Sampling Aliasing Consider Signal Y T 5 10 Cos 30t 1 5cos 90 Determine 1 Frequencies Hz Q25403809

I. Sampling and Aliasing Consider the signal y (t) 5 + 10 cos(30t) + 1 5cos(90). Determine: 1. The frequencies (in Hz) contained in the signal; 2. The minimum sample rate (in samples/s) necessary to avoid aliasing 3. Sketch the amplitude-frequency spectrum of y() and the amplitude-frequency spectrum if the signal is sampled at 20 samples/s.

I. Sampling and Aliasing Consider the signal y (t) 5 + 10 cos(30t) + 1 5cos(90). Determine: 1. The frequencies (in Hz) contained in the signal; 2. The minimum sample rate (in samples/s) necessary to avoid aliasing 3. Sketch the amplitude-frequency spectrum of y() and the amplitude-frequency spectrum if the signal is sampled at 20 samples/s. Show transcribed image text I. Sampling and Aliasing Consider the signal y (t) 5 + 10 cos(30t) + 1 5cos(90). Determine: 1. The frequencies (in Hz) contained in the signal; 2. The minimum sample rate (in samples/s) necessary to avoid aliasing 3. Sketch the amplitude-frequency spectrum of y() and the amplitude-frequency spectrum if the signal is sampled at 20 samples/s.

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