When enhancing a 0.5 Hz wave, which of the following frequencies would maintain the integrity of spikes?

To maintain the integrity of spikes when enhancing a 0.5 Hz wave, it is essential to choose a frequency that is low enough to accurately capture the waveform characteristics without distorting them. In this case, selecting a frequency of 0.3 Hz is beneficial because it is very close to the original frequency of the wave. This means that the enhancements made at this frequency can effectively reflect the true amplitude and shape of the spikes in the 0.5 Hz wave without introducing aliasing or artifacts.

Frequencies that are significantly higher than the original can truncate or distort the wave, leading to a loss of crucial information associated with spike events. Therefore, while choices at lower frequencies seem appealing, those that are too far from the 0.5 Hz baseline may not accurately preserve the waveform’s details. By maintaining a low frequency, such as 0.3 Hz, one closely identifies and enhances the desired characteristics of the spikes present within the original signal.