These stable solutions coincide with the

amplitude characteristic curves in Figure 2.

This section shows way of realization and simulation results with

amplitude characteristic of overall filter.

From the analysis above, it is feasible to approximate an isotropic

amplitude characteristic of the areal spline filter by implementing an approximating spline filter in a manner similar to the separable areal Gaussian filter.

The

amplitude characteristic of previously described filter function is described by

where [DELTA][A.sub.dB] is the maximum out-of-band gain (ratio of the maximum and minimum values of the

amplitude characteristic, given in decibels).

The

amplitude characteristic [U.sub.dyn] (A) for quasistationary sinusoidal vibration A = [A.sub.o] sin ([omega]t) can be obtained by multiplying U by [beta] = 1/(2 x D) of resonance surpass of forced vibration.

From the amplitude L([omega]) and phase [phi]([omega]) characteristics presented in this diagram, it is seen that the system is stable, since the

amplitude characteristic crosses the abscissa axis before the phase characteristic, finally decaying, goes over the value of the angle -180[degrees].

Figure 14 shows the

amplitude characteristic of filter sharpening structure with amplitude change function F(H) = [3H.sup.2] - [2H.sup.3], and factor M = 2 of frequency masking subsystem filter.

The minimum losses, which enable a flat

amplitude characteristic, are 18 dB.

However, if the output power is measured at the fundamental frequency, the

amplitude characteristic shows that the output level increases beyond 27 dBm to saturate at 2.1 dB above this level, as shown in Figure 5.

By numerical modeling of the operation of a linear piezoceramic motor, the influence of the geometric parameters of the motor piezoelectric element on its

amplitude characteristics was determined, graphic and analytical dependencies were established to select their rational ratios.

Based on the accumulated statistics of the amplitude measurements, you can compare the measurement values to the data sheets of the clock driver and the components being driven by the clock signal to verify that

amplitude characteristics are within specifications.