Nick Foster
7f6a3c7779
Return data works. Just need a reasonable way to get mlat data into the output plugins.
2012-12-19 18:57:23 -08:00
Nick Foster
3be6e9fd6e
Remove altitude-based extra station. I don't now believe there's a way to construct a "fake" station as you don't have the originating time of the transmission as a known quantity.
2012-12-11 09:44:21 -08:00
Nick Foster
c4c63b5b69
Fixed it by using a reasonable initial guess to guarantee monotonicity in the solver, and to avoid converging on the wrong solution.
...
If all your stations lie in a plane (they do), there is an ambiguity about that plane such that there are two solutions.
This means you need to provide an initial guess on the correct side of the plane (i.e., above ground).
In addition, using a very reasonable solution guarantees that the system is as linear as possible.
I'm using the nearest station as a guess; I would have assumed it would work with any station as a guess but this
doesn't appear to be the case.
The Arne Saknussemm is still broken.
2012-12-11 09:11:35 -08:00
Nick Foster
0384d6bc58
Temp commit. mlat only resolves when the aircraft is sufficiently out of plane of the receivers -- 4000km out of plane, to be exact. What gives?
2012-12-10 18:52:04 -08:00
Nick Foster
017cce7ec4
Temp commit before I rip out the relative stuff
2012-12-07 09:36:16 -08:00
Nick Foster
1f0ef143a0
Fixed your mlat bug -- you'd removed the time error column from H and it happened to work with the extra information gathered by having timestamp[0] equal to the originating time -- i.e., zero time offset.
...
There's currently a bug in the solver returning near-ground-level reports for aircraft at altitude. Also the Arne Saknussemm station doesn't work.
2012-12-06 19:17:40 -08:00
Nick Foster
c7e216bca0
mlat test now creates a cheesy moving simulated aircraft. mlat is broken though due to incorrect assumptions in the solver.
2012-12-06 13:04:11 -08:00
Nick Foster
e3ac472a1a
Move multilateration test code into mlat.py
2012-06-18 18:43:53 -07:00
Nick Foster
8522bc0b25
CMakeified almost everything. Test code in python/ and apps other than uhd_modes.py still need minor updating.
2011-12-14 10:17:16 -08:00
