A visualization of how the fourier transform maps into the complex plane with an amusing application.

Expanding on the program developed in the last post by adding a UI, some new features, and performance improvements.

There are some really nice tools out there for making use of SDR devices. I've personally been using gnuradio to get a better sense of how various modulation and filtering techniques work on real-world signals. Lately, however, I've been feeling the itch to dive more into the details and implement some of these techniques from scratch. In this article, I'll write a basic FM demodulator in C that can be used to listen to FM radio from an RTLSDR device.

Using WebGL Fragment Shaders to draw a fractal on a canvas

Reducing the number of colors in an image to make it look like some of the late 90' graphics I remember growing up.