ac2cz
commented
4 years ago You might be able to use FoxTelem depending on the telemetry format that you are using. If you are using something that matches the Fox series of spacecraft then it will be relatively easy. If you are using a very different format then you will likely need to fork the code and build some additional functionality.
I see that you are using FSK at 1200bps. We have 200bps and 9600bps with 8b10b line encoding and a 10 or 31 bit sync word between frames. We use one or more RS words for the RS forward error correction.
I looked up some of the details of your format in the repo. I see you are using a 64 bit sync word: 0x1ACFFC1D. We use a 31 bit sync word: 0x47cd215d, but that should be ok. Are you using 64 bits because of the very short frames?
I did not see any mention of line encoding. We use 8b10b for DC balance. Others approaches use convolution coding or a scrambler. You need something to make sure you have an even number of 1s and 0s so that the clock can be recovered. 8b10b and convolution coding also have the advantage that they detect corrupt bytes and this can be fed into the RS Decoder, doubling the number of errors that you can correct.
Give me some more details of your format and we can go from there.
On Sun, Jul 19, 2020 at 2:36 PM rnbokade notifications@github.com wrote:
We the students of K.J.Somaiya Institute of Engineering and Information Technology, Sion Mumbai are developing a student nano-satellite called BeliefSat-1. It has amateur digipeater and a ssdv camera downlink. Main aim is to promote amateur radio, space tech and rf as a domain among students in India and even around the world. You can find info about it on Our official repo https://github.com/newleapkjsieit/beliefsat. Please guide us on the process of adding the satellite support in your software. If it can't be added in the main software, how can we fork the software and environment to make own version for the sat. Also if you can add support for it then it will be great if you can add it in a seperate branch so that we can test the build and do end-to-end testing of the satellite using your soft at recieving side and make sure everything works well even before the launch.
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rnbokade
We the students of K.J.Somaiya Institute of Engineering and Information Technology, Sion Mumbai are developing a student nano-satellite called BeliefSat-1. It has amateur digipeater and a ssdv camera downlink. Main aim is to promote amateur radio, space tech and rf as a domain among students in India and even around the world. You can find info about it on Our official repo. Please guide us on the process of adding the satellite support in your software. If it can't be added in the main software, how can we fork the software and environment to make own version for the sat. Also if you can add support for it then it will be great if you can add it in a seperate branch so that we can test the build and do end-to-end testing of the satellite using your soft at recieving side and make sure everything works well even before the launch.