mjb/altos, branch plot-gps-heightAltOS - the operating system for Altus Metrum products
https://git.ethernal.org/mjb/altos/atom?h=plot-gps-height2013-01-19T07:00:20+00:00Add GPS height to the usual plot2013-01-19T07:00:20+00:00Keith Packardkeithp@keithp.com2013-01-16T23:19:51+00:00urn:sha1:f4fa8a4e93e17f19d15ef108f6e0c81b7a83cc04
This lets us compare the GPS height data to the barometric height data
Signed-off-by: Keith Packard <keithp@keithp.com>
Tag version 1.1.9.32013-01-19T05:53:54+00:00Keith Packardkeithp@keithp.com2013-01-19T05:53:54+00:00urn:sha1:4646beb421ab5bec612dfe5e3c57e790b1f41203
Signed-off-by: Keith Packard <keithp@keithp.com>
micropeak: Fetch Mac and Windows drivers when creating packages2013-01-17T18:41:22+00:00Keith Packardkeithp@keithp.com2013-01-17T06:05:32+00:00urn:sha1:ce3c9e6be6fde51fb02d692f1ef1222fb5ada8c9
This downloads the FTDI drivers from FTDI during the build process
Signed-off-by: Keith Packard <keithp@keithp.com>
micropeak: Show decimeters in stats window2013-01-16T23:21:24+00:00Keith Packardkeithp@keithp.com2013-01-16T23:18:31+00:00urn:sha1:bd84dfd8e53d8939281993e062015f67c0dd9fa2
We're promising this kindof accuracy, so we'd best show it off
Signed-off-by: Keith Packard <keithp@keithp.com>
altos: Add Kalman filter to MicroPeak2013-01-16T23:21:24+00:00Keith Packardkeithp@keithp.com2013-01-16T23:15:49+00:00urn:sha1:540309240a8515116120dbd4403902282ed8c27b
This filters altitudes more accurately and also allows tracking of
acceleration, which is used to discard height data generated by
ejection charge noise
Signed-off-by: Keith Packard <keithp@keithp.com>
altos: Add computation of MicroPeak Kalman correction coefficients2013-01-16T23:21:24+00:00Keith Packardkeithp@keithp.com2013-01-16T23:13:31+00:00urn:sha1:249ee968305ae6e8fcf0a10e5cf9cc5826bd81dd
Signed-off-by: Keith Packard <keithp@keithp.com>
altos: Correct model error covariance matrix2013-01-16T23:21:24+00:00Keith Packardkeithp@keithp.com2013-01-16T23:01:12+00:00urn:sha1:dd60d85d07b881ac03294a8cf607e469f2e69610
Finally found a couple of decent references on how to set the model
(process) error covariance matrix. The current process matrix turns
out to be correct for a continuous kalman filter (which isn't
realizable, of course). For a discrete filter, the error in modeled
acceleration (we model it as a constant) needs to be propogated to the
speed and position portions of the matrix.
The correct matrix is seen in this paper:
On Reduced-Order Kalman Filters For GPS Position Filtering
J. Shima
6/2/2001
This references an older paper which is supposed to describe the
derivation of the matrix:
Singer, R.A., “Estimating Optimal Tracking Filter Performance for Manned Maneuvering Targets,”
IEEE Transactions of Aerospace and Electronic Systems, AES-5, July 1970, pp. 473-483.
This change has a minor effect on the computed correction
coefficients; it should respond more reasonably to acceleration
changes now.
Signed-off-by: Keith Packard <keithp@keithp.com>
doc: Add simplesect headers to release notes2013-01-16T18:38:52+00:00Keith Packardkeithp@keithp.com2013-01-16T18:37:55+00:00urn:sha1:994ff76a064dcbd3113db771cd9cd9591fd68dea
This makes it easy to see which changes are from each version of the software.
Signed-off-by: Keith Packard <keithp@keithp.com>
document what the 'Age' value in the AltosUI display means2013-01-16T17:46:52+00:00Bdale Garbeebdale@gag.com2013-01-16T17:46:04+00:00urn:sha1:f64fe671b7b4e2389219d672bcea978d0539d4aeMerge branch 'master' of ssh://git.gag.com/scm/git/fw/altos2013-01-12T17:57:22+00:00Bdale Garbeebdale@gag.com2013-01-12T17:57:22+00:00urn:sha1:670034eef48d63cdaec8d271fa93da984ffe2ea9