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The DDM term is mostly used in the GNSS Reflectometry (GNSS-R) scope, but is conceptually equivalent to the radar ambiguity function. In fact, a GNSS-R system can be understood as a bistatic radar, that is to say, a configuration in which the transmitter (the GPS/Galileo/GLONASS/Beidou satellite) and the receiver (which receives the reflected signal) are ...


2

The scientific instruments on board will not be able to detect minerals on Callisto. Cameras will record physical features of the surfaces, such as: craters, geological faults, folds and color variations. The color variations will indicate change in mineralogy, but nothing else. Altimeters only measure altitude. The magnetometer will measure variations in ...


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