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raised-cosine apodized,.

The two functions typically used to apodize a FBG are Gaussian and raised-cosine.

" The Guardian's Betty Clarke wrote, "Swapping campfire cosiness for expansive joy, they sound so accomplished the Flaming Lips comparisons fall by the wayside.

Expertly used skis are capable of carving clean circular arc segments whose approximate minimum radius is proportional to the cosine of the angle of tilt multiplied by the side-cut radius.

Negative correlation can be seen geometrically when two normalized random vectors are viewed as points on a sphere, and the correlation between them is the cosine of the arc of separation of the points on the sphere.

When this arc is more than a quarter-circle ("theta; > "pi;/2), then the cosine is negative.

The most important compression algorithm is the discrete cosine transform (DCT), a lossy compression technique that was first proposed by Nasir Ahmed while he was working at the University of Texas in 1972.

This allows the expansion of the function in a series solely of sines (odd) or cosines (even).

Companies based in Liuzhou The raised-cosine filter is a filter frequently used for pulse-shaping in digital modulation due to its ability to minimise intersymbol interference (ISI).

Its name stems from the fact that the non-zero portion of the frequency spectrum of its simplest form (\beta 1) is a cosine function, 'raised' up to sit above the f (horizontal) axis.

The raised-cosine filter is an implementation of a low-pass Nyquist filter, i.

or in terms of havercosines:.

When \beta 1, the non-zero portion of the spectrum is a pure raised cosine, leading to the simplification:.