alias signal problem

Discussion in 'Homework Help' started by pww, Apr 21, 2010.

  1. pww

    Thread Starter New Member

    Feb 5, 2010
    7
    0
    Assume a signal is band limited to 1KHz but there is an unwanted component present at 3.2KHz. If the desired signal is a 100Hz sinusoid of amplitude 3V p-p centered around 2.5V and VREF=5V, determine the magnitude of the aliased signal and the frequency of the aliased signal if the input is sampled at 2KHz and the amplitude of the undesired 3.2KHz signal is 0.5V p-p (and also centered around 2.5V).

    So, I am using this equation:

    [​IMG]
    and I have fsamp set as 2KHz. What would f be in this equation? and what is k? and how am I determine the magnitude of the aliased signal?

    Any help is appreciated.
    Thanks!
     
  2. pww

    Thread Starter New Member

    Feb 5, 2010
    7
    0
    ok, I got faliased = 800Hz. I'm pretty sure that is right but I have no idea how to find the magnitude of the aliased frequency??
     
    Last edited: Apr 21, 2010
Loading...