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Signals and Systems by Smarajit Ghosh

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1.11 REPRESENTATION OF DISCRETE TIME SYSTEMS

It is possible to describe the operations of discrete time systems with the help of block diagrams. Using the fundamental building blocks, the block diagrams of discrete time systems can be prepared. The fundamental building blocks are adders, multipliers, delay and advance elements which are discussed in this article.

1.11.1 Adder

An adder performs the addition of two sequences and generates the output sequence which is the sum of input sequences shown in Fig. 1.25.

 

Symbol for Adder

 

Fig. 1.25 Symbol for Adder

 

Figure 1.26 shows the alternate symbol for adder.

 

 

Fig. 1.26 Alternate symbol for Adder

1.11.2 ...

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