In terms of signal source, there are only two signal modes, digital signal and analog signal. For example, the HDMI interface transmits digital signals. In the previous section, the understanding and advantages of digital signals have been introduced. Just talk about the analog signal, what analog signal, in the daily TV or computer display has such a display, the analog signal is a kind of nature.
Analog signal is a signal in which an information parameter appears to be continuous within a given range. Or, in a continuous time interval, the feature quantity representing the information may be presented as an arbitrary value signal at any instant. Analog signals refer to information expressed by continuously changing physical quantities, such as temperature, humidity, pressure, length, current, voltage, etc. We usually refer to analog signals as continuous signals, which can be infinite in a certain time range. Multiple different values. A digital signal is a discrete, discontinuous signal in its value.
What are the advantages of analog signals?
The main advantage of an analog signal is its precise resolution, which ideally has an infinite resolution. Analog signals have a higher information density than digital signals. Since there is no quantization error, it can describe the true value of the physical quantity in nature as close as possible.
Although analog signals and digital signals have different advantages and disadvantages, but the close relationship between the two is still inseparable, Starte HDMI fiber regularly updates relevant knowledge every day, learn more in Starte Official website.