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Pulse Shaping in Single-Carrier Communication Systems
Some common conceptual hurdles for beginning communications engineers have to do with "Pulse Shaping" or the closely-related, even synonymous, topics of "matched filtering", "...
posted by Eric Jacobsen on Apr 10 2008 under Basics | Wireless | Communication Comments (29) |
Delay estimation by FFT
Summary: The delay between a signal and a reference appears in the frequency domain as linear phase shift. It can be estimated with subsample accuracy using FFT methods.This article provides a ... 
posted by Markus Nentwig on Sep 22 2007 under Matlab | Basics | Tips and Tricks Comments (20) |
A brief look at multipath radio channels
Summary: Discussion of multipath propagation and fading in radio links Radio channels, their effects on communications links and how to model them are a popular topic on comp.dsp. Unfortunately, for m...
posted by Markus Nentwig on Oct 31 2007 under Basics | Tips and Tricks Comments (7) |
Resolving 'Can't initialize target CPU' on TI C6000 DSPs - Part 1
IntroductionToday I am going to discuss some of the basics that can help prevent errors that frustrate some users. The information is directed toward TI C6000 family DSPs, but much of it also applies ... 
posted by Mike Dunn on Oct 30 2007 under TMS320C6x | Basics Comments (14) |
Resolving 'Can't initialize target CPU' on TI C6000 DSPs - Part 2
Configuration The previous article discussed CCS configuration. The prerequisite for the following discussion is a valid CCS configuration file. All references will be for CCS 3.3, but they may be use...
posted by Mike Dunn on Nov 12 2007 under TMS320C6x | Basics | Tips and Tricks Comments (3) |
Least-squares magic bullets? The Moore-Penrose Pseudoinverse
Hello, the topic of this brief article is a tool that can be applied to a variety of problems: The Moore-Penrose Pseudoinverse.While maybe not exactly a magic bullet, it gives us least-squares optima...
posted by Markus Nentwig on Oct 24 2010 under Matlab | Basics | Tips and Tricks Comments (5) |
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 (4) |
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) |
Frequency Dependence in Free Space Propagation
IntroductionIt seems to be fairly common knowledge, even among practicing professionals, that the efficiency of propagation of wireless signals is frequency dependent. Generally it is believed that lo...
posted by Eric Jacobsen on May 14 2008 under Basics | Wireless | Communication Comments (4) |
Of Forests and Trees and DSP
When Stephane invited me to write a blog for dsprelated.com I immediately came up with a flood of ideas for highly detailed, technical, narrowly focused articles related to the intersection of ...
posted by Tim Wescott on Feb 10 2008 under Basics | Design Methodolgies Comments (1) |