Tuesday, 9 April 2019

DSP and Astronomy

10/3/2019 Astronomy = (DSP + Statistics + Data Science)

Look at this slide about windowing from DSP Guru Mitra


Sequence/Pulse Windowing is the act of turning a infinite length sequence into a finite length sequence by applying a window sequence


So that is what this massive phallic construct does:




Which can be broken down into geek speak like this:



Radio Telescopes are windows on the Universe


So if you have the infinities of a pulsar signal (That's artist embellishment right there) and apply all those DeDispersions, FFTs, phase binning. Then we can get a limited sequence called a power spectrum in terms of frequency and time.

Its just a windowed sequence of values

Or we can use it to blow each other up and all that other planetary chauvinism stuff.

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