Digital Signal Processing Using Matlab (Ebook)
2018-07-09
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Digital Signal Processing (DSP) is an important eld of study that has come
about due to advances in communication theory, digital (computer) technology, and
consumer devices. There is always a driving need to make things better and DSP
provides many techniques for doing this. For example, people enjoy music and like
to download new songs. However, with slow Internet connection speeds (typically
56 kilobits per second for a dial-up modem), downloading a song could take hours.
With MP3 compression software, though, the size of the song is reduced by as much
as 90%, and can be downloaded in a matter of minutes. The MP3 version of the
song is not the same as the original, but is a \good enough" approximation that
most users cannot distinguish from the original. How is this possible? First, it is
important to know about the original song (a signal), and how it is represented
digitally. This knowledge leads to an algorithm to remov
about due to advances in communication theory, digital (computer) technology, and
consumer devices. There is always a driving need to make things better and DSP
provides many techniques for doing this. For example, people enjoy music and like
to download new songs. However, with slow Internet connection speeds (typically
56 kilobits per second for a dial-up modem), downloading a song could take hours.
With MP3 compression software, though, the size of the song is reduced by as much
as 90%, and can be downloaded in a matter of minutes. The MP3 version of the
song is not the same as the original, but is a \good enough" approximation that
most users cannot distinguish from the original. How is this possible? First, it is
important to know about the original song (a signal), and how it is represented
digitally. This knowledge leads to an algorithm to remov
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