In-flight AHS MTF measurements

Françoise Viallefont-Robinet; Guillaume Fontanilles; Eduardo de Miguel

doi:10.1117/12.798106

9 October 2008 In-flight AHS MTF measurements

Françoise Viallefont-Robinet, Guillaume Fontanilles, Eduardo de Miguel

Proceedings Volume 7106, Sensors, Systems, and Next-Generation Satellites XII; 710611 (2008) https://doi.org/10.1117/12.798106
Event: SPIE Remote Sensing, 2008, Cardiff, Wales, United Kingdom

Abstract

The disposal of couples of images of the same landscape acquired with two spatial resolutions gives the opportunity to assess the in-flight Modulation Transfer Function (MTF) of the lower resolution sensor in the common spectral bands. For each couple, the higher resolution image stands for the landscape so that the ratio of the spectra obtained by FFT of the two images, gives the lower resolution sensor MTF. This paper begins with a brief recall of the method including the aliasing correction. The next step presents the data to be processed, provided by the Instituto Nacional de Tecnica Aeroespacial (INTA). The model of the AHS MTF is described. The presentation of the corresponding AHS results naturally follows. Last part of the paper consists in a comparison with other measurements: measurements obtained with the edge method and laboratory measurements.

Citation Download Citation

Françoise Viallefont-Robinet, Guillaume Fontanilles, and Eduardo de Miguel "In-flight AHS MTF measurements", Proc. SPIE 7106, Sensors, Systems, and Next-Generation Satellites XII, 710611 (9 October 2008); https://doi.org/10.1117/12.798106

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