sensor

Analog signals are continuously changing physical quantities and are widely used in many fields. The following is a detailed introduction for you: Communication field Traditional telephone system The human voice in the traditional telephone system is transmitted in analog form. The analog modem converts digital data into analog signals and transmits them through telephone lines. Wireless communication In wireless communication, analog signal processing plays a key role. For example, modulation and demodulation technology loads information onto the carrier signal through modulation, and demodulation extracts information from the received signal; signal filtering and noise suppression, carrier recovery and synchronization, multiplexing and demodulation also involve analog signal processing. Audio processing field Music player and radio The sound signals received by music players, radios and other devices are analog signals. These analog signals are directly output to the speakers after ...