Welcome to the DSP blog

My goal is to create a space for the enjoyment of DSP enthusiasts and for the dissemination of DSP-related news, ideas and technologies. I’d like this blog to help building a connected, vibrant and collaborative DSP community across the ranks of academia and industry. Because DSP technology has become pervasive and ubiquitous, keeping up-to-date will all the developments in this area is a daunting task, so please contact me with all kinds of comments, tips, information and suggestions. Andres Kwasinski



Jan
13
    
Posted by Andres in Calendar, Conferences on January-13-2008
January 20, 2008

The 5th IEEE Workshop on Sensor Array and Multi-Channel Signal Processing will take place at Darmstadt, Germany, from July 21 to July 23. The SAM Workshop is the principal IEEE conference devoted to sensor array and multi-channel signal processing.

The call for papers can be found in this link. The deadline for paper submission is January 20, 2008.



Jan
13
    
Posted by Andres in Calendar, Conferences on January-13-2008
March 30, 2008toApril 4, 2008

The 33rd International Conference on Acoustics, Speech, and Signal Processing (ICASSP) will take place between March 30 and April 4, in Las Vegas, NV, U.S.A. at the Caesars Palace, a truly spectacular location. By the way, I found the conference web page as a very nice Las Vegas-themed web page.

A list of accepted papers can be found in this link.



Jan
13
    
Posted by Andres in Calendar, Conferences on January-13-2008
April 2, 2008

The IEEE 2008 Workshop on Signal Processing Systems will take place in Washington DC, U.S.A., from Oct. 8 through Oct. 10. SiPS is a major international forum for discussion of new technology progress and innovations in the design and implementation of multimedia and telecom oriented digital signal processing systems.

The deadline for paper submission is April 2, 2008.



Jan
13
    
Posted by Andres in Calendar, Conferences on January-13-2008
February 1, 2008

The IEEE Sarnoff Symposium 2008 (in telecommunications) will take place at the  Nassau Inn, in downtown Princeton, New Jersey, U.S.A., from April 28 through April 30.

The call for papers can be found in this link. The deadline for paper submission has been extended to Feb. 1, 2008.



Jan
13
    
Posted by Andres in Calendar, Conferences on January-13-2008
February 1, 2008

The 10th International Symposium on Spread Spectrum Techniques and Applications (ISSSTA) will take place at the Hotel Savoia Regency, Bologna, Italy, from August 25 through August 28. ISSSTA 2008 will focus on the latest advances in wideband technologies, spread spectrum techniques, OFDM, MIMO, and Ultra Wideband (UWB), for both communications and navigation.

The call for papers can be found in this link. The deadline for paper submission is Feb. 1, 2008.



Jan
13
    
Posted by Andres in Calendar, Conferences on January-13-2008
April 18, 2008

The 2008 International Workshop on Multimedia Signal Processing (MMSP) will take place Oct. 8 to Oct. 10 in Cairns, Queensland, Australia.

The call for papers can be found in this link. The deadline for paper submission is Jan. 18, 2008.



Jan
13
    
Posted by Andres in Calendar, Conferences on January-13-2008
January 18, 2008

The 2008 International Conference on Image Processing (ICIP) will take place Oct. 12 to Oct. 15 in San Diego, California, U.S.A.

The call for papers can be found in this link. The deadline for paper submission is Jan. 18, 2008.



Sep
17
    
Posted by Andres in DSP Technologies on September-17-2007

DSPs operate in either fixed-point arithmetic or floating point arithmetic. In general, most of the high performance DSPs operate with fixed-point arithmetic because of different reasons that have to do with number of arithmetic instructions that can be executed per second (in many cases by parallelizing over several ALUs, power dissipation, memory use and access bandwidth, etc.). Because of this, a basic but important skill for anybody working with DSPs is to know how fixed-point arithmetic works.

One of the tricky points found at the beginning of working with fixed point arithmetic is that, although the DSP architecture determines the number of bits of the registers used for arithmetic operations, the placement of the decimal point within those bits is entirely up to the programmer’s choice. Even more, the programmer can change the placement of the decimal point from one operation to the next with no problem as long as it keeps track of where the decimal point is.

Read the rest of this entry »



Sep
16
    
Posted by Andres in Calendar, Conferences on September-16-2007
September 16, 2007toSeptember 19, 2007

The 2007 International Conference on Image Processing (ICIP) takes place this coming week (Sept. 16 to Sept. 19)  in San Antonio, TX. at the Hyatt Regency.

The technical program can be found in this link.



Sep
09
    
Posted by Andres in Blog Plans/Ideas on September-9-2007

The other day I happened to take a look at the electronic version on the IEEEXplore of the first issue of the IEEE Transactions on Information Theory. There, I noticed something that I think has been lost in current journal publications and that I have been planning for this blog. What I found, was constructive research discussion and argumentation. What I mean is the following: take for example one of the papers in the issue, written by no other than C. Shannon. In the same issue, along with the paper, you can find a review by 6 readers and the ensuing answers from Shannon. This is not exclusive to Shannon’s paper; in fact, every single paper in the issue is treated in the same way. The end result is an issue extremely instructive, dynamic and entertaining.

Today’s reality is that published research basically goes through a peer review process where it seems to me that most of the constructive and interactive discussion is tightly constrained within the authors-reviewers-AE interaction. In this process, some of the constructive comments eventually are incorporated but the later process of argumentation and intellectual exchange between the authors and the interested readers are all but missing. Why has this happened? Well, I don’t think I have the answer but I do think that the volume of submissions compounded with an obvious limitation on how much can fit in a particular journal issue have translated in long publication cycles and space being only available for new contributions. I believe that this process has removed perhaps one of the most important steps in creative research.

Some may say that conferences are the right venue for this kind of interaction but many of you who have been at conferences would agree that the audience of such interaction is limited to the relative (to the eventual number of readers of a paper) few attendees to a particular session and, even more, in general the discussions are limited to a tight timing which frequently forces the session chair to “move the conversation offline”, where it really becomes private.

In reality, I think that the answer is in the technology we have helped developed. We can first settle with the reality that printed journals have some inherent characteristics that make intellectual debate on any paper very difficult. At the same time, we can embrace the fact that some recent changes are certainly helpful. By this I mean the electronic management of the submission and revision process, as well as the electronic publication. With this, there is only one element missing, and this is a dynamic, flexible and public medium that facilitates and hosts the debate.

I think the answer is right here, in a blog. A blog can catalyze discussion by initially posting a report, a comment or a review of a paper. Then, the blog is indented for open discussion where everybody can post as comments their own contribution to the debate. In fact, even anonymity of the person posting a comment could be maintained since anybody can use an alias. Those hiding behind an alias to post erroneous or ill intentioned post will be sorted out as a natural process because the posts are public.

Whit this said, I will try to make the debate of DSP ideas an important component of this blog. I plan to start doing so by selecting published papers, commenting on them and opening the debate to anybody interested. As always, I welcome any suggestion with regards to what to cover or how to approach it. I’m aware that for this idea to work I need a critical mass of readers and comment posters and that achieving this is a long journey, but any long journey starts with a single step. Besides, I truly believe that this could turn into a valuable medium to advance DSP technology that is worth trying.