Exam (elaborations) TEST BANK FOR Digital Communications a Discrete-Time Approach 2ND Edition By Michael Rice (Solution Manual)-Converted
(a) 2 0 E T P (b) 1 2 10 2 0 E T P T (c) 1 2 E P (d) 2 2 E P A (e) 3 8 E P (f) 0 E T P (g) 1 4 0 E a P (h) 2 3 4 0 E A T P (i) 3 1/3 3 1/3 2/3 3 1 3 3 3 3 3 lim lim 3 lim 0 T t T T T E d T T P t T T T t 2.2 (a) 8 (b) 0 (c) 2 4 (d) 1 2.3 (a) 1 X (s) 5 s (b) ( ) 5 ln(5 6 ) ln(5) ( 1 ln ) (5) x t t s t e e X s (c) 5 s 1 (d) 5 s 1 2.4 (a) 2 2 2 3 2 3 ( ) 2 ( ) 4 4 ( ) ( ) 2 4 4 2 4 4 t ut t t ut X s s s s s s s x t (b) 2 3 2 3 2 3 2 3 ( ) ( 2 () 4 4 () 3 3 3 3 ) x t t e tu t t t e t X s u t s s s s s s (c) 0 0 0 0 0 0 0 2 2 2 2 2 2 0 0 0 cos ( ) 4 cos cos sin sin ( ) 4 4 1 cos 1 sin ( ) 2 2 ) 1 1 1 ( ( 2 ) 2 2 t ut t t u t t t u t X s s s s s x t s (d) 3 0 3 0 0 3 0 0 0 0 2 2 2 2 2 2 0 0 0 ( ) cos ( ) cos cos sin sin ( ) cos sin ( ) ( 3 3 3 3 1 3 2 2 ) 1 3 1 3 3 2 3 2 3 2 3 t t t x t e u t e ut e t t t t t s s u t X s s s s 2.5 (a) (2 ) (2 ) 2 2 2 ( ) ( ) cos( ) 2sin( ) ( ) c 1 1 2 2 2 2 ( ) 1 1 ( ) 2 2 1 1 2 2 5 os 63.4 ( ) j t j t t jt jt jt jt t t X s je je u t t tu j j s j s j xt j e j e u t e e e e e ut t t (b) 2 2 2 ( ) ( ) 4 1 ( 4 4 4 2 1 1 ( ) 4 t 4 t 4 t t t ) X s u t t e u t s s s x t e e te e (c) 2 2 2 2 4 4 4 2 2 ( ) 4 4 4 ( ) 1 t t t ( ) 4 t 1 t ( ) s s x t e te e e X s s u t t e u t 2.6 (a) 3 2 3 2 1 3 2 1 ( ) 3 ( ) ( ) t 2 t t s s s x t e e e X s u t (b) 2 3 2 2 3 2 3 3 3 2 2 1 ( ( ) 135 13 ) t 216 108 t 13 t ( ) X s t t s s s s s s x t e t e e u t (c) 2 3 2 2 3 2 ( ) 31 1 3 3 3 2 2 1 ( ) t 20 t t ( ) s s s s s s x X s t t t e t e e u t
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test bank for digital communications a discrete time approach 2nd edition by michael rice