数字信号处理是利用计算机或专用处理设备，用数值计算的方法对信号进行采集

Digital signal processing is to use computers or special processing equipment to collect, exchange, synthesize, estimate and identify signals by numerical calculation methods, so as to achieve the purpose of extracting information and facilitating application. Digital signal processing systems have outstanding advantages such as flexibility, precision, strong anti-interference, small equipment size, low cost, and fast speed, which are unmatched by analog signal processing systems. Digital signal processing is a science that uses digital methods to process signals correctly and quickly to extract various types of information. Internationally, the advent of the Fast Fourier Transform (FFT, Fast Fourier Transform) in 1965 is generally regarded as the beginning of the emerging discipline of digital signal processing. This article briefly discusses the development process of digital signal processing and its application in the field of communication.

Digital signal processing is the use of computer or special processing equipment, using numerical calculation methods to collect signals, exchange, synthesis, valuation and identification of processing processing, in order to extract information and facilitate the application of the purpose. Digital signal processing system has flexible, accurate, strong anti-jamming, small equipment size, low cost, speed and other outstanding advantages, these are analog signal processing system can not be compared. Digital signal processing is a science to study the use of digital methods, process signals correctly and quickly, and extract all kinds of information. Internationally, the 1965 Rapid Fourier Transform (FFT, Fast Fourier Transform) is the beginning of the emerging discipline of digital signal processing. This paper briefly discusses the development process of digital signal processing and its application in the field of communication.

Digital signal processing is to collect, exchange, synthesize, estimate and identify signals by means of numerical calculation with computer or special processing equipment, so as to extract information and facilitate application. Digital signal processing system has many outstanding advantages, such as flexibility, accuracy, strong anti-interference, small size, low cost and high speed, which are incomparable to analog signal processing system. Digital signal processing is a science that studies how to process signals correctly and quickly and extract all kinds of information with digital method. In the world, the appearance of fast Fourier transform (FFT) in 1965 is generally regarded as the beginning of the new subject of digital signal processing. This paper discusses the development of digital signal processing and its application in the field of communication.<br>