Grad and Mozina (1998) further demonstrated the effect of pulse shapes.

By tailoring the capacitors and switches one can generate a wide range of electrical pulse shapes.

They were detected by the microphone, amplified, reshaped into the correct pulse shape, and sent back into the delay line.

They can easily be designed to give a matched filter for any arbitrary pulse shape.

If a series of gates is opened in a short sequence, the pulse shape can be sampled.

No const-fraction discriminator is needed then and the system is very flexible concerning the pulse shape.

Optimum pulse shape depends on the application.

The simulation of the pulse shape for the any arbitrary detector is shown in the figure 8.

The value 0.441 is known as the time-bandwidth product of the pulse, and varies depending on the pulse shape.

For a more interesting effect on the pulse shape, a quadratic or higher-order phase shift is needed, as shown in Figures 4 and 5.