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Unformatted text preview: Poles ROC Stable? Unit Circle in ROC? All outside unit circle YES YES One or more poles inside unit circle No No Inside circle with radius that of smallest magnitude pole 24 Oct 2007 16 Left Sided Signals with h[n] ≠ 0 for some n>0 Poles ROC Stable? Unit Circle in ROC? All outside unit circle YES YES One or more poles inside unit circle No No Inside circle with radius that of smallest magnitude pole, except z=0 24 Oct 2007 19 Two Sided Signals – made by adding leftsided and rightsided signals ROC Unit Circle in ROC? Stable? YES, if outside ring edge radius >1 and inside ring edge radius < 1 A ring, inside a circle with radius that of smallest magnitude pole from leftsided part, and outside a circle with radius that of largest magnitude pole of rightsided part No otherwise...
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 Spring '08
 Chezick
 Unit Circle, Howard Jay Chizeck University of Washington Seattle, 0 Poles

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