NF has various meanings in the NASA category. Discover the full forms, definitions, and usage contexts of NF in NASA.
A method for quantifying the electrical noise generated by a practical device. The noise figure is the ratio of the noise power at the output of a device to the noise power at the input to the device, where the input noise temperature is equal to the reference temperature (290 K). The noise figure is usually expressed in decibels.
NASALast updated: