Talking about the Realization and Application of DSP Digital Signal Processing Technology-XY Screens

Talking about the Realization and Application of DSP Digital Signal Processing Technology

by:XY Screens     2021-08-29
DSP stands for digital signal processing, which is the theory and technology of digitally representing and processing signals. The purpose of digital signal processing is to measure or filter continuous analog signals in the real world. Therefore, it is necessary to convert the signal from the analog domain to the digital domain before digital signal processing, which is usually realized by an analog-to-digital converter. The output of digital signal processing is often converted to the analog domain, which is achieved through a digital-to-analog converter. Digital signal processing algorithms need to use computers or special processing equipment, such as digital signal processors (DSP) and application specific integrated circuits (ASIC). Digital signal processing technology and equipment have outstanding advantages such as flexibility, accuracy, strong anti-interference, small equipment size, low cost, and high speed, which are unmatched by analog signal processing technology and equipment. The realization methods of DSP generally have the following kinds: Realize with software on a general-purpose computer, add a special accelerated processor to a general-purpose computer system, realize with a general-purpose single-chip computer, realize with a general-purpose programmable DSP, realize with a special DSP chip Among the above methods, the disadvantage of the first method is that it is slower and can generally be used for the simulation of DSP algorithms; the second and fifth methods are highly specific and their applications are greatly restricted, and the second method is not It is convenient for the independent operation of the system; the third method is only suitable for implementing simple DSP algorithms; only the fourth method opens up a new situation for the application of digital signal processing. DSP audio processing is simple to achieve. Most of the audio processing of traditional audio equipment uses analog equipment. These equipment or components are large in size, low in accuracy, and easily affected by the environment, and the components are more susceptible to aging and thus be affected. The use of digital audio processor greatly reduces the size of the equipment, improves the accuracy, and the digital equipment is less affected by the environment, will not affect the performance due to aging, and has many advantages such as high flexibility, good reliability, and easy development and upgrade. The essence of digital audio signal processing is to use digital filtering instead of analog filtering to perform digital conversion processing on the collected audio signals. The emergence of Digital Signal Processing (DSP) has given rise to the emergence and rapid development of digital signal processing technology. In terms of audio quality, after digital audio is converted from analog to digital, the closer it is to analog, the better. However, digital technology has great advantages in audio editing, synthesis, effect processing, storage, transmission and networking, as well as in terms of price. The audio technology in the digital age is not abandoning analog variables, but an organic combination of the two, learning from each other, using digital technology to pursue analog sound quality, and digital means to make up for the weaknesses of traditional audio equipment. The audio system is not only limited to the previous analog category, but is developing in the direction of digitization. The demand for data communication in modern society is developing towards diversification and personalization. And wireless data communication, as a powerful means to provide the public with rapid, accurate, safe, flexible and efficient data communication, its market demand is becoming increasingly urgent. It is under this situation that 3G and 4G communications will continue to be introduced, but whether it is 3G or 4G, future communications will be inseparable from DSP technology. DSP, as a powerful special microprocessor, is mainly used In terms of high-speed mathematical operations and real-time processing of data, voice, and video signals, it can be said that DSP will play a pivotal role in the field of future communications. In the digital conference system, DSP floating point processing technology can be used to make the sound quality clearer and more perfect.
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