Publication Date:
2019-06-28
Description:
The spatial radiance distribution of a ground target must be known to a resolution at least four to five times greater than that of the system under test when measuring a satellite sensor's modulation transfer function. Calibration of the target requires either the use of man-made special purpose targets with known properties, e.g., a small reflective mirror or a dark-light linear pattern such as line or edge, or use of relatively high resolution underflight imagery to calibrate an arbitrary ground scene. Both approaches are to be used in addition a technique that utilizes an analytical model for the scene spatial frequency power spectrum is being investigated as an alternative to calibration of the scene.
Keywords:
EARTH RESOURCES AND REMOTE SENSING
Type:
E83-10394
,
NASA-CR-172936
,
NAS 1.26:172936
Format:
application/pdf