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SPFirst-L03

# SPFirst-L03 - Signal Processing First READING ASSIGNMENTS...

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1/12/2004 © 2003, JH McClellan & RW Schafer 6 AVOID Trigonometry Algebra, even complex, is EASIER !!! Can you recall cos( θ 1 + θ 2 ) ? Use: real part of e j 1 2 ) = cos( θ 1 + θ 2 ) 2 1 2 1 ) ( θ θ θ θ j j j e e e = + ) sin )(cos sin (cos 2 2 1 1 θ θ θ θ j j + + = (...) ) sin sin cos (cos 2 1 2 1 j + = θ θ θ θ 1/12/2004 © 2003, JH McClellan & RW Schafer 7 Euler’s FORMULA Complex Exponential Real part is cosine Imaginary part is sine Magnitude is one )
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SPFirst-L03 - Signal Processing First READING ASSIGNMENTS...

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