A statistical technique is presented for the characterization of spectral regrowth at the output of a nonlinear amplifier driven by a digitally modulated carrier in a digital radio system. The technique yields an analytical expression for the autocorrelation function of the output signal as a function of the statistics of the quadrature input signal transformed by a behavioral model of the ampl...

Variability of Classical T Tauri Systems (CTTS) occurs over a vast range timescales. CTTS in particular are subject to variability caused by accretion shocks which can occur stochastically, periodically, or quasi-periodically on timescales few days. The detectability young planets within these systems is likely hampered activity; therefore, it essential that we understand the origin star help d...