Pulse is a signal that appears for a short time in the whole signal period relative to continuous signal, and there is no signal in most signal periods. Just like a person's pulse.
Now it generally refers to digital signals, which have been signals for half the time in a cycle. The signal in the computer is a pulse signal, also known as a digital signal. In addition, pulses are also used to express emotional impulses and demands.
Extended data:
Principle of pulse signal:
The so-called pulse signal is a curve with countless breakpoints in plane coordinates, that is to say, there is no limit of this point in some periodic places, such as sawtooth wave, and the signal 0, 1 of digital circuits used in computers.
Pulse signals, that is, signals similar to pulse jumps, are compared with DC and intermittent signals. If described by water flow, direct current means that the faucet keeps dripping, and pulse means that the faucet keeps opening and closing to form water pulse.
Pulse dialing:
Is a time domain processing method, using the number of pulses to represent numbers. Pulse dialing mode has strict requirements on pulse width, size, spacing and shape. If these parameters are changed due to line interference or other reasons, it may lead to wrong number reception.
On the other hand, because each pulse takes up a certain time (generally, the time taken up by each pulse is 100ms), this dialing method is slow.
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