Question: Could I please have the worked solution for the question as follows: a) Discuss the meaning of the term time invariant used in the description

Could I please have the worked solution for the question as follows:

a) Discuss the meaning of the term time invariant used in the description of an analogue or digital filter. How does making this assumption simplify the analysis of such filters?

b) A linear, time invariant digital signal processing system has an output sequence response of {1,2,-2,1} to an input sequence of {1,-1}. Obtain the pulse transfer function, G(z), for the system and show in block diagram form one of the possible structures for its realization.

c) What is the system impulse response sequence, g(n)T?

d) The above filter is cascaded with another filter having a pulse transfer function of Could I please have the worked solution for the question as follows: . Determine the overall pulse transfer function of the new filter system.

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