What do you mean by spectral resolution?

Spectral resolution describes the ability of a sensor to define fine wavelength intervals. The finer the spectral resolution, the narrower the wavelength range for a particular channel or band. Many remote sensing systems record energy over several separate wavelength ranges at various spectral resolutions.

What is resolution of spectral signals?

Spectral resolution refers to the bandwidth and the sampling rate over which the sensor gathers information about the scene. High spectral resolution is characterised by a narrow bandwidth (e.g., 10 nm). Spatial resolution refers to the smallest features in the scene that can be separated (resolved).

What is spatial and spectral resolution?

Spatial Resolution refers to the size of the smallest feature that can be detected by a satellite sensor or displayed in a satellite image. Spectral Resolution refers to the ability of a satellite sensor to measure specific wavlengths of the electromagnetic spectrum.

How is the spectral resolution of an image defined?

1. Different classes of features and details in an image can often be distinguished by comparing their responses over distinct electromagnetic wavelength ranges. Spectral resolution describes the ability of a sensor to define fine wavelength intervals.

How is spatial resolution different from power resolution?

Spatial resolution of any satellite sensor applies to the image produced by thesystem, whereas resolving power of any photograph applies to an imaging system or a component of the system.

How is the spectral resolution of STIs determined?

The STIS example above then has a spectral resolution of 51 km/s . IUPAC defines resolution in optical spectroscopy as the minimum wavenumber, wavelength or frequency difference between two lines in a spectrum that can be distinguished. Resolving power, R, is given by the transition wavenumber, wavelength or frequency, divided by the resolution.

Which is the best definition of temporal resolution?

Temporal resolution: It refers to how often a given sensor obtains imagery of a particular area. Ideally, the sensor obtains data repetitively to capture unique discriminating characteristics of the phenomena of interest. It is the width of the spectral band and the number of spectral bands in whichthe image is taken.