" maner?
Olivier
- Original Message -
From:
Olivier Soussiel
To: FlightGear
Sent: Friday, November 12, 2004 1:33
AM
Subject: [Flightgear-devel] Real flight
playback with FG,based on recorded GPS data
I finallely ended up using a Kalman filter to
enhanc
I finallely ended up using a Kalman filter to
enhance Pitch and Roll restitution for real flight playback,
based on GPS data.
I used the open source Bayesian Filtering Classes :
Bayes++, in conjunction with Boost for the linear algebra part. Both are
excellent libraries, for more details
"Curtis L. Olson" wrote:
> Martin Spott wrote:
> Yes, I've heard that the lower end IMU stuff (i.e. < $100,000) is pretty
> bad in terms of fine grained accuracy ...
There are two steps between solid-state- and $100k IMU's. _Simple_
FOG's (Fibre Optic Gyros) ($6k at X-Bow) translate a "moving pi
Martin Spott wrote:
[ autopilot.sf.net ]
Yes, they've hovered a heli. Even though this is already a difficult
task not only for a 'manual' pilot but also for a computer, this is by
far not sufficient for my needs. I need the computer to stabilize the
heli in situations where the demands go beyond t
"Curtis L. Olson" wrote:
> Martin Spott wrote:
> >If you spend $6k at X-Bow you already get a FOG-based IMU. This is the
> >sort of things I was looking at for my partially autonomous heli (see
> >below), but this sort of equipment out of the price range I can pay.
>
> Yeah, that's pretty tough f
David Megginson wrote:
It would give you a very rough, slightly slipping turn, I'd think.
There'd be a risk of a snap roll (and possible spin) at slower speeds,
if you got to the point that one of the wings stalled.
That should have been a "skidding" turn.
All the best,
David
--
Majority rule on
Curtis L. Olson wrote:
The question is, with an auto-pilot forcing the wings level, how
effective would rudder only steering be. I'm guessing not all that
effective, but at R/C scales is it effective enough to control heading
and self navigate?
It would give you a very rough, slightly slipping
Curtis L. Olson writes:
>
> Not quite. The co-pilot does one thing (but one thing well from what I
> read). It keeps itself level with the horizon. That's it. It has no
> gyros. It fits inline between your receiver and your servos. So as I
> understand it, it will only kick in when you
David Megginson wrote:
Curtis L. Olson wrote:
Exactly! I'm trying to decide if I want to mount the IR sensor on
some sort of gimble and vary the sensor attitude to control the
aircraft attitude, or do I just want to hard mount the sensor and try
and steer with the rudder while the copilot fight
Curtis L. Olson wrote:
Exactly! I'm trying to decide if I want to mount the IR sensor on some
sort of gimble and vary the sensor attitude to control the aircraft
attitude, or do I just want to hard mount the sensor and try and steer
with the rudder while the copilot fights to keep the wings lev
Martin Spott wrote:
If you spend $6k at X-Bow you already get a FOG-based IMU. This is the
sort of things I was looking at for my partially autonomous heli (see
below), but this sort of equipment out of the price range I can pay.
Yeah, that's pretty tough for most people's home budget. I imagin
Norman Vine wrote:
Yup, using 3 differential GPS units has become a 'standard' way of doing this
http://www.fig.net/pub/proceedings/korea/full-papers/pdf/session17/stathas-karabelas-liapakis-psarianos-kontaratos.pdf
http://waas.stanford.edu/~wwu/papers/gps/PDF/DeLorenzoIEEEPLANS04.pdf
Cool, the
Curtis L. Olson writes:
>
> Mat Churchill wrote:
>
> >Hoping to pick up on flying lessons again and was wondering if I can
> >record NMEA flight data of my lessons and play it back in FG ?
> >To add to this does anyone know of a way of recording bank angle / glide
> >path in a format usable by FG
"Curtis L. Olson" wrote:
> If you look around (u-nav.com, micropilot.com, etc.) there are a number
> of companies out there making IMU solutions that hit several different
> price ranges (and presumably a large range of quality/accuracy.) This
> is an area where you get what you pay for. And
Mat Churchill wrote:
Hoping to pick up on flying lessons again and was wondering if I can
record NMEA flight data of my lessons and play it back in FG ?
To add to this does anyone know of a way of recording bank angle / glide
path in a format usable by FG ?
Playback of real flights would be a nice
Mat Churchill wrote:
Hoping to pick up on flying lessons again and was wondering if I can
record NMEA flight data of my lessons and play it back in FG ?
To add to this does anyone know of a way of recording bank angle / glide
path in a format usable by FG ?
Playback of real flights would be a nice
On Fri, 09 Jul 2004 09:34:04 +0100, Mat wrote in message
<[EMAIL PROTECTED]>:
> Hi All,
>
> Hoping to pick up on flying lessons again and was wondering if I can
> record NMEA flight data of my lessons and play it back in FG ?
..oughtta work. Some gps gear also record static air pressure and
te
Hi All,
Hoping to pick up on flying lessons again and was wondering if I can
record NMEA flight data of my lessons and play it back in FG ?
To add to this does anyone know of a way of recording bank angle / glide
path in a format usable by FG ?
Playback of real flights would be a nice feature.
Be
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