In medicine, spectral features are used to analyze brain waves (EEG) for tasks like sleep staging. 2. Film and Fiction (The Ghostly)
The word is also a common adjective for things that are ghostly or immaterial. Spectral Content - an overview | ScienceDirect Topics Spectral
In technical contexts, "spectral" refers to the distribution of a signal's properties, like energy or power, across different frequencies. In medicine, spectral features are used to analyze
This is the distribution of power over a frequency range, often described using Power Spectral Density (PSD) . It helps engineers see where the "strength" of a signal lies. Light and Imaging: like energy or power