How to compute the coefficients of a digital FIR filter given it's schematic diagram.

Definitions:

• Cross-Correlation, autocorrelation.

Know the relationship of the autocorrelation to the signal energy.
Upper bound for the cross-correlation (or autocorrelation) of a signal.

Relationship of the cross-correlation of a signal pair to the convolution of a signal pair.

General difference equations

• Definition of a general difference equation and its assocaited schematic diagram.
• Relation between discrete difference equations and continuous ordinary differential equations.