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3 cards from this section. Quick, good the night before a test.
What is noise in signal processing?
Think about sources of error in your measurements.
Name a type of filter that allows frequencies below a specific cutoff to pass.
Consider which frequencies you would keep.
What is the purpose of a digital filter?
Think about how filters improve data accuracy.
True or False: A notch filter eliminates all frequencies.
Consider what a notch entails in filtering.
A sensor collects data contaminated with 50 Hz noise. Propose a filtering strategy and justify your choice of filter.
Identify which filter idealistically removes only the unwanted frequency.
Discuss how the sampling rate affects the application of digital filters in signal analysis.
Consider the relationship between sampling and data representation in frequency analysis.
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