5 hours in the lab today... - Page 1
Forum section: electronics / general

author: slateraptor
author_rank: Frequent Contributor
timestamp: October 27, 2011, 05:21:42 am
content: ...trying to work out a relatively simple 3rd-order state space representation from first principles only to hit a brick wall again and again and again. Then on the 10 minute bus ride home it hit me.Now, I'm trying to figure out how to punish myself for being such an idiot.

author: Achilles
author_rank: Regular Contributor
timestamp: October 27, 2011, 07:33:00 am
content: Quote from: slateraptor on October 27, 2011, 05:21:42 amWell, I don't give any comments on sexual preferences..........No Honestly, I think everyone has that from time to time. I think it's more a problem that you force yourself to find a quick solution soon and think what to do and if it works. So you get used to a schematic that runs through your brain. If the solution is a bit apart from that you won't find it because you fix on another thing.Don't know how often I thought "Well, why didn't I try that early.....quite obvious".If you really want to punish yourself I would suggest a warm instead an ice cold beer after work

author: Mechatrommer
author_rank: Super Contributor
timestamp: October 27, 2011, 10:44:31 am
content: brain will process better when its defragmented, ie rest, so dont overlook it. when everything you do giving you bad result, then you should know what to do.

author: hacklordsniper
author_rank: Frequent Contributor
timestamp: October 27, 2011, 11:01:04 am
content: Sometimes a solution will be visible in few moments if you learn to think "out of the box"

author: Neilm
author_rank: Super Contributor
timestamp: October 27, 2011, 05:37:10 pm
content: If I'm stuck at something, I put on some relaxing music and close my eyes to think it through. (Well, that's what I tell my boss.)Neil

author: djsb
author_rank: Super Contributor
timestamp: October 27, 2011, 07:38:28 pm
content: Whats a 3rd-order state space representation?David

author: Flavour Flave
author_rank: Regular Contributor
timestamp: October 27, 2011, 08:21:31 pm
content: Quote from: slateraptor on October 27, 2011, 05:21:42 amIs it for a Kalman filter?

author: slateraptor
author_rank: Frequent Contributor
timestamp: October 27, 2011, 08:48:35 pm
content: Quote from: hacklordsniper on October 27, 2011, 11:01:04 amI general, yes, but this was one of those situations where deviating from a clearly defined basis would result in a convoluted disaster of sorts.Quote from: Flavour Flave on October 27, 2011, 08:21:31 pmNo, it was purely academic in nature. Although Prof. Kalman was once faculty at my university.Too bad I won't have an opportunity to learn state variable methods at the graduate level from one of his PhD students (Prof. Pramod Khargonekar, who is current faculty and former dean of our College of Engineering).

author: slateraptor
author_rank: Frequent Contributor
timestamp: October 27, 2011, 09:02:35 pm
content: Quote from: djsb on October 27, 2011, 07:38:28 pmhttp://en.wikipedia.org/wiki/State_space_%28controls%29Beyond the first paragraph, you'll need a strong background in differential equations, linear algebra, and upper-division electrical engineering fundamentals with respect to control theory and signals/systems. Tread with caution.

author: Zad
author_rank: Super Contributor
timestamp: October 28, 2011, 04:12:37 am
content: I think the expression is "couldn't see the wood for the trees".

author: Conrad Hoffman
author_rank: Super Contributor
timestamp: October 28, 2011, 02:20:04 pm
content: Mental defragmenter = beer

author: bilko
author_rank: Frequent Contributor
timestamp: October 28, 2011, 02:33:54 pm
content: Quote from: Conrad Hoffman on October 28, 2011, 02:20:04 pmWorks for me too!

author: vk6zgo
author_rank: Super Contributor
timestamp: October 30, 2011, 03:26:56 am
content: Quote from: slateraptor on October 27, 2011, 09:02:35 pmIn other words,it is a design tool,like every other design tool!VK6ZGO