Example 8.21: A causal LTI system is described by the difference equation y(n) - ay(n - 1) = bx(n) + k(n-1) where a is r

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Example 8 21 A Causal Lti System Is Described By The Difference Equation Y N Ay N 1 Bx N K N 1 Where A Is R 1 (59.94 KiB) Viewed 53 times

Example 8.21: A causal LTI system is described by the difference equation y(n) - ay(n - 1) = bx(n) + k(n-1) where a is real and its magnitude is less than 1. Find the value of b (b + a) such that the frequency response of the system satisfies |H(ejw)] = 1 for all w, an all pass system and the magnitude is constant independent of its frequency -