Intermodulation Distortion of FDM-FM in Injection-Locked Oscillator
M. Ramadan · IRE Transactions on Communications Systems · 1973
When an injection-locked oscillator is used to amplify a frequency division multiplexing-frequency modulation FDM-FM signal, second- and third-order distortions are found to exist. Explicit expressions are derived that give the signal-to-distortion ratio (NPR) as a function of the locking bandwidth, frequency offset, and various modulation parameters. These formulas are believed to be valid within the limits of the assumptions made.