Noise Temperature of a Radar System
Noise Temperature of a Radar System
Radar performance is ultimately limited by noise coming from within the radar electronics together with noise that arises from black-body-like radiation from the atmosphere, cosmos, Sun, and ground. By expressing each of these components in terms of an equivalent noise temperature, they can be combined to estimate the effective system noise temperature at which the radar operates. Once this temperature is known, then the background noise power against which radar detections must be made is simply , where is Boltzmann's constant and is the effective bandwidth of the radar receiver.
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