Abstract
There are several natural and man-made sources of unwanted external noise which can be introduced in the radiowave transmission of a space communications link. Any natural absorbing medium in the atmosphere which interacts with a radiowave will not only produce a signal amplitude reduction (attenuation), but will also be a source of thermal noise power radiation. The noise associated with these sources, referred to as radio noise, or sky noise, will directly add to the system noise through an increase in the antenna temperature of the receiver. For very low noise communications receivers, such as those in the NASA deep space tracking network, radio noise can be the limiting factor in the design and performance of the system.
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© 1986 Van Nostrand Reinhold Company Inc.
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Ippolito, L.J. (1986). Radio Noise in Satellite Communications. In: Radiowave Propagation in Satellite Communications. Springer, Dordrecht. https://doi.org/10.1007/978-94-011-7027-7_7
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DOI: https://doi.org/10.1007/978-94-011-7027-7_7
Publisher Name: Springer, Dordrecht
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