Data Providers: Sensor: EOIR Sensor To Target Metrics

Sensor: EOIR Sensor To Target Metrics

Time dependent metrics for a unique EOIR Sensor-Band / Target pairing.

Type: Time-varying data

Availability: Reports | Graphs | Dynamic Displays | Strip Charts

Name	Dimension	Type	Description
Time	DateFormat	Real Number	Time.
Range to Target	DistanceUnit	Real Number	The distance from the sensor to the target.
Effective target irradiance	PowerFluxDensity	Real Number	Irradiance at the sensor aperture from a target object whose angular extent is smaller than the effective instantaneous field of view, i.e. a point source target.
Point target solid angle	SolidAngle	Real Number	The solid angle subtended by a point source target at the sensor aperture.
Total noise equivalent irradiance	PowerFluxDensity	Real Number	The total sensor noise for point source targets, including scene photon noise and sensor dark noise, expressed in irradiance units and referred to the sensor aperture.
Scene photon NEI	PowerFluxDensity	Real Number	The noise equivalent irradiance (NEI) due to scene photon noise from the background and one component of the total NEI. Only defined when the target is a point source.
Effective target radiance	PowerFluxIntensity	Real Number	The average apparent radiance at the sensor aperture from a target object whose angular extent is larger than the effective instantaneous field of view, i.e. an extended area target.
Effective background radiance	PowerFluxIntensity	Real Number	The apparent radiance at the sensor aperture from the area immediately behind or adjacent to the target.
Total noise equivalent radiance	PowerFluxIntensity	Real Number	The total sensor noise for extended area targets, including scene photon noise and sensor dark noise, expressed in radiance units and referred to the sensor aperture.
Scene photon NER	PowerFluxIntensity	Real Number	The noise equivalent radiance (NER) due to scene photon noise from the background and one component of the total NER. Only defined when the target is an extended area source.
Signal to noise ratio	Unitless	Real Number	The ratio of the difference in sensor response between target-containing pixel(s) and the local surrounding pixels to the total noise. For point source targets the background is assumed to be uniform (spatial clutter is neglected) and the target is assumed to be exactly centered on a pixel.
Geometric instantaneous field of view footprint	Small Area	Real Number	The geometric instantaneous field of view (FOV) footprint at the distance to the target.
Effective instantaneous field of view footprint	Small Area	Real Number	The effective instantaneous field of view (FOV) footprint at the distance to the target.