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  1. shankar1

    idea of infinite energy

    We all know that a noise have an flat spectrum. Also we know that the noise have an inverse fourier transform approximately equal to a dirac function. The energy of this signal is very high (going to infinity almost). Can we tap a very high amount of energy from this signal at that instant...
  2. shankar1

    low pass filter

    Anyone got an idea of how a filter can have a roll off rate greater than 20 db per decade using a single pole or more than 40 db per decade using a double pole.
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