1. A feature recognition system comprising: first means for converting signals and signal-like noise in the amplitude-time domain into amplitude-time-frequency domain signals; second means receiving said amplitude-time-frequency domain signals for abstracting primary features therefrom and for automatically recognizing the relative presence of invariant recognition features associated with said primary features; and overload logic means operatively connected to said first means for providing disabling and resetting signals to said second means responsive to an overload condition appearing in said first means and sensed by said overload logic means.