Push%20broom%20imaging

1
Push broom imaging

• Use only a linear array of detectors
• Spacecraft motion sweeps this array along the
  surface
• Field of view sets Swath width
• Number of pixels sets pixel-scale

2
Stereo Imaging
3

• Hyper-spectral imaging
• Each pixel in the image has a spectra
• Like taking hundreds of images at different
  wavelengths

4
How it works

• Pushbroom imaging again
• But with a 2D CCD array

Bands Blue to Red
Across-track pixels
Across-track pixels