=) After 4 weeks while I was off from trainings I return to a climbing gym.



But geek part of me still alive) I found very useful archive of articles of the section GNSS Solutions in the InsideGNSS magazine. It's real usefull for everyone who works with GPS SDR. They have articles about theory and practice as well.

Now I have some tasks. TODO:
1) understand how to intercept a voice in android like this GSM-intercepter-speaker/microphone

2) investigate ability of implementing GPS SDR on python with GUI as reference receiver.

3) Finish book about neuro networks and start "Hacker delights"

Software Defined Receiver (SDR) for GPS

SDR it's a very popular thing today. I have one project with GPS and need reference SDR for compare. I have git repo with some

Many of them on C/C++ (not so cool to implement POC code on C/C++). But I found one on python

The main idea on python that you can use multithread application with pretty GUI with good library scipy (matrix operation, filters and many other tasty things). You cant get all this things on Octave or Scilab. If you have Matlab you need multithread toolbox aswell. It's very interesting to have tool where one can relatively simple implement his/her idea and integrate it in the current project. I need some time to investigate this project on python and maybe I'll write some more words about this. I want also reimplement my Octave sources with python. It's very interesting to have working SDR with UI and module structure to change modules from one to another (acquire module or tracking module, etc)

BTW if you have some more, plz write me few lines with email or in comments.

Include into assembler files .h files with definitions

This very general question how to incorporate C and Assembler. Bcoz sometimes you have many C sources and headers and you need rewrite something on assembler. Everybody knows about inline assembler in gcc. But not many knows that you can write into assembler and include some of required .h files. Linux kernel has some examples, but they not easy to look. I found some good explanation on ARM site [1] and adopt it for gcc

Laptop battery status in a prompt

I found sometime ago very usefull script for showing laptop battery status in a terminal. As I dont like huge xmanagers (KDE and Gnome and...) and using fluxbox this script was real for me. But time run fast and now all acpi things are moved from procfs to sysfs. I bought used laptop on ebay and found this old script in my old hdd backup directory. Fix it for a little add bashrc sample and it's run again.

custom malloc

link for me)
http://altdevblogaday.com/2011/02/12/alternatives-to-malloc-and-new/

one week vacation

I spent my vacation near the Finland border, 60 km from Vyborg - Triangular lake. It's very famous place for Russian climbers. Few days in a tent with camping cooking. It was fine and I made some good ascent, I made my first 6b+ flash and some other. Not so much, but I more bouldering climber than sport routes climber. Try to solve it in next season. Dont have any pic with my on a route, add pic with my friend on 6c, he made it onsight.

Real Signal Complex Noise (RSCN) - SNR estimation algorithm

I found one very cool article about SNR estimation in the GPS (BPSK DS-SS signals).

I implemented the RSCN algo (code in octave it may changes bcoz it's link to the my work vcs and this realisation is test, I'll stabilize the code later). The description of this algo you can find in [1, 2, 3]. The [1] is the simplest article from all others ([2, 3]). And in the [3] authors tell that this algo is very sensitive to phase. And it's pretty simple to look. For example we have GPS fronend MAX2769, 16.368Mhz is sampling freq.