Model Rocket Electronics (Kalman Filter)
This is the electronics system that will go aboard the next rocket we build for next year's UKRoC competition. It uses a different altimeter to the old system, the MS5611 as opposed to the MPL3115A2. This new altimeter has a far greater rate of output, and a similar accuracy, to the old altimeter. The software also differs. In this program we have implemented a basic Kalman filter which reduces the innacuracy of the altitude data. This means that the accuracy of the data is now 0.05m as opposed to 1m. I will further adapt the Kalman filter, making it more complex, so that it will take into account it's speed when filtering, i.e. it will work better in flight, rather than being stationary on the ground. This is a massive improvement over the previous system, with a 60Hz refresh, 0.05m and 0.2m/s accuracy, compared with the old system's 2Hz refresh, 1m and 5m/s accuracy. This will allow us to make predictions in flight as to when to deploy the parachute in order to reach the target altitude more accurately and rapidly than ever before. In theory, we should be able to get a 5cm accuracy on the altitude reached. Overall, a 15,000x improvement over the previous system. I will paste a link to the code soon.

 Rocketry Club: Tripoli Wisconsin

Author Pupudski
Duration 195 seconds

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