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Our satellite team in college used GNURadio to modulate and demodulate our radio signals, and to automate the entire pass (in conjunction with our mission opera
by idealmedtech 5y ago
Our satellite team in college used GNURadio to modulate and demodulate our radio signals, and to automate the entire pass (in conjunction with our mission operations team). I remember at that time (2016-2018), there was an absolute dearth of information on something as simple as demodulating GMSK, much less OQPSK. The given blocks for these modulation types never worked, so we had to build out custom blocks in C++ to have a chance at interacting with an actual spacecraft in flight (with all the goodies like active Doppler compensation etc)
- CapricornNoble 5y agoI did my masters thesis with GNURadio 2013-2016 (a frequency-hopping implementation). I often thought my struggles were 100% my own incompetence, but eventually realized it was possibly 50% buggy GNURadio blocks. So much potential in SDRs but damn was this software an opaque mess to use.
- idealmedtech 5y agoThere was a time where I could point to specific implementations in GNURadios source that were very buggy (lots of uninitialized memory assumed to be zeroed), but alas, it's been lost from my memory.