next up previous
Next: Computing with Complex Numbers Up: Collected Problems Previous: Implementation of FIR Filters

Sinusoids

1.
What are the amplitude, frequency, and phase of the sinusoid $x(t)=A\cos(2\pi ft+\phi)$ in the diagram below.

Amplitude (A) Frequency (f) Phase ($\phi$)
     

\includegraphics[width=0.6\textwidth]{/usr/people/pparis/courses/ece201/P21.eps}

2.
What are the amplitude, frequency, and phase of the sinusoid $x(t)=A\cos(2\pi ft+\phi)$ in the diagram below.

Amplitude (A) Frequency (f) Phase ($\phi$)
     

\includegraphics[width=0.6\textwidth]{/usr/people/pparis/courses/ece201/P21_b.eps}

3.
Plot a the signal $x(t)=2\cos(2\pi 2t + \frac{\pi}{2})$ in the diagram below.
\includegraphics[width=0.8\textwidth]{/usr/people/pparis/courses/ece201/P1_b.eps}


Prof. Bernd-Peter Paris
2001-10-02