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Author Topic: Guidance  (Read 13492 times)
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Steve - WB3HUZ
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« on: May 27, 2008, 11:12:39 PM »
The missile knows where it is at all times. It knows this because it knows where it isn't. By subtracting where it is from where it isn't, or where it isn't from where it is (whichever is greater), it obtains a difference, or deviation. The guidance subsystem uses deviations to generate corrective commands to drive the missile from a position where it is to a position where it isn't, and arriving at a position where it wasn't, it now is. Consequently, the position where it is, is now the position that it wasn't, and it follows that the position that it was, is now the position that it isn't.

In the event that the position that it is in is not the position that it wasn't, the system has acquired a variation, the variation being the difference between where the missile is, and where it wasn't. If variation is considered to be a significant factor, it too may be corrected by the GEA. However, the missile must also know where it was.

The missile guidance computer scenario works as follows. Because a variation has modified some of the information the missile has obtained, it is not sure just where it is. However, it is sure where it isn't, within reason, and it knows where it was. It now subtracts where it should be from where it wasn't, or vice-versa, and by differentiating this from the algebraic sum of where it shouldn't be, and where it was, it is able to obtain the deviation and its variation, which is called error.
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WD8BIL
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« Reply #1 on: May 28, 2008, 07:18:11 AM »
At least it knows where it is going.
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The Slab Bacon
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« Reply #2 on: May 28, 2008, 07:20:50 AM »
YEA, WHAT HE SAID?? Huh Huh Grin Grin

BUT THEN IT BECOMES A MISGUIDED MISSLE!!
(not to be confused with a misguided muscle)  Grin Grin


But I just stopped in to se what condition my condition was in Cool

                                                             The Slab bacon
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"No is not an answer and failure is not an option!"
W3RSW
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Rick & "Roosevelt"
« Reply #3 on: May 28, 2008, 08:32:08 AM »
Working from the inside out,

DR/dt = F(t) + dt - f(-dt) + mx + b /(2pi*r^2) - error1 + 8/3*error2., more or less.  This all to the 2/3 of course.

You have to keep your signs straight.

So where are you Steve?
Where am I?
Where are any of us?
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RICK  *W3RSW*
w4bfs
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more inpoot often yields more outpoot
« Reply #4 on: May 28, 2008, 08:51:47 AM »
sounds like some of the 'expert' systems I used to work on...ugh!
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Beefus

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to see ourselves as others see us.
It would from many blunders free us.         Robert Burns
Jim, W5JO
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« Reply #5 on: May 28, 2008, 09:07:30 AM »
This sounds like the logic my wife uses to drive to town.
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W3RSW
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Rick & "Roosevelt"
« Reply #6 on: May 28, 2008, 09:56:15 AM »
Yeah,
"Steering by approximation."

very jerky.....
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RICK  *W3RSW*
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"Let's go kayaking, Tommy!" - Yaz
« Reply #7 on: May 28, 2008, 10:00:15 AM »
This should clear things up:

http://asuwlink.uwyo.edu/~jimkirk/guidance.wav


For even clearer details:

http://asuwlink.uwyo.edu/~jimkirk/CAW92ZC1.wmv

T
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Rick & "Roosevelt"
« Reply #8 on: May 28, 2008, 11:25:27 AM »
You got him. Grin
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RICK  *W3RSW*
Steve - WB3HUZ
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« Reply #9 on: May 28, 2008, 11:42:49 AM »
The result.

http://www.youtube.com/watch?v=VUrMuc-ULmM&feature=related


Also Chrysler and Sun versions of the Turbo Encabulator.

http://www.youtube.com/watch?v=rLDgQg6bq7o&feature=related

http://www.youtube.com/watch?v=HVPlqPPPRS4&feature=related
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k4kyv
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Don
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« Reply #10 on: May 28, 2008, 02:32:52 PM »
A movement is accomplished in six stages
And the seventh brings return.
The seven is the number of the young light
It forms when darkness is increased by one.
Change returns success
Going and coming without error.
Action brings good fortune.
Sunset.
The time is with the month of winter solstice
When the change is due to come.
Thunder in the other course of heaven.
Things cannot be destroyed once and for all.
Change returns success
Going and coming without error.
Action brings good fortune.
Sunset, sunrise.
A movement is accomplished in six stages
And the seventh brings return.
The seven is the number of the young light
It forms when darkness is increased by one.
Change returns success
Going and coming without error.
Action brings good fortune.
Sunset, sunrise.
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Don, K4KYV                                       AMI#5
Licensed since 1959 and not happy to be back on AM...    Never got off AM in the first place.

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This message was typed using the DVORAK keyboard layout.
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Steve - WB3HUZ
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« Reply #11 on: May 28, 2008, 02:40:02 PM »
An extended version with even more BS. Too funny!

http://www.youtube.com/watch?v=lVZ8Ko-nss4&feature=related
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Carl WA1KPD
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« Reply #12 on: May 28, 2008, 03:59:52 PM »
Sounds like some people are having chemical reactions left over from the 60s....
Carl /KPD
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Carl

"Okay, gang are you ready to play radio? Are you ready to shuffle off the mortal coil of mediocrity? I am if you are." Shepherd
WA1GFZ
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« Reply #13 on: May 29, 2008, 11:42:12 AM »
I got this years ago from McAir and it could be the reason Boeing owns them today.
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W1RKW
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« Reply #14 on: May 29, 2008, 04:15:21 PM »
Quote from: wb4bfs on May 28, 2008, 08:51:47 AM
sounds like some of the 'expert' systems I used to work on...ugh!

Or government bureaucracy.
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Bob
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Home of GORT.
AF9J
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« Reply #15 on: May 31, 2008, 11:03:16 AM »
Quote from: WA1GFZ on May 29, 2008, 11:42:12 AM
I got this years ago from McAir and it could be the reason Boeing owns them today.

Ummm, wasn't Jim McDonnell into the occult (I thought I read somewhere, that's why he named all of his planes after supernatural beings)?

Ellen - AF9J
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Steve - WB3HUZ
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« Reply #16 on: June 22, 2008, 10:02:11 PM »
It's true!

* guidance.jpg (260.66 KB, 695x1024 - viewed 402 times.)
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N3DRB The Derb
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« Reply #17 on: June 23, 2008, 12:52:29 AM »
I want the operating and service manuals from the 'cone of silence' device in Get Smart.
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ka3zlr
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« Reply #18 on: June 23, 2008, 05:32:27 AM »
Why Navigate, Triangulate, LOR to the rescue... Grin
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W3SLK
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Just another member member.
« Reply #19 on: June 23, 2008, 09:13:13 AM »
Derb said:
Quote
I want the operating and service manuals from the 'cone of silence' device in Get Smart.

To hell with that. I want the logic circuits for the 'doors' leading into the office and his shoe phone with Agent 99's phone # Wink
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Mike(y)/W3SLK
Invisible airwaves crackle with life, bright antenna bristle with the energy. Emotional feedback, on timeless wavelength, bearing a gift beyond lights, almost free.... Spirit of Radio/Rush
Steve - WB3HUZ
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« Reply #20 on: June 23, 2008, 09:29:03 AM »
I'll just take Agent 99. Forget the cell phone.
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w3jn
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« Reply #21 on: June 23, 2008, 10:32:47 AM »
I'd settle for Max's red Sunbeam Tiger.
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Steve - WB3HUZ
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« Reply #22 on: June 23, 2008, 08:57:41 PM »
Heh, heh. The car held its value longer!!
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N3DRB The Derb
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« Reply #23 on: June 24, 2008, 12:28:56 AM »
ok, was agent 99 hotter than maryann on Gilligans Island?  Huh
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Rob K2CU
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« Reply #24 on: June 24, 2008, 06:39:23 AM »
Maryann was th egirl you took home to meet mom and dad. Agent 99 was the girl you did not take home to meet mom and especially not to meet dad!
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