Receiver system-noise temperature
STEMP = systemp(NF)
STEMP = systemp(NF,REFTEMP)
Noise figure in decibels. The noise figure is the ratio of the actual output noise power in a receiver to the noise power output of an ideal receiver.
Reference temperature in kelvin, specified as a nonnegative scalar. The output of an ideal receiver has a white noise power spectral density that is approximately the Boltzmann constant times the reference temperature in kelvin.
Effective system-noise temperature in kelvin. The effective
system-noise temperature is
Calculate the system noise temperature of a receiver with a 300 K reference temperature and a 5 dB noise figure.
T = systemp(5,300)
T = 948.6833
 Skolnik, M. Introduction to Radar Systems. New York: McGraw-Hill, 1980.
Usage notes and limitations:
Does not support variable-size inputs.