1. Draw time- and frequency-domain sketches for a 2-kHz square wave. The time-domain sketch is a standard oscilloscope display while the frequency domain is provided by a spectrum analyzer.
2. Explain the function of Fourier analysis.
3. A 2-kHz square wave is passed through a filter with a 0- to 10-kHz frequency response. Sketch the resulting signal, and explain why the distortion occurs.
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