Signal
In space and astronautical engineering, Signal refers to any form of energy, such as electromagnetic radiation, that is used to transmit information between two or more points in space. Signals can be used for a variety of purposes, including communication between spacecraft and ground stations, navigation, and remote sensing. The quality of a signal is determined by its strength, frequency, and bandwidth, as well as any interference or noise that may be present. Engineers use a variety of techniques to optimize signal quality, such as antenna design, modulation schemes, and error correction codes.
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