A Novel Procedure for Receiver Noise Characterization
Vahe' Adamian, Arthur Uhlir · IEEE Transactions on Instrumentation and Measurement · 1973
The noise figure at one value of source admittance, plus the variation of output noise power with source admittance, are sufficient for the complete noise characterization of a linear receiver. A standard noise generator of variable admittance is not required. A wide range of source admittances can be used.