BLAHAJ
/
has-writeup
10
2
Fork 0
Code Releases Activity

digital filters: fix code blocks

This commit is contained in:
Erin Moon 2020-05-26 05:59:09 -05:00
parent 2ea9e2145a
commit 37ced43dd1
1 changed files with 2 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
aaaa/digital-filters-meh/README.md
View File

@ -54,7 +54,7 @@ q_att = startracker(actual);
``` ```
Looking inside `startracker()`, we see that it pretty clearly indicates that we *are* the star tracker; every timestep, the code tells us, the adversary, what the true physical orientation is as a quaternion. We can act as the star tracker and send back a wxyz-format quaternion on stdin, which it will use as the star-tracker output (note that, for some reason, the code they give us uses space-separated floats and the actual challenge uses comma-separated floats): Looking inside `startracker()`, we see that it pretty clearly indicates that we *are* the star tracker; every timestep, the code tells us, the adversary, what the true physical orientation is as a quaternion. We can act as the star tracker and send back a wxyz-format quaternion on stdin, which it will use as the star-tracker output (note that, for some reason, the code they give us uses space-separated floats and the actual challenge uses comma-separated floats):
```{.matplotlib} ```{.matlab}
% Model must have a q_att member % Model must have a q_att member
function [ q ] = startracker(model) function [ q ] = startracker(model)
@ -78,7 +78,7 @@ endfunction
``` ```
Also note that in `challenge.m`, immediately after the star tracker call, checking the return value for consistency with the physical model is _commented out_. We can tell the satellite that it's pointing anywhere we like and it will believe us, although Kalman error might be bad: Also note that in `challenge.m`, immediately after the star tracker call, checking the return value for consistency with the physical model is _commented out_. We can tell the satellite that it's pointing anywhere we like and it will believe us, although Kalman error might be bad:
``` ```{.matlab}
%err = quat2eul(quat_diff(q_att, target.q_att))'; %err = quat2eul(quat_diff(q_att, target.q_att))';
%if max(abs(err)) > err_thresh %if max(abs(err)) > err_thresh
% disp("Error: No way, you are clearly lost, Star Tracker!"); % disp("Error: No way, you are clearly lost, Star Tracker!");