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Post by kmawuko on Jan 27, 2011 17:14:38 GMT -5
hello, i am enrolled in a digital communications class and i need some help understanding how basis functions are derived for a set of orthogonal signals. the book we are using for the class is "Digital Communications", 5th Edition by John Proakis and Massoud Salehi.
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usman
New Member
Posts: 3
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Post by usman on Mar 12, 2011 16:38:54 GMT -5
I refer you a book:
DIGITAL COMMUNICATION by BERNARD SKLAR
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Post by charan langton on Mar 13, 2011 3:09:16 GMT -5
Any two (or more) signals can be basis functions if they are orthogonal. (0,1) and (1,0) vectors are orthogonal and we use them to take a line and create its x and y projections. This is the Cartesian system.
In communications, we use sine and cosines as the basis functions. Just think of them as the x and y axes.
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