Questions for self-testing

1.How do you define the analog signal and digital signal?

2.Why the DSP has an advantage before the A(Continuous)SP?

3.What is the AFR? Why in many cases the presentation of a harmonic signal (mode) in the AFR is more convenient? – (three parameters are necessary)!

4.In what cases the dB measure is convenient? What is dBm, dBW?

5.The usage of the operational symbols. In what cases their usage is really convenient?

6.Homogeneity property. What is this?

7.Nonlinear systems. Solve the exercise on page 9.

8.Time-invariant and commutative systems. Solve the exercises on page 10.

9.What is the reason of appearance of a signal ambiguity (aliasing) phenomenon?

10.How to understand the complex signal and negative frequency?

11.Bandpass signals/samplings and their properties. What is B, fc ,fs? What kind of the basic

relationships between them do you know?

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