Spectral [2025]

The ability of a sensor (like a camera) to distinguish between different wavelengths of light, such as infrared or ultraviolet, beyond what the human eye can see.

In technical contexts, "spectral" refers to the distribution of a signal's properties, like energy or power, across different frequencies.

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:

The ability of a sensor (like a camera) to distinguish between different wavelengths of light, such as infrared or ultraviolet, beyond what the human eye can see.

In technical contexts, "spectral" refers to the distribution of a signal's properties, like energy or power, across different frequencies.

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: