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Comparing two versions of Venera-13 panoramas

Comparing two versions of Venera-13 panoramas
Comparing two versions of Venera-13 panoramas This graph is a comparison of the pixel values in one of the Venera-13 panoramic images to the values of the same pixels in another one transmitted later. The two images were transmitted to Earth using different methods of modulating the radio signal, one pulse-code and the other pulse-time modulated. Don Mitchell