Where a pulse train or some other wave-shaping is used, a range of frequencies may be involved.

Some types are generated as repetitive and regular pulse trains.

We managed to get a look at the pulse train on the contact, and it looks, um, strange.

These ratios are called the duty cycle of the pulse train.

When the pulse train is used to modulate a radar carrier, the typical spectrum shown on the left will be obtained.

Two such "dying pulse trains" were observed, which is consistent with the existence of a black hole.

We have to follow up and see if we see more of these pulse trains.

The pulse train contains an average of the change in the amount of energy represented in the sample.

Delta receives the incoming digital signal and monitors the outgoing pulse train.

The clap sound only used shaped white noise, but was triggered by a multiple pulse train, to create a reverberation effect.