AbstractAn AOTF (Acousto-Optic Tunable Filter) and a LCTF (Liquid Crystal Tunable Filter) are bandpass filters with a capability of adapting observation wavelength as desired almost instantaneously and with high spectral resolution. When a sensor with these filters is used for the earth observation, a user can change the observation wavelength according to the demand. The change can be made manually during the observation from an air plane. If the observation is from a satellite then the change can be made by the command from the ground station in real time. Thus the very useful data for observation purpose can be obtained through use of a sensor with these filters. Furthermore, these filters are suitable for polarization observation which can provide another valuable information to the multi-spectral observation data. In this paper, the comparison of these adaptive sensors with a conventional ones and the problems for loading such an adaptive sensor are described.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Earth observation by the adaptive wavelength optical image sensor


    Contributors:

    Published in:

    Advances in Space Research ; 39 , 1 ; 185-189


    Publication date :

    2006-09-12


    Size :

    5 pages




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    English





    A CMOS TDI image sensor for Earth observation

    Rushton, Joseph E. / Stefanov, Konstantin D. / Holland, Andrew D. et al. | SPIE | 2015


    Optical observation of artificial earth satellites

    Astronomičeskij Sovet | TIBKAT | 1961


    Earth Observation

    Becker, F. / European Space Agency | British Library Conference Proceedings | 1996


    Earth observation

    Goldsmith, P. / Readings, C. J. / European Space Agency et al. | British Library Conference Proceedings | 1994