Abstract:

Since the simulation underwater acoustic signal is used
in the semi-object simulation experiment of underwater weapons,
it has great impression upon simulation fidelity.It is asked that
whether simulation signals can replace the real signal effectually.
Considering the randomness of signals,the interval estimation of
feature parameters of simulation signals is made.By comparing
the obtained confidence interval with the corresponding accept
interval,the concept of similarity coefficient of simulation signals is
given.By making a statistical analysis for similarity coefficient,the
uniformity information of simulation signals is extracted,and the
fuzzy number which expresses the fuzzy uniformity level of simu-
lation signals is obtained.The analysis method on fuzzy uniformity
of simulation underwater acoustic signals is presented.It is indi-
cated by the application in simulation of target radiated-noises that
the method is suitable and effectual for the simulation research on
underwater acoustic signals,and the analysis result may provide
support for decision-making relative to perfecting simulation sys-
tems and applying simulation signals.