A very high resolution multispectral television camera system has been developed for NASA for use on the Earth Resources Technology Satellite (ERTS) program. There are three cameras in the system, each viewing the same area but operating in the blue-green, red, and near-infrared spectral bands. In the laboratory the cameras' limiting resolution is 4500 TV lines over the 25 x 25-mm image format of the Return Beam Vidicon (RBV). Analysis of typical ERTS scenes shows that actual contrast ratios will be much lower than those of laboratory test targets. A model was developed to predict the resolving power performance of the RBV camera under realistic conditions. To verify the model, tests were conducted using the RBV camera, a laser-beam image reproducer and a series of AF tribar test patterns of known values of contrast. As a more graphic demonstration, simulated multispectral images were generated using color-IR photographs from Apollo 9. The measured signal-to-noise, resolution, and spectral characteristics of the ERTS Flight A and Flight B three-camera systems are presented in conclusion.


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    Title :

    High resolution multispectral camera system for ERTS A & B


    Contributors:


    Publication date :

    1973-10-01


    Type of media :

    Miscellaneous


    Type of material :

    No indication


    Language :

    English




    High resolution multispectral camera system for ERTS A & B.

    Miller, B. P. / Beck, G. A. / Barletta, J. M. | NTRS | 1972


    High resolution multispectral camera system for ERTS A & B

    MILLER, B. P. / BECK, G. A. / BARLETTA, J. M. | AIAA | 1973



    Multispectral scanner (MSS), ERTS-1

    Arlauskas, J. | NTRS | 1973