Sentences with phrase «sine waves from»

Conceptualized, designed, built and tested product based on Fourier analysis concepts to obtain high frequency sine waves from digital square wave oscillators, resulting in less expensive / more compact product.
The software produces a sine wave from a «best fit» solution.

Not exact matches

The drawing shows sine waves that resemble waves on the surface of water being reflected from two surfaces of a film of varying width, but that depiction of the wave nature of light is only a crude analogy.
The sine wave is plotted from the published orbit data and is only lined up visually to our data.
If creases and curls are your thing, the Elantra delivers, from its black - braced hexagonal grille and wraparound projector headlamps to its sine - wave character lines.
The ratio line from $ 9.99 to $ 14.99 probably resembles a sine wave than something straight, if the ratio at $ 12.99 to $ 9.99 was better, Amazon would have used it.
It is a little dangerous to project a trend from two points on a sine wave, especially when the measurements of the two points are subject to «error correction.»
I did however buy a $ 300 1500 watt pure sine wave inverter to run my house from the Volt's 16kwh battery when the grid is down.
However, by plotting monthly data that has been adjusted for possible systematic changes, such as the temperature «sine wave» by simply subtracting the long term average for each month from each individual datum — which I call «monthly differences» — as its cumulative sum rather than in its original form, the cusum pattern that emerges is often quite striking.
I agree with the commenters who note here and have noted elsewhere on WUWT that any model of the climate needs to have some governor function or functions at some organizing level higher than that of a sine wave cycling from peak to trough and back again.
This is easily refuted by fitting the top of a gaussian to the top of a sine wave, or vice versa (depending on which one you propose to extrapolate from).
Don't forget cycles in autocorrelation do not necessarily result from such nice sine wave looking cycles in the data, but do show repetitions of pattern.
Now I had seen this before with many individual stations, but it really impressed me to see the pattern matching from such far - flung locations... So is this «sine wave» the true climate signal?
«Taking these ten locations from across the globe andsuperimposing the anomaly data produced a sine wave - like pattern with distinct cooling from the early 1940s to mid-1970s followed by warming to present; for many of the locations the older data was warmer, or at least as warm as present.
It would seem a natural sine wave - a cycle that switches from cold - to - warm - back - to - cold - etc.
Girma for a bit of fun I reconstructed the hadcrut3V global tempreature series from sine waves of different frequencies amplitudes and phases (I think it is pretty good fit over 1850 to 2010 — and beyond!).
And while it may not be a «perfect» sine wave either: going constantly from uniform peaks to uniform troughs back to uniform peaks, it will be some pattern that can be used.
Any sine wave with a period longer than the length of the time series (in the case of GISS, about 130 years) will give a fit almost indistinguishable from a straight line fit.
Instead what I did was take your result from Loehle 2007 which gives a 2000 year reconstruction and perform the same analysis — what is the sine wave with the best fit to the 2,000 year data?
The positive slope is the recovery from the LIA and the sine wave the stadium wave, solar effect, or AMO / PDO effects.
In fact, you can get a very good fit with actual temperature by modeling them as three functions: A 63 - year sine wave, a 0.4 C per century long - term linear trend (e.g. recovery from the little ice age) and a new trend starting in 1945 of an additional 0.35 C, possibly from manmade CO2.
However, it is instructive to note that a simple model of a linear trend plus sine wave matches history so well, particularly since it assumes such a small contribution from CO2 (yet matches history well) and since in prior IPCC reports, the IPCC and most modelers simply refused to include cyclic functions like AMO and PDO in their models.
This is in the same category of drawing sine waves using half - circles from a drawing template which yield a «slope» that is seemingly infinite as (delta y / delta x)- > infinity as x - > 0.
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