The other day, I was taking a look at the latest list of the ten most read articles in the IEEE Journal of Selected Topics in Signal Processing , the IEEE Signal Processing Letters and the IEEE Transactions on Signal Processing. The lists have a notable number of papers on Compressive Sensing (or also called Compressive Sampling). This means that this is perhaps the hottest research topic in signal processing these days.

Because of this, I set myself to write a post to explain the basics of this relatively new technique. Luckily, I found publicly available these excellent lecture notes by Richard Baraniuk at the IEEE Signal Processing Magazine. For those who want an overview, the first page should suffice to get that, but I’d recommend to read it all. Also, there is a short tutorial by Michael Lamoureux that works as a nice complement to Baraniuk’s lecture notes.

Finally, there is a blog, called the Nuit Blanche blog, that is mostly dedicated to compressive sensing, and the very complete and useful webpage on compressive sensing resources at Rice University.

Enjoy.

This post is not exclusively related to DSP but I have come across an interesting site that could be useful to anybody doing research. The site is citeulike and,  as the name says, is a site dedicated to managing bibliographical references. The idea of citeulike  is similar to other web 2.0 sites dedicated to managing bookmarks. In this case, it is possible to create groups based on a topic of interest which can then be used to organize a list of papers (each with its corresponding link to thedocument itself) that can be shared by a research group. Groups also have available discussion forums  and blogs that could be very helpful when organizing research within a group.The citations for each paper can be directly imported from many popular research sites, and they can later be exported to BibTex format.

It’s interesting that in my last post I kind of complained of the few blogs about DSP. Well, I was brought to the attention of a nice ore year blog about DSP applied to communications. The name of the blog is “DSP log” and it lives at http://www.dsplog.com/. The main goal of this blog is to explain concepts in digital communications and DSP at the level of a text book. Manyexplanations are illustrated with octave scripts. Some of the recent topics where Frequency offset estimation using 802.11a short preamble, Peak to Average Power Ratio for OFDM and Cyclic prefix in Orthogonal Frequency Division Multiplexing.

One of the reasons why I started this blog is that there are not many comprehensive web sites exclusively dedicated to DSP. One exception to this is the DSPrelated web site (http://www.dsprelated.com/). This site offers many useful resources such as the discussion groups, a web interface to the comp.dsp usenet news group, a sizeble list of DSP related links, books reviews, etc. Certainly, it is a site worth visiting regularly.