mmtis -> sdrf -> wif

It was originally http://www.mmitsforum.org/ (Modular Multifunction Information Transfer System, until 1998?)

Then it became http://www.sdrforum.org/ (Software Defined Radio, 1999-2009)

And as of yesterday it’s http://www.wirelessinnovation.org/ (which is broken!)

 

Too many dependencies in GnuRadio

Here’s today’s rant by David A. Burgess against the fact that there are too many external dependencies in GNU Radio, making portability difficult.

 

JTRS program shutting down?

Not included in the USAF 5-year budget plan

 

duct tape programmers

http://www.joelonsoftware.com/items/2009/09/23.html

another abstraction layer, anyone?

 

Privacy is a desirable marketing option

Harald Welte uses the following as his email signature:

“Privacy in residential applications is a desirable marketing option.”
(ETSI EN 300 175-7 Ch. A6)

I have confirmed its existence in the document!

 

numpy, lapack, blas, atlas

python-numpy → liblapack3gf → libblas3gf → libatlas3gf

References:

• http://numpy.scipy.org/ (Numerical Python)
• http://www.netlib.org/lapack/ (Linear Algebra Package)
• http://www.netlib.org/blas/ (Basic Linear Algebra Subprograms)
• http://math-atlas.sourceforge.net/ (Automatically Tuned Linear Algebra Software)

 

jtrs news

1. Harris delivers 100.000th AN/PRC-152 radio: http://www.harris.com/view_pressrelease.asp?act=lookup&pr_id=2801.
   It can do SINCGARS, VHF/UHF AM and FM, HAVE_QUICK, APCO-25, Satellite.
2. Calit2 have ported the FM3TR waveform from “an existing implementation” (???) to the SDR-4000 in 4 months: http://www.calit2.net/newsroom/release.php?id=1557
3. List of Waveforms available by/for Spectrum: http://www.spectrumsignal.com/products/waveforms/waveforms.asp
4. The JTRS “Open IR” project: http://gforge.calit2.net/gf/project/jtrs_open_ir/

 

passive radar

Interesting!

• http://comsec.com/gnuradio-project-2006.html
• http://events.ccc.de/congress/2005/fahrplan/attachments/673-slides-passive-radar.pdf

 

Negative frequencies

A good explanation of the concept of negative frequencies:

http://www.dsprelated.com/dspbooks/mdft/Positive_Negative_Frequencies.html

Wikipedia is also doing a pretty good job:

http://en.wikipedia.org/wiki/Negative_frequency

 

threat analysis of gnu software radio

A 2005 paper on memory protection for GnuRadio:

http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.60.6990

http://srg.cs.uiuc.edu/swradio/threat_wwc05.pdf

I thought all modern operating systems already have memory protection, not to mention address space randomisation, etc