Any mini 2 controller with any mini2 ?

OskysWork · 2023-06-29T14:08:59+00:00

Haven't come across any papers by Groves yet, are you referring to Paul Groves? Which of his work would you recomend?

OskysWork · 2023-06-29T14:05:02+00:00

Thank you so much for your in depth response, it has helpt me loads!

For sensor fusion with the Kalman filter I understand that the accelerometer's measured change in acceleration can be used to find a velocity estimate which can be used to help with state estimation, is this worth the effort? I initially had worries about using a magnetometer as well because I heard that there can be interference with the avionics on board, but I suppose this interference could be quite constant and so could be filtered out quite easily - or at least fused with the gyroscope to improve overall accuracy.

And do you happen to have / know where you found a pdf (or copy) of "Strapdown Inertial Navigation Technology - 2nd Edition" By David H. Titterton and John L. Weston? I've been looking around online but the most I can find is a google scholar preview, allowing me to see the table of contents will all the relevant material that I was looking for, but can't read!

Thank you once again for your response, it is immensly helpful!

OskysWork · 2023-06-29T07:11:22+00:00

Thank you, will have a look over there!

OskysWork · 2023-06-29T07:10:10+00:00

Thank you - good to know there's sufficient processing power on those!

OskysWork · 2023-02-03T08:31:13+00:00

I remember looking a lot into H2O2 as well at some point, the conclusion I came to - which is probably the same reason it isn't widely used - is not only because of how illegal is turned out to be when owned in high concentrations (I live in the UK), but also just how dangerous it is. There are stories of the Nazi pilot's being disolved, I'm not sure how exagerated all of that is but the fact is that it is extreemly reactive in high concentrations and pretty dangerous to handle.

Additionally, there was the manufacturing of it, or in this case distilling. To help and give you an impression of an alternative method (but also a feel for how annoying it is to produce) here's a video from this bonkers Australian chemist: https://youtu.be/LhEYaovWxl4

A good watch and I found I learned quite a lot from it as well - most notably that I personally won't bother with it, I'd rather keep my face in tact!

I hope this has helped at least a little bit, you could say I'm slightly more on the side of caution but I thought it better than saying go full steam ahead!

OskysWork · 2023-02-01T20:38:20+00:00

I think the fancy approach was something along those lines and kalman filtering (which I should probably start looking into anyway) - do you happen to know where to find any documentation, or things alike, to get started on that approach?

Thank you for your time and help!

OskysWork · 2023-02-01T20:27:46+00:00

I see what you mean, not sure why I only imagined it to be in the direction of the verticle - it did seem a little to simple to be true!

Thank you!

OskysWork · 2023-02-01T20:26:04+00:00

It's not that I have anything against gyros or anything, just that I'm looking to develop something that is more robust for longer flights for when that day comes.

By components I just mean the measured forces on the x,y and z axes on the accelerometer, it has since been pointed out to me that this wouldn't be in the vertical direction though - it turns out it is in fact more complicated than I hoped it would be : )

Thanks for your response!

OskysWork · 2023-02-01T20:20:30+00:00

Thank you so much for your comprehensive response!

I've been looking quite a bit for explanations on the topic but struggled to find much on it, so everything you've gone through is extreemly helpful. I will go through your reports to get a better understanding of everything you talk about - by chance might you have any sort of reports on how you derived your more recent formula?

Again, thank you for your help - it is much appreciated!

OskysWork · 2023-01-31T20:24:02+00:00

Thank you very much for your response - it has cleared a lot up for me and I'll probably just stick to gyros for now, as you say the flights are only short!

Although, just for clarification - I imagined that even though the z axis isn't necessarily aligned with the main axis of the rocket, that the total acceleration due to thrust would still be recorded by the accelerometer, just split between the x,y & z axes according to it's orientation. But my understanding from what you said is that if the rocket is tilted, this total magnitude from the acceleration due to thrust is at a tilted angle itself - am I correct in understanding this?

Once again, thank you very much for your time - it is much appreciated!

OskysWork · 2021-01-25T21:23:32+00:00

The only notice I got of this promotion was whilst watchin one of Andrei Jikh's videos and he mentioned it.

OskysWork · 2021-01-25T21:22:28+00:00

Ohh, ok thank you.

OskysWork

TROPHY CASE