Question 1 
   2
   2
        1. What does the amplitude of a signal 
        measure? What does the frequency of 
        a signal measure? What does the 
        phase of a signal measure?
                                             Computer networks / Andrew S. Tanenbaum-- 5th ed
      Solution  1 
  3
  3   E.  Sinusoidal Signals:
                  Sine wave is the fundamental 
                     periodic signal.
                  A general sine wave can be 
                     represented by three 
                     parameters :
                      Peak amplitude (A)
                      Frequency (f)
                      Phase (φ)
                                                Signals and Systems Analysis
                     s(t) = A sin(2π f t +Φ)
        Solution 1 
   4
   4
         The amplitude of a signal measures the 
           value of the signal at any point.
                                              Behrouz A. Forouzan” Data communications and 
                                                                                Networking 
        Solution 1 
   5
   5
         The frequency of a signal refers to the 
           number of periods in one second.
                                              Behrouz A. Forouzan” Data communications and 
                                                                                Networking 
        Solution 1 
   6
   6
         The phase describes the position of the 
           waveform relative to time zero
                                              Behrouz A. Forouzan” Data communications and 
                                                                                Networking