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This article mainly introduces the difference between analog signal and digital signal, which can be used for reference by friends who need it. I hope you will learn a lot after reading this article. Next, let the editor take you to learn about it.

Difference: digital signals are discrete and analog signals are continuous. The digital signal is digitized. In the computer, CPU only knows the two numbers "0" and "1", so the digital signal needs to be represented by the binary number composed of "0" and "1", while the analog signal is a continuously changing physical quantity, and its frequency, amplitude and phase can change continuously with time.

Analog signal: refers to the signal in which the information parameters are continuous in a given range. Or in a continuous time interval, the characteristic quantity of the representative information can be presented as a signal of any value at any moment. It is distributed in every corner of nature, such as daily temperature changes, continuous peaks.

Digital signal: refers to the time discontinuous signal abstracted by people, whose amplitude is discrete, and the amplitude is limited to a limited number of values. For example, a binary code is a digital signal.

The main difference between analog signal and digital signal is that digital signal is discrete while analog signal is continuous.

The analog signal is represented by a series of continuously changing electromagnetic waves or voltage signals; the digital signal is represented by a series of intermittent voltage pulses (for example, we can use a constant positive voltage to represent the binary number 1, and a constant negative voltage to represent the binary number 0), or optical pulses.

The digital signal has only "0" and "1" states, while the analog signal can be any numerical state.

The digital signal is digitized. In the computer system, CPU only knows "0" and "1", so the digital signal needs to be represented by the binary number composed of "0" and "1". On the other hand, the simulation signal is a continuously changing physical quantity, and its frequency, amplitude and phase can change continuously with time.

Thank you for reading this article carefully. I hope it will be helpful for everyone to share the difference between analog signal and digital signal. At the same time, I also hope you can support us, pay attention to the industry information channel, and find out if you have any problems. detailed solutions are waiting for you to learn!

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