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Unformatted text preview: x[k] T Σ DC … … T Σ X[n] n th harmonic T Σ 2cos(2 π n/N-1-W N n Σ … … FFT#2 - 1 Digital Signal Processing Dr. Fred J. Taylor, Professor Response For k=2, for example, the poles are at the location of the zeros of W122 which implies pole-zero calculation. However, even in floating point the production of W122 contains some error meaning that exact pole-zero is unrealistic. The pole maybe conditionally unstable. If a tone arrives at the 4th harmonic, your dead. It is for this reason that the poles of the resonator are force to be “slightly” interior to the unit circle. FFT#2 - 2...
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