<_Sync_>
I bet you can prod at it and get fullspeed
<speedevil>
_Sync_: it depends - it seems unlikely that it's going to be intentionally configurabe
<speedevil>
From memory, there is unlimited fines, and actual jailtime if it's possible.
<speedevil>
>9FPS - and especially >60FPS IR imagers are _heavily_ regulated.
<speedevil>
Because they are really, really useful for making things go bang
<mrdata>
wth
<mrdata>
jailtime for what?
<mrdata>
what goes bang, and why
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<speedevil>
IR cameras.
<speedevil>
They are heavily regulated under ITAR
<speedevil>
as they're very useful for making homing missiles
<_Sync_>
well, I don't think it is not configurable
<_Sync_>
even the E4 has a 60fps sensor and barfs that out if you get rid of the flir fpga
<speedevil>
_Sync_: yes - but you may need to open it up and hack the sensor - which is conisderably more difficult with the lepton
<speedevil>
as it's a bare die laminated on the FPGA
<_Sync_>
yeah but I know how chip development works
<_Sync_>
so I highly doubt they actually burn it in ther hard
<speedevil>
I'm not saying they do.
<speedevil>
just that the package may make it very, very awkward to get to
<speedevil>
however - there is a grid of ~9 pins at .1mm spacing that look interesting on the bottomof the imager
<speedevil>
.2
<speedevil>
it also depends on the FPGA security
<_Sync_>
well, in the end it is all bullshit because if somebody wants to get modern ir homing missiles they are going to buy them off the russians
<speedevil>
Indeed.
<speedevil>
I mean - I could have a damn good stab at building a delimited GPS with $30 worth of parts - tops.
<_Sync_>
itar was supposed to help at all but in the end nobody that *actually* wants parts that are itar regulated has no issues buying them
<speedevil>
+-10km/s at least - none of this 'under 1000 knots AND 60000ft
<speedevil>
It does depend - I mean ITAR also regulates nuclear stuff
<_Sync_>
I built andrew holmes gps last year
<speedevil>
I was meaning something rather simpler
<speedevil>
max* GPS chip which digitises the GPS band and feeds you an 18 megabit serial stream
<speedevil>
small ARM microcontroller
<_Sync_>
oh the ublox will send you a stream even if you are outside it's limits?
<_Sync_>
~its
<speedevil>
no
<speedevil>
maxim
<speedevil>
it is basically a dumb 1 bit ADC with some nice filters
<_Sync_>
ah
<_Sync_>
you want to sample the gps directly
<_Sync_>
well
<_Sync_>
yeah
<speedevil>
modern processors are quite fast - and even with general purpose ones bitmasking and self-modifying code let you do correlation quite well.
<speedevil>
Especially if you know about FFT for the initial lock
<speedevil>
it gets _lots_ easier if you don't have to deal with 'urban canyon' or indoor conditions too.
<_Sync_>
I'm actually suprised how well the telit gps/gnss engine we use at works can fuse the two
<_Sync_>
the positions are very accurate
<speedevil>
The amount of time you need to spend sampling the GPS signal to maintain lock can be very, very small. (you need a predictable bit-edge of a nav-message every time you may drift 20ms or so, and you can cheat as multiple satellites in view let you sample multiple time periods at once.
<speedevil>
this can - even with generic hw - do _dramatic- power savings over commercially available stuff
<speedevil>
but it doesn't work in poor signal conditions