not a member?
Forgot your password?

Search blogs



Search tips

Articles by category

Ads

Our Bloggers

See Also

Embedded SystemsFPGA

DSP - Digital Signal Processing - Blogs

Would you like to be notified by email when a new blog entry gets published on DSPRelated.com?

  

Most Popular First | Highest Rated First | Most Recent First


RSS Feed

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 
Comments (0) |

A 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) |

Computing FFT Twiddle Factors

Some days ago I read a post on the comp.dsp newsgroup and, if I understood the poster's words, it seemed that the poster would benefit from knowing how to compute the twiddle factors of a radix-2 fa...

posted by Rick Lyons on Aug 7 2010 under Tips and Tricks 
Comments (1) |

Handling Spectral Inversion in Baseband Processing

The problem of "spectral inversion" comes up fairly frequently in the context of signal processing for communication systems. In short, "spectral inversion" is the reversal of the ...

posted by Eric Jacobsen on Feb 11 2008 under Tips and Tricks | Wireless | Communication 
Comments (4) |

A Fixed-Point Introduction by Example

Fixed-point is used to represent fractional numbers of finite-word length.  Fixed-point is an interpretation of a 2's compliment number usually signed but not limited to sign representation. &nbs...

posted by Christopher Felton on Apr 25 2011 under FPGA | Basics 
Comments (12) |

An Interesting Fourier Transform - 1/f Noise

Power law functions are common in science and engineering. A surprising property is that the Fourier transform of a power law is also a power law. But this is only the start- there are many interest...

posted by Steve Smith on Nov 23 2007 under Academia / Research 
Comments (9) |

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 (3) |

Polyphase filter / Farrows interpolation

Hello, this article is meant to give a quick overview over polyphase filtering and Farrows interpolation. A good reference with more depth is for example Fred Harris' paper: http://www.signumconce...

posted by Markus Nentwig on Sep 18 2007 under Basics 
Comments (11) |

Understanding the 'Phasing Method' of Single Sideband Demodulation

Download the pdf version There are four ways to demodulate a transmitted single sideband (SSB) signal. Those four methods are: synchronous detection, phasing method, Weaver method, and filter...

posted by Rick Lyons on Aug 8 2012 under Communication 
Comments (6) |

Computing the Group Delay of a Filter

I just learned a new method (new to me at least) for computing the group delay of digital filters. In the event this process turns out to be interesting to my readers, this blog describes the method...

posted by Rick Lyons on Nov 19 2008 under Tips and Tricks 
Comments (8) |
| 1 | | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 |