Advantages:

1. FIR filters have exact linear phase.

2. FIR filters are always stable.

3. FIR filters can be realized in both recursive and non recursive structure.

4. Filters with any arbitrary magnitude response can be tackled using FIR sequence.

Disadvantages:

1. For the same filter specifications the order of FIR filter design can be as high as 5 to 10 times that in an IIR design.

2. Large storage requirement is requirement

3. Powerful computational facilities required for the implementation.

Draw the direct form realization of FIR system.

Draw the direct form realization of a linear Phase FIR system for N odd

Draw the direct form realization of a linear Phase FIR system for N even.

Draw the M stage lattice filter.