Rereading your comment, I think I may have slightly misunderstood what you were saying. If you have produced a digital signal by sampling an analogue one (i.e. if you look at the values of a signal at various points) over a finite, the DFT (or the FFT as its most popular algorithm) will not tell you what the fundamental frequency is.
You can get an approximation by making assumptions about the nature of the signals that you sample, but this is not the best way to do it, and those assumptions are normally that the signal contains frequencies in a range only half the sample rate.
"Sit down and work out the maths" is really just code for "here's one I prepared earlier". If you're keen on this sort of thing, read a bit about solving systems of linear equations, and you will hopefully be able to look at the problem, exclaim "this is trivial!" and live forever happy in the knowledge that it is indeed theoretically soluble (as I tried to describe above) without having to concern ones self with the computational subtleties that suck all of the fun out of it.
MIT OCW have a set of videos on linear algebra if your curiosity is sufficient to justify chewing up some time on it. Probably some of the most useful partially-post-high-school maths that one can learn. Here is a free textbook on it.
In the DFT case the signal is merely a finite number of samples, so you can forget about the time-dependence and look at it as a long vector. If you sit down and work out the maths, you find that the vectors corresponding to the constant function and the various sinusoids are linearly independent.
All you're really doing then is solving a system of linear equations---they don't just have to be sinusoids, you could find the coefficients for any linearly independent set of functions. You could just as easily replace one of the sinusoids with an exponential function and still get coefficients out such that you could do your weighted sum of vectors and get back your original function.
The director's cut isn't by necessity worse---Blade Runner for instance had a better ending. Sometimes the studios will dumb something down, and one gets it back in this fashion.
It used to be a state responsibility until about ten years ago, when the federal government took over collection and distribution to the states. Unlikely to happen in the US, but you never know, power might one day be wrestled from the local governments. For imports it is collected at customs on items worth over $1k. I have never seen any reference to it for electronic goods---with the exception of high-value goods at customs, the consumer never has to pay GST directly.
What happens when the Australian gov't goes after the company to pay up and finds out that its nothing more than incorporation papers locked in a file cabinet?
Whoever ran the company gets charged with tax evasion. See here.
I recall someone on/. saying that their chemical plant offered 10% of any savings if one could find a way to cut costs, capped to $10M. So it seems not just to be the financial industry.
In which case everyone is still speeding, just at the same speed. Fighting increased enforcement will be an uphill battle when so many people ignore the law without a second thought.
Here there is once price for each discipline, irrespective of the location. Anyone can go to any university in the country for the same price: $8859/year for the higher paying professions, down to $5310 for those that bring less fortune, and $4429 for areas that are suffering shortages (maths and the sciences at the moment, though nursing used to be on the list as well).
While I assume that they still use RADAR or LIDAR for the detection, in South Australia cameras at intersections normally handle both both red-light and speed.
Since GPS is spread spectrum, access to the code would allow far better performance. The analogy I suppose being that it would be easier to speak over white noise than someone speaking the same language with the same voice as the other person that you are trying to communicate with.
The caps in Australia aren'tthatonerousanymore. Add to that that ISPs have mirrors that don't count towards the quota (eg. most open-source stuff, game updates, video, Steam content servers, etc.), and it really isn't that big a deal.
The alternative would be to be limited by congestion, which at least in my experience is practically nonexistent. Similarly, there is no incentive for providers to try to reduce usage of streaming video and Bittorrent, since the heavy users are paying a premium and there is no desire for them to switch to cheaper plans.
While I've not actually implemented this, it should be fairly easy to do by building two delay-line memories, and transmitting by copying from one to the other (i.e. replacing the feedback loop in the destination memory with the output of the source register).
Sounds like time for me to sit down and build some of this stuff.
ISPs normally provide a/48 or/60 or such, so you get all of your addresses with it. You can still have a firewall at the network exit; the only difference is that the destination addresses and ports don't get rewritten by NAT, but passed on verbatim.
Every host having a public address *is* a feature, since it removes the need for port forwarding.
The American government had asked them to start charging so that the rest of the soldiers wouldn't feel hard done by; to provide such things free to the (relatively well-paid) Americans wasn't thought to be fair on the British/Australian/etc. soldiers of lesser salary.
Slashdot Mirror
Rereading your comment, I think I may have slightly misunderstood what you were saying. If you have produced a digital signal by sampling an analogue one (i.e. if you look at the values of a signal at various points) over a finite, the DFT (or the FFT as its most popular algorithm) will not tell you what the fundamental frequency is.
You can get an approximation by making assumptions about the nature of the signals that you sample, but this is not the best way to do it, and those assumptions are normally that the signal contains frequencies in a range only half the sample rate.
"Sit down and work out the maths" is really just code for "here's one I prepared earlier". If you're keen on this sort of thing, read a bit about solving systems of linear equations, and you will hopefully be able to look at the problem, exclaim "this is trivial!" and live forever happy in the knowledge that it is indeed theoretically soluble (as I tried to describe above) without having to concern ones self with the computational subtleties that suck all of the fun out of it.
MIT OCW have a set of videos on linear algebra if your curiosity is sufficient to justify chewing up some time on it. Probably some of the most useful partially-post-high-school maths that one can learn. Here is a free textbook on it.
In the DFT case the signal is merely a finite number of samples, so you can forget about the time-dependence and look at it as a long vector. If you sit down and work out the maths, you find that the vectors corresponding to the constant function and the various sinusoids are linearly independent.
All you're really doing then is solving a system of linear equations---they don't just have to be sinusoids, you could find the coefficients for any linearly independent set of functions. You could just as easily replace one of the sinusoids with an exponential function and still get coefficients out such that you could do your weighted sum of vectors and get back your original function.
The director's cut isn't by necessity worse---Blade Runner for instance had a better ending. Sometimes the studios will dumb something down, and one gets it back in this fashion.
Farnell have free next-day courier shipping for Australian orders; I'd suggest giving them a try if you haven't used them before.
It used to be a state responsibility until about ten years ago, when the federal government took over collection and distribution to the states. Unlikely to happen in the US, but you never know, power might one day be wrestled from the local governments. For imports it is collected at customs on items worth over $1k. I have never seen any reference to it for electronic goods---with the exception of high-value goods at customs, the consumer never has to pay GST directly.
Whoever ran the company gets charged with tax evasion. See here.
I recall someone on /. saying that their chemical plant offered 10% of any savings if one could find a way to cut costs, capped to $10M. So it seems not just to be the financial industry.
Or the Commonwealth. And probably continental Europe and Asia as well, though I'm not sure about those.
Radar can measure instantaneous speed using the doppler effect.
In which case everyone is still speeding, just at the same speed. Fighting increased enforcement will be an uphill battle when so many people ignore the law without a second thought.
Here there is once price for each discipline, irrespective of the location. Anyone can go to any university in the country for the same price: $8859/year for the higher paying professions, down to $5310 for those that bring less fortune, and $4429 for areas that are suffering shortages (maths and the sciences at the moment, though nursing used to be on the list as well).
See: http://en.wikipedia.org/wiki/HECS#Commonwealth_supported_students
Strikes.
It was an audio signal generator based on a Wein Bridge oscillator that used a light bulb for amplitude stabilisation.
LG had released a similar phone before the Iphone, the Prada.
Some telecom gear uses GPS for time synchronisation, so when that disappears, things can break.
This article claims that it is not the IMEI but the Temporary Mobile Subscriber Identify (TMSI) that is tracked, the key word here being "Temporary".
The version that was given in Adelaide provides some details---the ID that is tracked appears to a temporary one, rather than the IMEI.
While I assume that they still use RADAR or LIDAR for the detection, in South Australia cameras at intersections normally handle both both red-light and speed.
ChipKit supposedly works for 32-bit PICs (it is owned by Microchip), though I'm not sure what is available for PIC18.
Since GPS is spread spectrum, access to the code would allow far better performance. The analogy I suppose being that it would be easier to speak over white noise than someone speaking the same language with the same voice as the other person that you are trying to communicate with.
This conjecture is known as the Church-Turing thesis. Hofstadter's GEB has some discussion of this.
The caps in Australia aren't that onerous anymore. Add to that that ISPs have mirrors that don't count towards the quota (eg. most open-source stuff, game updates, video, Steam content servers, etc.), and it really isn't that big a deal.
The alternative would be to be limited by congestion, which at least in my experience is practically nonexistent. Similarly, there is no incentive for providers to try to reduce usage of streaming video and Bittorrent, since the heavy users are paying a premium and there is no desire for them to switch to cheaper plans.
While I've not actually implemented this, it should be fairly easy to do by building two delay-line memories, and transmitting by copying from one to the other (i.e. replacing the feedback loop in the destination memory with the output of the source register). Sounds like time for me to sit down and build some of this stuff.
ISPs normally provide a /48 or /60 or such, so you get all of your addresses with it. You can still have a firewall at the network exit; the only difference is that the destination addresses and ports don't get rewritten by NAT, but passed on verbatim.
Every host having a public address *is* a feature, since it removes the need for port forwarding.
This was because of other considerations.
The American government had asked them to start charging so that the rest of the soldiers wouldn't feel hard done by; to provide such things free to the (relatively well-paid) Americans wasn't thought to be fair on the British/Australian/etc. soldiers of lesser salary.