Optical Sensors



Get GSD And Footprint, Different Methods Depending On Parameters Known

Sensor Specifications        Sensor Specifications        Sensor Specifications
Sw Sensor Width Of The Camera [millimeters]        H Flying Height [meters]        imW Image Width [pixels]
Fr Focal Length Of The Camera [millimeters]        Fr Focal Length Of The Camera [millimeters]        Fr Focal Length Of The Camera [millimeters]
H Flying Height [meters]        Ps Pixel Size [microns]        Sw Sensor Width Of The Camera [millimeters]
imW Image Width [pixels]               H Flying Height [meters]
imH Image Height [pixels]              
             
             
Image Specifications        GSD        GSD
GSD Ground Sampling Distance [centimeters/pixel]        GSD Ground Sampling Distance [centimeters/pixel]        GSD Ground Sampling Distance [centimeters/pixel]
DW Footprint Width [meters]              
DH Footprint Height [meters]              
             


Get GSD And Footprint, Specific For Satellite Imagery

H Flying Height [kilometers]        GSD Pan Panchromatic GSD [centimeters]        Teta Pointing Angle/ Off Nadir Angle [degrees]
Lambda Aperture Size [micrometers]               GSD nadir Ground Sampling Distance [centimeters/pixel]
D Aperture Size [centimeters]              
GSD        Multispectral GSD        GSD at given pointing angle assumed flat earth
GSD Ground Sampling Distance [centimeters/pixel]        GSD MS Multispectral GSD [centimeters/pixel]        GSD off nadir Ground Sampling Distance [centimeters/pixel]
             




Get Aperture Size

H Flying/ Orbit Height [kilometers]
Lambda Aperture Size [micrometers]
GSD Ground Sampling Distance [centimeters/pixel]
Aperture Size
D Aperture Size [centimeters]




Get Flying/ Orbit Height

GSD Ground Sampling Distance [centimeters/pixel]        GSD Ground Sampling Distance [centimeters/pixel]        GSD Ground Sampling Distance [centimeters/pixel]
Fr Focal Length Of The Camera [millimeters]        Fr Focal Length Of The Camera millimeters        Lambda Aperture Size [micrometers]
imW Image Width [pixels]        Ps Pixel Size microns        D Aperture Size [centimeters]
Sw Sensor Width Of The Camera [millimeters]              
Flying Height        Orbit Height        Orbit Height
H Flying/ Orbit Height [meters]        H Flying/ Orbit Height [meters]        H Flying/ Orbit Height [kilometers]
             




Get Focal Length

GSD Ground Sampling Distance [centimeters/pixel]        GSD Ground Sampling Distance [centimeters/pixel]
imW Image Width [pixels]        imW Image Width [pixels]
H Flying Height [meters]        H Flying Height [meters]
Sw Sensor Width Of The Camera [millimeters]       
Focal Length        Focal Length approximation for when Sw not known
Fr Focal Length Of The Camera [millimeters]        Fr Focal Length Of The Camera [millimeters]
      




Get Sensor Width

Image Specifications       
imW Image Width [pixels]        imW Image Width [pixels]
GSD Ground Sampling Distance [centimeters/pixel]        Ps Sensor Pixel Size [microns]
Fr Focal Length Of The Camera [millimeters]       
H Flying Height [meters]       
      
      
Sensor Width        Sensor Width
Sw Sensor Width Of The Camera [millimeters]        Sw Sensor Width Of The Camera [millimeters]
      




Get Pixel Size

Sw Sensor Width Of The Camera [millimeters]
imW Image Width [pixels]
Pixel Size
Ps Pixel Size [microns]




Get Field Of View

Sw Sensor Width Of The Camera [millimeters]
Sh Sensor Height Of The Camera (optional) [millimeters]
Fr Focal Length [millimeters]
field of view
FOV H Field Of View Horizontally [degrees]
FOV W Field Of View Vertically [degrees]




SAR Sensors



get Slant Range Resolution

B CHIRP Bandwidth [megahertz] e.g. Radarsat2: 11.3 - 100 mHz, TerraSAR-X: 150/300 mHz,
Slant Range Resolution
Psr Slant Range Resolution [meters]




Get Ground Range Resolution

Psr Slant Range Resolution [meters]
H Flying/ Orbit Height (not so important) [kilometers]
Beta Local Iincidence Angle [degrees]
Ground Range Resolution
Pg Ground Range Resolution [meters]




Get Azimuth Range Resolution

D Antenna Dimension In Azimuth Direction [meters]
Azimuth Range Resolution
Pa Azimuth Range Resolution [meters]