  High-resolution numerical experiments, described in this work, show that
velocity fluctuations governed by the one-dimensional Burgers equation driven
by a white-in-time random noise with the spectrum $\overline{|f(k)|^2}\propto
k^{-1}$ exhibit a biscaling behavior: All moments of velocity differences
$S_{n\le 3}(r)=\overline{|u(x+r)-u(x)|^n}\equiv\overline{|\Delta u|^n}\propto
r^{n/3}$, while $S_{n>3}\propto r^{\zeta_n}$ with $\zeta_n\approx 1$ for real
$n>0$ (Chekhlov and Yakhot, Phys. Rev. E {\bf 51}, R2739, 1995). The
probability density function, which is dominated by coherent shocks in the
interval $\Delta u<0$, is ${\cal P}(\Delta u,r)\propto (\Delta u)^{-q}$ with
$q\approx 4$.
