An ECG is sampled at 500 Hz, and a data record of length 256 is used for an FFT analysis. What is the frequency resolution of the FFT components? If a resolution of 1 Hz is required, what would the minimum data length be for analysis?

An ECG is sampled at 500 Hz, and a data record of length 256 is used for an FFT analysis. What is the frequency resolution of the FFT components? If a resolution of 1 Hz is required, what would the minimum data length be for analysis?


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